What 3 molecules cannot easily pass through the membrane?
Answers
Answer:
1. Large uncharged molecules; sugar, amino acids
2. Positive charged molecules; +ion
3. Negative charged molecules; -ion
Related Questions
The picture below shows a soil texture triangle.
Image of a soil texture triangle. Each side is labeled one of the three main soil types—silt, clay, and sand—and is divided into percentages, from 0 to 100. Each point in the triangle corresponds to a different soil texture, consisting of a different combination of silty, sandy, and clay soils. For instance, the top part of the triangle contains soils that range from approximately 50 percent clay to 100 percent clay. All these different soils are considered clays. Soils located farther down the triangle contain an increasingly small percentage of clay; for example, silty clay soils are primarily silt, with more clay than sand, and sandy clay soils are primarily sand, with more clay than silt. Soils located in the middle of the triangle contain roughly equal percentages of clay, sand, and silt; these soils are called “loam.” There are silty loam soils, which contain more silt than clay or sand; clay loam soils, which contain more clay than silt or sand, and sandy loam soils, which contain more sand than silt or clay. There are also silty clay loam soils and sandy clay loam soils.
One farmer plans to grow soybean. Soybeans grow best in medium loam soil. Which of these is the most likely soil sample that the farmer would select to grow soybeans?
sample containing 30 percent sand, 35 percent clay, and 35 percent silt
sample containing 25 percent sand, 15 percent clay, and 60 percent silt
sample containing 40 percent sand, 15 percent clay, and 45 percent silt
sample containing 55 percent sand, 30 percent clay, and 15 percent silt
Answers
Soybean is best grown on a soil of 30 percent sand, 35 percent clay, and 35 percent silt.
What soil is best for soybean?The soil is the outermost part of the earth crust on which plants grow. There are several types of soils but not all soils are suitable for all kinds of plants. Certain plants tends to thrive better on certain types of soil.
The type of soil that can be used to grow soybean is a soil composed of 30 percent sand, 35 percent clay, and 35 percent silt.
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Which of the following phrases describes a typical river mouth? a. clearer water with high levels of oxygen b. decreased vegetation and lower oxygen levels c. increased species diversity d. high levels of vegetation
Answers
Answer:
B) decreased vegetation and lower oxygen levels
Explanation:
right on Edg
The phrase describes a typical river mouth decreased vegetation and lower oxygen levels.
What is river mouth?The amount of oxygen in the air or water is referred to as the level of oxygen. Oceanic, freshwater, and terrestrial species that photosynthesize create oxygen. Plants, algae, and bacteria are some of these organisms.
Around 70% of the oxygen in the atmosphere is produced by photosynthesizing marine algae. Before the emergence of bacteria that make oxygen through photosynthesis, there was hardly any oxygen in the air or the water.
The discovery of oxygen changed the course of life's history on Earth; nowadays, oxygen is necessary for respiration, the metabolic process that releases energy from food, in the great majority of land, freshwater, and oceanic creatures.
Therefore, The phrase describes a typical river mouth decreased vegetation and lower oxygen levels.
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A researcher studying rats uses a tone to signal that food is available in the hopper. After a number of tone-food pairings, the researcher pairs an illuminated light with just the tone. The rat paws, licks, and chews on the illuminated light when the tone is sounded, even though no food is provided in this training stage. This conditioning procedure illustrates the phenomenon of:______.
a. Sensory preconditioning.
b. Conditioned emotional responding.
c. Stimulus generalization.
d. Higher order conditioning
Answers
The conditioning procedure described, where the rat responds to an illuminated light when the tone is sounded, even though no food is provided, illustrates the phenomenon of higher order conditioning.
The correct option is d. Higher order conditioning
Higher order conditioning, also known as second-order conditioning, occurs when a conditioned stimulus (CS) that is already associated with an unconditioned stimulus (US) is paired with a new neutral stimulus. In this scenario, the tone-food pairing is the initial conditioning stage, where the tone becomes a conditioned stimulus (CS) that elicits a response because it is associated with the food (unconditioned stimulus, US). In the subsequent stage, the illuminated light is paired with the conditioned stimulus (CS), the tone.
