Answers
Answer:
red
Explanation:
Enzymes lower the activation energy needed for a reaction to occur.
Related Questions
which of the following is a correct statement? whales, bats, and humans share a common ancestor whale ancestors required more food than could be found on land, so they evolved features that could allow them to survive in the water. viruses mutate to acquire the best-adapted hemagglutinins throughout their evolution. mutations always lead to the improvement of a particular trai
Answers
The correct answer is option A. Whales, bats, and humans share a common ancestor.
This is because all three species have descended from the same type of ancestral mammal, evolving over time to take on different forms and characteristics.
For example, whale ancestors required more food than could be found on land, so they evolved features that could allow them to survive in the water. Similarly, bats evolved their wings to enable them to fly and humans evolved bipedalism, allowing them to walk on two feet.
Mutations are also a major factor in the evolution of species. These happen when the genetic code of an organism changes, resulting in a new version of a particular trait. For example, viruses mutate to acquire the best-adapted hemagglutinins throughout their evolution.
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How do ATP and NAPDH connect light-dependent and light-independent reactions in photosynthesis
Answers
ATP and NADPH serve as key molecules that connect the light-dependent and light-independent reactions in photosynthesis. They play crucial roles in transferring energy and reducing power between the two processes, ensuring the overall efficiency of photosynthesis.
1. Light-Dependent Reactions: These reactions occur in the thylakoid membranes of the chloroplasts and convert light energy into chemical energy. During this process, light energy is absorbed by chlorophyll and other pigments, leading to the generation of ATP and NADPH.
2. ATP Generation: The absorbed light energy is used to power the electron transport chain, which pumps protons across the thylakoid membrane, creating a proton gradient. The flow of protons back across the membrane through ATP synthase generates ATP from ADP and inorganic phosphate.
3. NADPH Generation: Simultaneously, the energized electrons from the electron transport chain are transferred to NADP+, reducing it to NADPH. This process requires the input of high-energy electrons and protons.
4. Light-Independent Reactions (Calvin Cycle): ATP and NADPH generated during the light-dependent reactions are utilized in the stroma of the chloroplasts to fuel the Calvin cycle. Here, carbon dioxide is fixed and converted into glucose through a series of enzymatic reactions.
5. ATP Utilization: ATP provides the necessary energy to power the various enzyme-catalyzed reactions in the Calvin cycle. It is used to drive the carboxylation of ribulose bisphosphate (RuBP), the regeneration of RuBP, and other key steps in the cycle.
6. NADPH Utilization: NADPH functions as a reducing agent in the Calvin cycle, providing the necessary high-energy electrons to convert carbon dioxide into glucose. It acts as a source of electrons in the reduction of 3-phosphoglycerate to glyceraldehyde 3-phosphate (G3P).
7. Recycling of ADP, NADP+, and Pi: As ATP is hydrolyzed to ADP and inorganic phosphate (Pi) during the Calvin cycle, ADP and Pi are regenerated in the light-dependent reactions. Similarly, NADP+ is regenerated from NADPH.
8. Continuous Cycle: The production of ATP and NADPH in the light-dependent reactions and their utilization in the light-independent reactions create a continuous cycle, ensuring the flow of energy and reducing power required for photosynthesis.
In summary, ATP and NADPH act as energy and reducing power carriers, respectively, connecting the light-dependent reactions that capture light energy with the light-independent reactions that utilize this energy to produce glucose. Their continuous generation and utilization ensure the efficiency and functionality of photosynthesis.
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The Chromosome 18 Inversion
Not all structural rearrangements of chromosomes produce nonviable, impaired, or infertile individuals. In rare instances, such a change can result in the evolution of a new species. In fact, a pericentric inversion in chromosome 18 appears to have contributed to the evolution of humans. This inversion is not present in our closest genetic relatives, the chimpanzees. Humans and chimpanzees differ cytogenetically by pericentric inversions on several chromosomes and by the fusion of two separate chromosomes in chimpanzees that correspond to chromosome two in humans.
The pericentric chromosome 18 inversion is believed to have occurred in early humans following their divergence from a common ancestor with chimpanzees approximately five million years ago. Researchers characterizing this inversion have suggested that approximately 19,000 nucleotide bases were duplicated on 18p, and the duplicated region inverted and reinserted on chromosome 18 of an ancestral human.
