Biology College

Which of these transport processes is the major means by which Na+ is transported across the membrane of neurons? Why?

A) both II and III because the activity of the neuron varies
B) I because Na+ is so small it can freely diffuse into the cell
C) III because Na+ is actively transported out of a neuron to maintain extracellular concentration
D) II because Na+ is charged and cannot cross the hydrophobic interior space of the cell membrane

Answers

Answer 1

Answer:

i think it’s C

Explanation:

I. is diffusion

II. is facilitated diffusion

III. is active transport

the third diagram makes most sense to me

Answer 2

Transport processes is the major means by which Na+ is transported across the membrane of neurons,I because Na+ is so small it can freely diffuse into the cell.

What are membrane used for?

Membranes are used more and more often for the creation of process water from groundwater, surface water or wastewater. Membranes are now competitive for conventional techniques.

Thus, option "B" is correct.

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Related Questions

What is the surface of the Earth called?
Crust
Mantel
Inner core
Outer core

Answers

Answer:

crust

Explanation:

hi me again can someone pls answer me question?

Answers

Answer:

what question

Explanation:

the schematic below shows the vessels which carry blood away from the heart, and then return it to the heart, in the following order: arteries, arterioles, capillaries, venules, veins. label the vessels below with the correct description

Answers

A high pressure reservoir is the artery. The arteries are the blood vessels that carry the body's tissues oxygen-rich blood from the heart.

Your arteries and capillaries unite to form arterioles, which are tiny blood channels that convey blood away from your heart. By adjusting their diameter with the help of their muscles, they regulate your blood pressure and blood flow across your body.

The arteries and veins are joined by tiny, delicate blood tubes called capillaries.

A venule is a very tiny blood vessel that is part of the microcirculation that enables blood to return as from capillary beds and drain into the veins.

Veins return oxygen-poor blood from the tissues of your body to your heart.

The complete question is:

Direction of blood flow The schematic below shows the vessels which carry blood away from the heart, and then return it to the heart in the following order: arteries, arterioles, capillaries, venules, veins Label the vessels below with the correct description. Act as a high pressure reservoir. Contain valves to stop back flow of blood. O Drain blood from the capillary beds Exchange gases nutrients, and waste, O High resistance vessels that regulate blood flow.

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the schematic below shows the vessels which carry blood away from the heart, and then return it to the

Choose all options that apply. Which of the following medications are considered high-alert medications? | a) Heparin b) Insulin c) Ibuprofen d) Penicillin

Answers

Answer:

Insulin

Pls mark as brainliest answer if it helps you

What do plants produce during photosynthesis? F oxygen G light H magnetic energy J carbon dioxide

Answers

Answer:

yes

Explanation:

Part D Consider the results of each solution. Did any one solution work best? Could you combine or modify the solutions to develop a better method for removing the oil from the water?

Answers

No one solution worked best for removing oil from water. It is possible to combine or modify the solutions in order to develop a better method for removing the oil from the water, such as using a combination of physical, chemical, and biological methods in order to remove more of the oil from the water. Additionally, the effectiveness of the chosen method will depend on the type of oil, the specific contaminants present, and the environmental conditions of the water.

The monomers of Proteins are

A. Monosacharides
B. Nucleic Acids
C. Amino Acids
D. Fatty Acids

Answers

Answer:

The answer of the question is c

the answer is C) Amino acids

what major part of a typical food chain is more or less missing from the galapagos islands

Answers

One of the major food chain missing in galapagos Islands are nutritious food such as fruits and vegetables and this may be blame due to climate change.

What is food chain?

Food chain can be defined as transfers of matter and energy in the form of food from organism to organism. Most food chains start with green plants making food energy from the sun then an animal eats the plant and another animal eats that animal.

There are 2 types of food chains:

Grazing food chain Detritous food chain.

Therefore most of the major food chain with less missing in galapagos islands are nutritious food such as fruits and vegetables and this may be cause due climate change.

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characteristics of contaminated water

Answers

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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Which term is an example of force?
A. energy
B. mass
C. weight
D. Work.

Answers

Answer:

c.Weight is an example of force.

what does dimensions mean

Answers

Answer:

you want to know what the dimensions are?

the dimensions are the height (up and down) and the base length (dotted line)

differentiate the state of matter solid liquid and gas?