As a result, the rat exhibits the conditioned response (pawing, licking, chewing) to the illuminated light alone, even though it does not directly predict the food. This phenomenon demonstrates higher order conditioning because the response to the illuminated light is acquired through its association with the already established conditioned stimulus (CS), the tone. The rat has learned to generalize the response to the new stimulus based on its association with the original conditioned stimulus.
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what do we call it when water washes dirt away from a hillside?
A. Soil
B farming
C. Erosion
D. Volcano
Answers
Answer:
c. erosion
Explanation:
trust me and give brainliest
hope this helps!!
The Whale Shark (Rhincodon typus) and the Humpback Whale (Rhincodon
megaptera) belong to the same
A .Species
B .Animalia
C .Genus
D .Ocean
Answers
Answer: A
Explanation:
they are both the same species I believe
Answer:
C
Explanation:
The Whale Shark (Rhincodon typus) and the Humpback Whale (Rhincodon megaptera) both have the same first part of their scientific names.
By binomial nomenclature, proposed by Carl Linneaus, we know that a scientific name consists of two parts :
Genus and species
The first name is that of the genus, written with an uppercase letterThe second name is of the species, written in lowercaseHence, we can say they both belong to the same genus.
8. The extracellular pathway involves nonliving parts of roots and accounts for about 10%of the water that moves through the roots from the epidermis to the endodermis. True or False?
9. Mineral ions are absorbed into the root in the area about 1/8 inch, or 3 millimeters, above the root cap. True or False?
10. Microbial populations in the soil greatly improve some plants' abilities to absorb nutrients. True or False?
Answers
8. The extracellular pathway involves nonliving parts of roots and accounts for 10% of the water which moves through the roots. This is false.
9. Mineral ions are absorbed into the root in the area about 1/8 inch, or 3 millimeters, above the root cap. This is True.
10. Microbial populations in the soil enhance some plants' abilities to absorb nutrients. This is true.
How is water and nutrients absorbed?Ions and water are important for plant development and are obtained in the roots, which, in addition to holding the plant in the soil, have the function of absorption.
It should be noted that these substances enter through the roots and travel to the xylem, a conducting tissue that transports them to all parts of the plant.In the case of inorganic nutrients, uptake also occurs by the epidermis, mainly in the absorbent hairs of young roots.
Ions move from the epidermis to the endodermis through a symplastic way whilw the minerals are absorbed through active transport.
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Blocking the function of cholecystokinin (CCK) would result in: (Select all that)
a. Decreased motility in the stomach. b. The release of bile from the gallbladder. c. All answers are true.
d. The release of pancreatic enzymes into the duodenum.
Answers
Cholecystokinin (CCK) does not have a significant effect on stomach motility, so blocking its function would not result in decreased motility in the stomach. Therefore, the correct answer is d) The release of pancreatic enzymes into the duodenum.
Cholecystokinin (CCK) is a hormone produced in the small intestine that plays a role in the digestion and absorption of fats and proteins. CCK is released in response to the presence of fatty acids and amino acids in the small intestine and has several effects on the digestive system. One of the main functions of CCK is to stimulate the release of digestive enzymes from the pancreas. These enzymes, including lipase and proteases, are essential for the breakdown of fats and proteins in the small intestine.
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what role does catalase play in the mammalian liver, or any other cell it is found in?
Answers
Answer:
Breaks down harmful hydrogen peroxide
Explanation:
Catalase is an enzyme that breaks down harmful hydrogen peroxide which it converted it into oxygen and water.
After witnessing plant and animal cells under a microscope, which conclusion did scientists Schwann and Schleiden make about living organisms?
All living organisms have chloroplasts.
All cells have a thick coating around them.
The cell is the largest unit of structure in an organism.
The cell is the basic unit of structure in living things.
Answers
After witnessing plant and animal cells under a microscope, the conclusion that the scientists Schwann and Schleiden make about living organisms is that cell is the basic unit of structure in living things.
Schwann and Schleiden were the first scientists to give the cell theory after studying the plant and animal cells.