A comparison of human and chimpanzee genes in the region of this inversion indicates that two genes—ROCK1 and USP14—that are adjacent on chimpanzee chromosome 17 (which corresponds to human chromosome 18) are more distantly positioned on human chromosome 18. This suggests that one of the inversion breakpoints occurred between these two genes. Interestingly, humans and chimpanzees express USP14 at distinct levels in specific cell types, including cortical cells and fibroblasts. Perhaps the chromosome 18 inversion in an ancestral human repositioned specific genes and reset their expression levels in a useful way. Because both ROCK1 and USP14 encode cellular enzymes, a change in their expression could alter cellular function. It is not known how this inversion contributed to hominid evolution, but it appears to be a significant factor in the divergence of humans from other primates.
According to the passage, which of the following events are believed to have occurred after humans diverged from their common ancestor with chimpanzees?
a. Paracentric inversions occurred at several chromosomes, including human chromosome 18.
b. Two separate chromosomes underwent a pericentric inversion, then fused to form chromosome 2 in humans.
c. 19, 000 nucleotide bases were duplicated, inverted, and reinserted at human chromosome 18.
d. The ROCK1 and USP14 genes were duplicated in early humans, which increased expression of these genes.
Answers
The appropriate response is Early humans duplicated the ROCK1 and USP14 genes, which boosted their expression.
Pericentric inversion refers to the alteration of the normal gene sequence that happens on both sides of the centromere. Each arm of the chromosome has a break point as a result of this inversion. Breakage might happen at two different places.
Human evolution began following chromosomal pericentric inversion. Because of this inversion, humans and chimpanzees no longer share a common ancestor. On the human ancestor's chromosomal number 18, about 19000 nucleotide bases were duplicated, inverted, and then reinserted.
Therefore, alternative is the right response. Early humans duplicated the ROCK1 and USP14 genes, which boosted their expression.
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The Family of elements whose atoms have their outer layers of electrons completely filled making their very, very stable is the ___________ family.
Answers
Answer:
Nobel gases
Explanation:
Hope it helps!
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which of the following materials are being transported in and out of the cell through its cell membrane
A: dna and mitochondra
b: energy and water
c: waster and nutrients
PLEASE HELP FAST
Answers
Answer:
B
Explanation:
Because its the circle of life
Waste and nutrients are the materials are being transported in and out of the cell through its cell membrane. Thus, the correct option is C.
What is membrane transport?Membrane transport is the collection of mechanisms which regulate the passage of solutes such as the ions and small molecules through biological membranes such as plasma membrane, which are lipid bilayers that contain protein units embedded in them.
The regulation of transport passage through the membrane is due to the selective membrane permeability, which is a characteristic of the biological membranes that allows them to separate substances of distinct chemical nature to transport through them. Cell waste and nutrient are two such materials which are being transported in and out of the cell through its cell membrane.
Therefore, the correct option is C.
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Diverse mammals developed and began to flourish in the Cenozoic era . Which of the following also began to develop and flourish during this time ?
Answers
Answer:
B. First Bacteria
Explanation:
Which of the following is NOT a type of carbohydrate? *
wax
sugar
starch
cellulose
Answers
Of the three forms of CO2 transport found in the blood, the majority of CO2 is?? A. bicarbonate in plasma (HCO3-). B. bound to the surface of a macrophage. C. carbonic acid (H3CO3). dissolved CO2 in plasma. D. bound to hemoglobin (carbaminohemoglobin).
Answers
CO2 is transported in the blood from the tissue to the lungs. It can be dissolved in the blood, buffered with water as carbonic acid, bound to plasma proteins or hemoglobin or converted into bicarbonate. Majority of of CO2 is transported as bicarbonate in plasma. 62% exists as bicarbonate in plasma. 26 %The bulk of bicarbonate is produced inside the cell and transported to the plasma.
Answer - Option A - bicarbonate in plasma (HCO3-).
Pls answer will mark brainliest to first person! I will report if it does not relate. Research an internal organism that has adapted over time to allow the species to perform specialized functions. Describe how the internal structure helps the organism survive in its ecosystem.
Answers
Answer:
An organism that was adapted over time to perform specialized functions is the saddleback tortoise which adapted slowly over time. Saddleback tortoise have shells that rise in front, like a saddle. This adaptation makes it easier for them to lift their heads high to eat tree cactus. This helps the tortoise survive by letting it reach a food source and not starve.
Explanation:
Answer:b
Explanation:
The structure
Design and organise learning experiences according to your local circumstances when teaching Processing (including traditional processing of raw materials; metal processing; food processing)
Answers
When teaching Processing, it is essential to design and organize learning experiences that align with local circumstances and provide practical applications.
Here is a suggested approach for teaching Processing, including traditional processing of raw materials, metal processing, and food processing, considering local circumstances:
1. Introduction and Contextualization:
Start by introducing the concept of processing and its importance in various industries. Provide examples of local raw materials, metals, and food products that undergo processing. Discuss the significance of processing in the local economy and its impact on society.