Answers

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states

Some types of gene are more highly conserved than others since their pathways or functions are fundamental to the growth and proliferation of all cells, including bacteria, and thus are likely to be highly conserved from species to species. For each gene functions, choose the one that is more likely to be highly conserved.
DNA replication
developmental pathways
hormone production
lipid synthesis for the plasma membrane

Answers

For each gene functions, the one thing that is most likely to be highly conserved is DNA replication.

Some types of genes are more highly conserved than others because their processes or activities are essential to the growth and proliferation of all cells, including bacteria, and are thus likely to be highly conserved across species. DNA replication is most likely preserved for each gene function.

The process of the duplication of the DNA strands in to two new strands is basically what we call as the DNA replication process. Replication is necessary because when a cell divides, the two new daughter cells must have the same genetic information, or DNA, as the parent cell.

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11. The random movement of particles like O2, CO2, or H2O across the membrane is called...________________.

Answers

Answer:

diffusion

Explanation:

these particles are in gases and so gases move from an area of high concentration (outside membrane) to an area of low concentration down a concentration gradient

Select the correct answer.
Which of the following conclusions can be drawn from the 2008 passage of Proposition 2?
A.
B.
O C.
O D.
California voters are largely vegetarians.
California voters believe that animals have many rights.
California voters oppose conditions they see as inhumane.
California voters feel that all animals should have spacious living conditions.

Answers

voted supported this ballot measure to prohibit the confinement of pregnant pigs, calves raised for veal, and egg-laying hens in a manner that does .

California Voters are largely Vegetarians?A recent study that compared variations in state-by-state adoption over a 15-year period shed light on how interest in veganism and plant-based diets has varied across the US."Plant-based diets are quickly gaining popularity, but the shift hasn't been gradual. In recent years, vegan diets have gained popularity quickly, and more meat-free goods have entered the market, according to Kelly Fairchild, a global business development manager at Ipsos Retail Performance.

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A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?

A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?

Rr x Rr

RR x rr

Rr x rr

RR x Rr

Answers

Answer:

2nd one

Explanation:

I believe this is correct. rr is a recessive homozygous.

which two of these locations are likely to experience the most chemical weathering?

1)cold and dry regions
2)cold and rainy regions
3)hot and humid regions
4)hot and dry regions
5hot and rainy regions

Answers

Answer: hot and rainy regions

Explanation: Chemical weathering is a process that needs water, and occur more rapidly at higher temperature, so warm, damp climates are best.

Answer:

3)Hot and humid regions

5)Hot and rainy regions

Explanation:

which picture represents North America in the winter? A B C Or D

Answers

I cant see the labels but I think its d if not its the one under the one on top right

A local gardener found small green aphids sucking the juices from a clover bush. This causes the clover bush to lose nutrients. What type of ecological relationship exists between the aphids and the clover bush?

Answers

Answer:

the circle of life is considered here

plant grows

bugs are born

bugs eat plants

plants regrows from seeds that are dropped

and that repeats!

Explanation:

Which was the earliest method used to determine stellar distances? A. supernovae B. parallax C. cepheids variables D. redshift measurement

Answers

Answer:

Parallax

Explanation:

Trust me I've done this

Answer:

parallax

Explanation:

Plato/Edmentum

Which was the earliest method used to determine stellar distances? A. supernovae B. parallax C. cepheids

With respect to proteins, the quaternary structure refers to the

Answers

Answer:

refers to the number and arrangement of protein subunits

What belongs there in the box

Answers

Answer:

Tissu

Explanation:

believe me my friend

PLZZZ HELP ME Which of the following is NOT a characteristic of plants?
O Create food through photosynthesis
O Multicellular organisms
O Incapable of movement
O Capable of moving by themselves

Answers

uh i would say the last option ?

Which is not a characteristic of plants, autotroph, unicelluar, eukaryotic, cell walls

Answers

Answer:

Unicellular

Explanation:

All plants are multicellular, unicellular plants do not exist.

Hope this helps dude

Increasing the alveolar ventilation rate will Group of answer choices increase the partial pressure of oxygen in the alveoli. decrease the rate of oxygen diffusion from the alveoli to the blood. increase the partial pressure of carbon dioxide in the alveoli. decrease the rate of carbon dioxide diffusion from the blood to the alveoli. have no effect on either the partial pressure or diffusion rate of gases.

Answers

Answer:

Increasing the alveolar ventilation rate will increase the partial pressure of oxygen in the alveoli.

Explanation:

Alveolar Ventilation rate is the rate of air flow in the alveoli of the lung during normal breathing. It is measured in milliliters of air per minute (mL/min). The alveolar ventilation rate is an important factor in determining the concentrations (partial pressures) of oxygen and carbon dioxide in the functioning alveoli.