According to cell theory-
1. All the living organisms are made up of one or more cells.
2. Cell is the basic unit of living organism
3. All the existing cells arise from the pre-existing cells
Cells can be divided into two basic types prokaryotic and eukaryotic cells depending on presence and absence of nuclear membrane and membrane bound organelle.
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Answer:
(D) The cell is the basic unit of structure and function in living organisms.
Explanation:
The reason why my answer is correct is because the Cell Theory states:
All living organisms are composed of one or more cells.All cells come from preexisting cells.The cell is the basic unit of structure and function in living organisms.Bromothymol blue (BTB) is a pH indicator that turns yellow in the presence of high levels of carbon dioxide (CO) in water. If BTB is added to a water solution that has high levels of Co, the solution will turn yellow
If it has no CO, the solution with BTB will remain blue
Possible colors of BTB depending of the amount of Co, presenti
ESS
more
Color blue
NO CO, or very low
Color green
Intermediate Co
Color yellow
High Co.
Students are performing an experiment to understand the transfers of carbon between a photosynthetic organism, the aquatic plant Elodea, and a water snail. They are using test tubes that contain the same
amount of water, partially enriched in CO2, and the same amount of BTB, to detect the presence of Co, The test tubes are placed in natural sunlight for the duration of the experiment, as shown in the image. The
contents of each test tube are as follows:
Answers
Which characteristic do viruses share with living things?.
Answers
B is representing a section of DNA that codes for a
particular trait, which is a
DONE
Intro
protein
gene
nucleus
ID
foooti
1000..
B
Answers
A section of a Target DNA (a series of nucleotides) that translates for a certain protein and establishes an individual's phenotypic. The fundamental component of reproduction in a live creature is a gene.
What is the name of the region of DNA that corresponds for a certain protein?A unique piece of DNA named a gene codes for each protein. Because they code data proteins consisting of a large number of amino acids, genes often have tens of thousands of base pairs.
What really is DNA and what does it do?The information molecule is DNA. It provides the knowledge required to make proteins, another type of important molecule. The 46 lengthy chromosomes that make up everyone of your cells act as a distribution center for these instructions. The genes that make up the chromosomal be made up of many smaller DNA fragments.
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Help ASAP! TY SO MUCH BOYS AND GIRLS
Answers
Answer:
1
4
7
6
5
2
3
Explanation:
Sorry if my answer is wrong
Order the atoms involved in cellular respiration from most prevalent to least: Oxygen (O), Carbon (C), Hydrogen (H)
Answers
Answer:
The order would be O,H,C
Order the atoms involved in cellular respiration from most prevalent to least: O, H, C
CELLULAR RESPIRATION:
Cellular respiration is the metabolic process by which living organisms get energy by breaking down mainly sugar molecules in their cells. Cellular respiration mainly takes place in the presence of oxygen as depicted in the reaction as follows:
C6H12O6 (glucose) + 6O2 (oxygen) → 6CO2 (carbon dioxide) + 6H2O (water)The three elements hydrogen, oxygen, carbon are involved in the chemical reaction mentioned above.The following number of atoms of each element is involved in the respiration process: 18 atoms - oxygen12 atoms - hydrogen6 atoms - carbonThus, Order the atoms involved in cellular respiration from most prevalent to least: O, H, C
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what organalls contains its own dna
Answers
The trigeminal nerve (V) has three nerve branches: optic nerve, maxillary nerve, and oculomotor nerve. True False
Answers
Answer:
The answer is False
Explanation:
Trigeminal Nerve. The trigeminal nerve as the name indicates is composed of three large branches. They are the ophthalmic (V1, sensory), maxillary (V2, sensory) and mandibular (V3, motor and sensory) branches.
What is the importance of biology to globalization?
Answers
Biologists generally research the composition, function, development, origin, evolution, and distribution of living things. This helps in globalisation.
Why studying biology is important?It offers details about numerous types of living. The study of the human body and surroundings, the ecosystem, the quality of food, the causes of sickness, and the development of novel therapies are a few more fields of biology that are concerned with the sustainability of life.