2. Field Trips and Industry Visits:
Arrange field trips to local processing facilities such as factories, mills, or food processing plants. These visits offer students firsthand exposure to different processing techniques and machinery. Encourage students to observe and interact with professionals in the field, asking questions and understanding the practical aspects of processing.
3. Hands-on Workshops:
Organize hands-on workshops where students can engage in practical activities related to processing. For example, set up a metalworking workshop where students can learn basic metal processing techniques like cutting, shaping, and welding. Provide guidance on safety measures and proper tool usage.
4. Local Case Studies:
Explore local case studies of successful processing businesses or initiatives. This could involve inviting guest speakers from local processing companies or inviting entrepreneurs who have started their own processing ventures. Students can learn about the challenges, opportunities, and sustainable practices in the local processing industry.
5. Project-Based Learning:
Assign project-based tasks that allow students to apply their knowledge of processing. For example, students could design and develop a prototype for a food processing machine or propose innovative methods to improve traditional processing techniques using local resources. Encourage creativity, critical thinking, and problem-solving skills throughout the project.
6. Community Engagement:
Encourage students to engage with the local community by organizing outreach programs related to processing. This could involve organizing workshops for local artisans or collaborating with local farmers to develop value-added food products. Such activities foster a sense of social responsibility and provide students with real-world experiences.
7. Assessment and Reflection:
Regularly assess student understanding through quizzes, assignments, and presentations. Encourage reflective practices where students can evaluate their own learning journey and identify areas for improvement. Incorporate feedback mechanisms to continuously enhance the learning experiences.
By designing learning experiences that incorporate field trips, hands-on workshops, local case studies, project-based learning, community engagement, and reflective practices, students will develop a holistic understanding of processing and its significance in their local context. This approach will equip them with practical skills, foster creativity, and promote an entrepreneurial mindset, preparing them for future opportunities in the processing industry.
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What is the difference between mitosis and metosis?
Answers
Answer:
Mitosis is the division of body cells.
Meiosis is the division of sex cells.
Explanation:
Dk how to explain, I recently just learned this myself. I would love to help if you have anymore questions. There is more depth with this topic
Answer:
Numbers of Daughter cells
Explanation:
Mitosis has produced two daughter diploid cells with the same chromosome numbers, whereas meiosis has four daughter haploid cells containing one-half the number of chromosomes as the original cell.
Can produce similarities in body form when similar environments and natural selection have favored similar adaptionsconvergent evolution
Answers
When similar conditions & natural selection have favored similar adaptations, convergence in evolution may result in similarities in physical structure.
What is an example of similarity?Similarity is the sameness or likeness of something. When comparing actual objects, ideas, or experiences, you frequently take into account both the similarities and differences between the two things. Difference is similarity's antithesis. Rectangles & squares share the feature of having four sides.
How do you identify similarities?Students can compare using Venn diagrams, matrices, or T-charts, which are all effective tools. Children in the primary grades can compare two things, persons, or locations based on experiments or personal experience. After hearing a story, students might also start to compare and contrast.
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1. Calculate the molarity of 0.75 L of a solution containing 0.83 g of dissolved KCl.
A 0.015 M
B 0.75 M
C 1.1 M
D 6.2
Answers
Answer: A
Explanation:
a particle is found to have 8 protons 10 electrons and 10 neutrons. what is it?
Answers
Answer:
It is an oxygen ion
Explanation:
6. Samples of atmospheric air and exhaled air were analysed by four groups
of students for oxygen and carbon (IV) oxide content. The following are
the results, expressed in volumes per thousand:
(i) Amount of oxygen in atmosphere = 200
(ii) Amount of oxygen in exhaled air = 160
(iii) Amount of carbon (IV) oxide in atmosphere = 300
(iv) Amount of carbon (IV) oxide in exhaled air =41
Explain the difference in volume of each gas between the atmosphere and
the exhaled air.
Answers
Answer:
Due to difference in volume of both atmosphere.
Explanation:
There is difference in volume of carbondioxide and oxygen gas between the atmosphere and the exhaled air because of the volume difference of atmosphere and exhaled air. The volume of atmosphere is larger than the body from where the gases are exhaled. The body has lower space for these gases so these gases are less in concentration in the exhaled air which the body releases as compared to the atmosphere where the concentration of these gases are larger.
What is the probability that unicorn offspring will have a white horn? Brown horn?
Answers
The probability that the offspring will have a white horn is 3 out of 4, or 75%.