A high rate of alveolar ventilation, would result in a rapid influx of oxygen-rich air and efflux carbon dioxide-filled air from the alveoli. This ultimately results in an increase in the concentration of oxygen and a decrease in the concentration of carbon dioxide within the alveoli.

Effects of alveolar ventilation on partial pressures of alveolar carbon dioxide and oxygen (PACO₂ and PAO₂)

If the alveolar ventilation rate is increased (and carbon dioxide production is unchanged), then the partial pressure of carbon dioxide in the alveoli, PACO₂ will decrease.

If the alveolar ventilation rate increases, then the partial pressure of oxygen in the alveoli, PAO₂ will increase.

2. A batch of 100 offspring is grown from a cross between a parent with a green stem and a mystery parent. All of the offspring have purple stems. What must be true
of the mystery parent?
O A The mystery parent must have the genotype ANLIANL.
OB. The mystery parent must have the genotype ANL/anl.
O c The mystery parent must have the genotype anl/anl.
OD Nothing can be determined about the genotype of the mystery parent.

Answers

Answer:

Explanation:

mystery plant has dominant genes that cause purple stems

Why is DNA important?
It produces the energy a cell needs to survive.
lt is responsible for creating the food for photosynthesis.
It coordinates with the cell wall to determine what enters and leaves a cell.
It is what makes each type of living creature different.

Answers

Answer:

It is what makes each type of living creature different

Explanation:

DNA is basically our blueprint, how we were designed. It's almost impossible for someone's DNA to be exactly the same. Given the exclusion of twins, there is always going to be something different about creatures, even when it comes to doppelgangers!

Hope this helps!

DNA is important as it is what makes each type of living creature different. The correct option is D.

What is DNA?

Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells.

Nucleotides are chemical building units that make up DNA. A phosphate group, a sugar group, and one of four different nitrogen bases make up these building components.

Nucleotides are joined together into chains, with the phosphate and sugar groups switching places, to create strands of DNA.

DNA is crucial for inheritance, protein coding, and supplying guidelines for life and its processes in all living organisms.

DNA controls a person's or an animal's growth, reproduction, and final demise. There are 46 chromosomes in total in each of a human cell's 23 pairs of chromosomes.

Thus, the correct option is D.

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Describe how the process of photosynthesis uses sunlight to produce glucose and how this molecule is broken down in the cell to produce energy / ATP.

Answers

Photosynthesis is the process by which b) glucose is synthesized. In the reactions of photosynthesis, carbon dioxide and water are the reactants. They are converted into glucose (sugar) and oxygen gas, and the reaction is powered by the sun's energy. Chlorophyll is the green pigment that absorbs light energy from the sun, utilizing this energy to drive the reactions in photosynthesis. The glucose that is created serves as food for the plants and for nearly every other living thing. Glucose stores the sun's energy in its chemical bonds and this energy can be accessed later when the glucose is broken apart through cellular respiration.

the organisms that feed on dead and decaying matter are called
A. Saprotrophs
B. Autotrophs
C. Heterotrophs
D. Parasite

Answers

The organisms that feed on dead and decaying matter are called Saprotrophs.

An organism that feeds on dead and decaying organic matter is called a saprotroph. These organisms are heterotrophic, which means that they obtain their food from other sources. They are important in the ecosystem because they break down dead organic matter and recycle it back into the soil, making nutrients available to other living organisms

Answer:

A. Saprotrophs

Explanation:

Saprotrophs are organisms that obtain their nutrients by feeding on dead and decaying matter. They play a crucial role in the ecosystem by decomposing organic material and recycling nutrients back into the environment.

These organisms secrete enzymes that break down complex organic compounds into simpler substances, such as sugars and amino acids, which they can absorb and utilize for their own growth and energy needs. Examples of saprotrophs include fungi (such as mushrooms and molds) and certain bacteria.

Unlike autotrophs, which can produce their own food through photosynthesis or chemosynthesis, saprotrophs rely on external sources of organic matter for their nutrition. They actively decompose dead plants, animals, and other organic materials, aiding in the process of nutrient recycling and decomposition.

Heterotrophs, on the other hand, are a broader category of organisms that obtain their nutrients by consuming other living or dead organisms. This includes saprotrophs, as well as other types of organisms such as herbivores, carnivores, and omnivores.