Students can learn more about their own bodies, the functions of the organs we are born with, and how our systems operate as a result. Biology not only teaches us about how our bodies work.
Therefore, Biologists generally research the composition, function, development, origin, evolution, and distribution of living things. This helps in globalisation.
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Mitosis ans meiosis are both ways in which cells___?
Answers
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.
Explanation:
What causes the differences in traits between
organisms of the same species?
Answers
please help me, I'm from Vietnam you can translate
Answers
Answer:
What does it say? I can't read it well
Explanation:
How do heart and the lungs work together?
Answers
The right side of your lungs gets blood from your body and then it advances to pump it to the lungs. Then the lungs fill up the blood with oxygen and sends it to the heart. The left side of the heart gets the blood from the lungs and pumps it out to the body.
E If you increase the surface area of a rock, how will it affect the rate at which it weathers? It will weather more quickly. b. It will have no effect because surface area is not a factor in weathering. It will weather more slowly. d. It will have no effect because a rock does not have a surface area. C.
Answers
Answer:
it will weather more quickly
Answer:
It's A
Explanation:
Can someone help me understand this question
Answers
Answer:
Explanation: The names of the compounds given are really large and complex molecules. They are asking for the building blocks of these molecules which is what the complex molecules are made of. One is given (glucose). They are also asking for the function of the building blocks, which means what is the building block of each molecule needed for in a human body. And the examples of those building blocks and functions.
Age is an example of a ____________ measure. Age is an example
of a ____________ measure. nominal biological discrete
continuous
Answers
Age is an example of a nominal and discrete measure. It classifies individuals into distinct categories based on the number of years they have lived, but it does not have any inherent numerical meaning or allow for intermediate values.
Age is an example of a nominal measure. A nominal measure is a type of measurement scale that classifies data into distinct categories or groups. In the case of age, individuals are categorized into specific age groups, such as 0-18, 19-30, 31-45, and so on. These categories do not have any inherent numerical or quantitative meaning. Instead, they serve as labels to differentiate different age ranges.
Unlike a biological measure, which refers to physical characteristics of living organisms, age is not directly related to an individual's biology. It is a social construct that is used to determine the number of years a person has lived since birth. Age can be measured using a variety of units, such as years, months, or days.
Age is also a discrete measure because it takes on specific, separate values. For example, someone can be 15 years old, 25 years old, or 40 years old. There is no intermediate value between these discrete age categories.
On the other hand, age is not a continuous measure. A continuous measure is one that can take on any value within a certain range. For example, height or weight can have any value within a specific range. In the case of age, there are distinct categories and no intermediate values. You are either in one age group or another.
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high concentrations of serum iron bound to transferrin would result in which of the following scenarios in the target cells:
Answers
Translation of the ferritin mRNA will rise while the stability of the transferrin mRNA will decline.
Transferrin carries iron to the bone marrow again for creation of hemoglobin and some of the erythrocytes once iron has been bonded to it. Iron is lost by the body through menstruation, epithelial cell erosions, and sweating. Iron loss must occur and cannot be specifically controlled. Blood proteins called transferrin receptors may be increased in people with iron shortage.Translation of the ferritin mRNA will rise while the stability of the transferrin mRNA will decline. In order to assess iron deficiency and make the diagnostic of iron-deficiency anemia, transferrin testing is utilized to detect the amount of soluble transferrin receptors. An elevated amount of iron may indicate: An excess of myoglobin (hemochromatosis) Anemia brought on by a rapid loss of red blood cells (hemolytic anemia) death of liver tissue.
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How many African Americans are carriers of the sickle-cell allele?
1 in 100
1 in 11
1 in 500
1 in 50
Answers
Answer:
Sickle cell trait is an inherited blood disorder that affects 1 million to 3 million Americans and 8 to 10 percent of African Americans.
Sickle cell anemia is an autosomal recessive disorder that is carried by 1 in 500 African Americans, according to the National Institute of Health (NIH).
Sickle cell anemia occurs due to mutation in the beta chain of the hemoglobin molecule, where the glutamic acid at the 6th position of chromosome 11 is substituted by valine.