In unicorns, the trait of having a white horn (W) is considered dominant over having a brown horn (w). When two heterozygous unicorns, each carrying one dominant white horn allele (W) and one recessive brown horn allele (w), are crossed, the probability of their offspring having a white horn can be determined using Punnett squares.The possible genotypes of the parent unicorns are Ww and Ww. When these genotypes are crossed, the potential offspring can inherit one of the following genotypes: WW, Ww, Ww, or ww. Out of these options, three of them (WW, Ww, Ww) contain at least one dominant white horn allele, resulting in a unicorn with a white horn. Therefore, the probability that the offspring will have a white horn is 3 out of 4, or 75%. This calculation is based on the assumption that the genetic traits are inherited independently and follow Mendelian inheritance patterns.For more questions on genotypes
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Note: The question would be as
In unicorns, having a white horn (W) is dominant to having a brown horn (w). Two heterozygous unicorns are crossed. What is the probability that the offspring will have a white horn?
informational text about the food chain
Answers
Answer:
what food chain ?
Explanation:
one difference between cancer cells and normal cells is that cancer cells one difference between cancer cells and normal cells is that cancer cells are arrested at the s phase of the cell cycle. continue to divide even when they are tightly packed together. are always in the m phase of the cell cycle. are unable to synthesize dna. cannot function properly because they are affected by density-dependent inhibition. request answer
Answers
One difference between cancer cells and normal cells is that cancer cells continue to divide even when they are tightly packed together.
A general term for conditions characterized by uncontrolled cell growth is cancer. Because of their altered perception of commonly used cellular signals, typically caused by genetic mutations to common signal receptors, cancer cells frequently have the ability to grow with little or no control.
Cancer cells, in contrast to normal cells that function normally, are not actually affected by inhibition based on density, which means that they continue to divide even when they are packed together tightly. In ordinary, working cells, they can't keep separating when they are stuffed firmly together by a cycle known as thickness subordinate hindrance, by which the tight bundle of cells paracrine signs to be conveyed to hinder cell development factors. This cycle is started to restrict contest for supplements and potential tissue harm coming about because of the choking of cells in too close a region. Cancer cells do not respond to these limiting markers, so even in restricted areas, they grow unabated.
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Giant sequoias can grow to be nearly 100 meters (328 feet) tall. They rely on a complex transport system to allow
water to travel from the roots to the leaves at the top of the tree.
Which transport tissue allows water to travel upward from the roots to the leaves?
Enter your answer in the box.
Answers
The transported tissue that allows water to travel upward from the roots to the leaves is the xylem tissue in vascular plants such as in this case giant sequoia.
What is the function of the xylem tissue in trees and vascular plants?The function of the xylem tissue in trees and vascular plants is to transport water and dissolved solutes from the roots to the upper organs, i.e., the shoot and leaves.
Therefore, with this data, we can see that function of the xylem tissue in trees and vascular plants is based on water transport.
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If all the grass disappeared from this community, which change would be
most likely to occur?
squirrel
coyote cougar
mouse deer
XIA
acorns
grass
mushrooms
OA. The squirrel population would decrease.
OB. The coyote population would increase.
OC. The cougar population would stay the same.
OD. The deer population would decrease.
Answers
Answer:
If all the grass disappeared from a community, the most likely change to occur would be that the deer population would decrease. This is represented by option D. Deer are herbivores and rely on grass and other vegetation as a primary food source. Without grass, the deer would have less food available, which could lead to a decrease in their population. This could also have a cascading effect on other species in the community, such as predators that rely on deer as a food source.
Explanation:
What is the purpose of the tool shown in the photograph?
Answers
Answer:
B: it magnifies an object so you can study its details!
Explanation:
it's a microscope which helps you observe things up close!:)
How does Earth's revolution around the sun and the tilt of its axis affect the seasons?
A) by changing earths position in orbit
B) by changing the distance earth is from the sun
C) by changing the intensity of sunlight all the different parts of earth
D) by changing atmospheric temperatures on earth at the equator
Answers
The season change is caused by the tilt of the Earth's axis which leads to different parts of Earth receiving the Sun's most direct rays. The season is affected because of changing the intensity of sunlight in all the different parts of the Earth.
What is the axis of Earth?The axis is the imaginary line on which a planet rotates around. Earth's rotational axis is an line that is imaginary and runs straight through the North and South Pole.
Earth's revolution around the sun and the tilt of its axis affect the seasons by changing the intensity of sunlight all the different parts of Earth.
Thus, the correct option is C.
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Which part of the cell theory best explains why unicellular organisms can perform all life’s basic functions even though they are made up of one cell
Answers
Answer: The part of the cell theory that best explains why unicellular organisms can perform all life's basic functions is "all living things are composed of cells."