Having a sickle cell trait cannot cause disorder because the person with the sickle cell trait only contains one allele containing this mutation. Contrary to this, a patient with Sickle cell anemia has a mutation in both alleles.
The African populations were most prone to malaria, and sickle cell trait evolved as a mechanism of defense against malaria. Having the Sickle cell trait helps in fighting the malarial pathogen.
Apart from the African American population, people having ancestors from Sub-Saharan, South Asian, Middle Eastern, Central, and South American origin are also prone to contain the Sickle cell trait.
This concludes that people of African American origin are prone to inherit the sickle cell trait from their ancestors, and about 1 in every 500 people will be a carrier of this allele.
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Which is the proper order of structures that contact the substances removed from the blood? a. nephron → urethra → bladder → ureter b. urethra → ureter → bladder → nephron c. nephron → ureter → bladder → urethra d. urethra → bladder → ureter → nephron
Answers
The proper order of structures that contact the substances removed from the blood is: c. nephron → ureter → bladder → urethra. Therefore, the correct option is c.
The nephron is a functional unit of the kidney that filters the blood and removes waste products. The ureter is a tube that carries urine from the kidney to the bladder.
The bladder is a muscular organ that stores urine until it is released from the body through the urethra. Finally, the urethra is a tube that carries urine out of the body.
The part of the kidney responsible for filtering blood and producing urine is called a nephron. The ureter, a muscular tube that transports urine from the kidney to the bladder, receives the pee next.
The urethra, a tube that extends from the bladder to the outside of the body, is where urine is expelled. The bladder is a muscular sac that holds urine until that time. Therefore, the correct option is c.
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"Wow! This rose bush is doing so much better on this side of the house than
on the other side. I wonder why that is?"
Answers
East or South side is best
Explanation:
Roses do best in full sun and morning sun is the best place. so always plant roses the along an east wall or south side of your home
Are chloroplasts found in animal cells? Explain.
Answers
Answer:
Chloroplasts are the food producers of the cell. The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the sun into sugars that can be used by cells.
Animal cells do not contain chloroplasts because they do photosynthesize.
CHLOROPLAST:
Chloroplast is a membrane-bound organelle found in certain eukaryotic cells that have the ability to synthesize their own food e.g. plant cells. Chloroplast organelle contains a pigment called CHLOROPHYLL which captures light energy from the sun. The energy is used to synthesize glucose in plant cells. Animal cells, on the other hand, are heterotrophic i.e. cannot produce their own food and hence depend on other organisms. Animal cells cannot produce their own food because they do not contain the chloroplast organelle.Learn more at: https://brainly.com/question/18916518?referrer=searchResults
Answer the question in 5-10 sentences. Make sure to answer each part of the question.
Explain what type of information about an organism can be lost during fossilization and how this impacts our understanding of the fossil record.
Answers
During fossilization, information about an organism's soft tissues, behavior, and internal structures is often lost, which impacts our understanding of the fossil record.
Explanation: Fossilization is a complex process that involves the preservation of certain parts of an organism while others decay or are destroyed. As a result, important information about an organism can be lost during fossilization. Soft tissues, such as muscles, skin, and organs, are generally not well-preserved and tend to decay rapidly, leaving behind only hard parts like bones, shells, or teeth. This means that valuable insights into the anatomy, physiology, and external appearance of organisms may be missing from the fossil record.
Additionally, behaviors and interactions among organisms are rarely fossilized. Activities like feeding, mating, or social interactions leave little to no trace in the fossil record, making it difficult to reconstruct the ecological and behavioral aspects of ancient organisms. Internal structures, such as the brain, reproductive organs, or digestive system, are also rarely preserved, limiting our understanding of the internal anatomy and physiological processes of ancient organisms.
The loss of this information can lead to gaps and biases in our understanding of the fossil record. It can make it challenging to accurately reconstruct ancient ecosystems, trace evolutionary pathways, or understand the functional adaptations of extinct organisms. Nevertheless, even with these limitations, the fossil record still provides valuable insights into the history of life on Earth, helping scientists unravel the story of past organisms and their environments.
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