Explanation: This means that unicellular organisms are composed of a single cell that has all the necessary components and functions to carry out life processes on its own. The cell is the basic unit of life and contains all the necessary structures, such as a cell membrane, cytoplasm, and genetic material, that allow it to carry out functions such as reproduction, metabolism, and response to stimuli. Therefore, unicellular organisms can perform all basic life functions because their single cell contains all the necessary components to do so.
Select all of the measurable performance objectives required in this course listed below
Answers
The measurable performance objectives required that is required in a course will be that I will earn a B or better on my MAT 101 midterm exam.
What is performance objective?It should be noted that a performance objective is a specific end result which contributes to the success of the organization and which an employee is expected to accomplish or produce.
Measurable: This implies the objective's specific criteria can be quantified such that it's useful for both management and the employee
Goal: This will be I will target my lowest class average in order to raise my overall GPA.
Measurable: I will earn a B or better on my MAT 101 midterm exam.
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Select the measurable performance objectives required in this course listed below:
I want to improve my score.
I want to get a car
I will earn a B or better on my MAT 101 midterm exam.
I need new books.
2. What type of equipment would a scientist use to capture specimens from the ocean?
O trawlers
sonar
O submersibles
O satellites
Answers
Answer: C! :)
Explanation:
I just took the test :) pls give brainliest!
Which is a function performed by the central nervous system (CNS)? Select all that apply.
processing information that is received from the stimuli receptors
receiving stimuli and making the body react to those stimuli
sending out information so that the body can react appropriately to stimuli
coordinating reflexes and reactions to stimuli
sensing stimuli and causing reactions in the body
Answers
Answer:
Which is a function performed by the central nervous system (CNS)? Select all that apply.
processing information that is received from the stimuli receptors **
receiving stimuli and making the body react to those stimuli
sending out information so that the body can react appropriately to stimuli **
coordinating reflexes and reactions to stimuli **
sensing stimuli and causing reactions in the body
Explanation:
I took test
The function that should be performed by the C-N-S should be option a, option third, and option fourth.
What is central nervous system (C-N-S)?The central nervous system (C-N-S) should be comprise of the brain and the spinal cord. It this, it contain 2 parts of the nervous system. The other part should be considered as the peri-ph-e-r-al nervous system, which comprise of nerves that linked the brain and spinal cord to the rest of the body.
Therefore, we can conclude that The function that should be performed by the C-N-S should be option a, option third, and option fourth.
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Match the following terms with the correct definition.
1. Hypothesis
2. Control
3. Dependent Variable
4. Experiment
5. Conclusion
6. Data
7. Independent Variable
A. Organized process to test a hypothesis
B. An educated guess about the solution to a problem
C. Observations & measurements recorded
D. A judgment based on the results of an experiment.
E. Used to show that the result of an experiment is
really due to the condition being tested
F. The factor that is manipulated during an experiment
G. The response that is measured in an experiment
Answers
The match for the given scenario will be 1-B, 2-E, 3-F, 4-A, 5-D, 6-C, and 7-G.
What is an experiment?An experiment is a methodology that is conducted out to confirm or disprove a hypothesis, or to assess the effectiveness or possibility of a method that has never been tried before.
A hypothesis is an educated guess about a problem's solution. Control is used to demonstrate that the outcome of an experiment is truly due to the condition under test.
The component that is manipulated during an experiment is known as the dependent variable. Experiment is a structured process for testing a hypothesis.
A conclusion is a decision based on the outcomes of an experiment. Observations and dimensions are recorded as data.
The response measured in an experiment is known as the independent variable.
Thus, the correct match is 1-B, 2-E, 3-F, 4-A, 5-D, 6-C, and 7-G.
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Why does the cell need to replicate its DNA during interphase?
Answers
Answer:
In Mitosis the cell is diving in two to make 2 exact copies. You need to double the DNA to make sure you have enough DNA for each daughter cell
Explanation:
B)Is gold heavier than silver?
C)Do apples taste better than oranges
Answers
Answer:
B): Gold is in fact heavier than silver. Smaller gold objects will be heavier than silver objects even if they're both the same size.
C): I cannot answer this question because it would be an opinion. Both are good in nutritional value.
Explanation:
A force of 5 N is required to increase the speed of a box from a rate of 1.0 m/s to 3.0 m/s within 5 s along a level surface. What change would most likely require additional force to produce the same results?
(SC.6.P.13.3)
reduce the mass of the box
increase the mass of the box
make the surfaces of the box smooth
make the surface of the floor smooth
HELPPP
Answers
Answer:increase the mass of the box
Explanation:
Big brain