Parasites, meanwhile, are organisms that live in or on other organisms, known as hosts, and obtain their nutrients from the host while causing harm or damage to it. Unlike saprotrophs, parasites typically rely on a living host for their sustenance rather than feeding on dead and decaying matter.

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how does the respiratory system interact with the musculoskeletal system

Answers

Answer:

The muscular and nervous systems enable the involuntary breathing mechanism. The main muscles in inhalation and exhalation are the diaphragm and the intercostals (shown in blue), as well as other muscles. Exhalation is a passive action, as the lungs recoil and shrink when the muscles relax.

Explanation:

Answer:

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In a simple model of the supply and demand for pizza, when buyers' income increases, the price of pizza ______ and the quantity purchased ______. In the diagram of the unit circle what is tan theta on october 1, vista view company rented warehouse space to a tenant for $4,100 per month. the tenant paid five months' rent in advance on that date, with the lease beginning immediately. the cash receipt was credited to the unearned revenue account. the company's annual accounting period ends on december 31. the year-end adjusting entry needed on december 31 is: The equation T^2= A^3 shows the relationship between a planets orbital period, T, and the planets mean distance from the sun, A, in astronomical units, AU. if the orbital period of planet Y is twice the orbital period of planet x, by what factor is the mean distance increased? Dortmund Stockyard reports $906,000 in credit sales for 2018 and $804,670 in 2019. It has a $679,000 accounts receivable balance at the end of 2018, and $683,000 at the end of 2019. Dortmund uses the balance sheet method to record bad debt estimation at 8% during 2018. To manage earnings more favorably, Dortmund changes bad debt estimation to the income statement method at 6% during 2019. A. Determine the bad debt estimation for 2018. B. Determine the bad debt estimation for 2019. Round your answer to two decimal places. C. How does the new total oncollectible amount affect net income and net accounts receivable? a. Bad debt expense is lower, net income is higher, and not receivables are higher b. Bad debt expense is tower, net income is bigher and not receivables are lower Bad debt expense is higher, net income is lower and not receivables are higher d Bad debt expense is higher, net income is lower and net receivables are lower Western Company recently lost its entire inventory in an earthquake. The following information is available from its accounting records: Beginning Inventory: $5,000; Purchases: $18,000; Net Sales: $40,000;The company's average gross profit percentage is 40%. Using the gross profit method, a reasonable estimate of COGS for the past period would be:__________.1) $ 23,0002) $ 24,0003) $ 16,0004) $ 18,000 When a light bulb is rated at 60 W, it means thatA.each second, the bulb converts 60 J of electrical energy to heat and light.B.the bulb loses 60 W of potential energy each second.C.current is traveling at 60 m/s through the filament.D.the bulb uses 60 J of power when it is lit.The molecules of a gas are much farther apart than molecules in a solid or liquid.TrueFalse help pls ill give extra points Which challenge of globalization has been greatly assured by international jet travel Sorry can you pls help me anyone Which of the following was not a problem Americans faced during the great depression? (Brainiest) A. HungerB. UnemploymentC. Overpopulation In a large population of mesquite trees, 13% are infested with mistletoe. A biologist selects a random sample of 25 mesquite trees from this population. About how far do you expect the sample proportion of infested trees to vary from the true proportion, on average?(a) 0.005(b) 0.026(c) 0.067(d) 0.072(e) 0.130 What effect did removing Saddam Hussein from power in Iraq have on the country? breach of contract is refusal or failure to comply with the terms of a contract. if the seller breaches the purchase contract, the buyer may do all of the following except a) rescind the contract and recover the earnest money. b) sue the seller for specific performance. c) sue the broker for nonperformance. d) sue the seller for damages. Suppose a company determines that it costs $3200 to build 40 items, and it costs $4950to build 75 items. They would like to have a Linear Cost Equation in Slope-Intercept form. What shouldbe x and what should be y? A phone company charges for service according to the formula C(n) = 23 + 0.2n, where n is the number of minutestalked, and c(n) is the monthly charge, in dollars.Find the rate of change. Which statement is true of this graphed function? The residents asked the town planners to propose some possible solutions that will address their transportation concerns and reduce the amount of CO2 released into the atmosphere. Of these, which is your favorite solution: Question 3 options:Restrict the use of private vehicles powered by fossil fuels on public roads.Promote vehicles powered by renewable energy sources to harvest the crops and get them to market. Kyle went to soccer lessons. He was charged $23.75 for one session. He gave the instructor a 15% tip. How much did Kyleleave for a tip? WILL GIVE BRAINLIEST ASNWER!! Which equation is the inverse of 2(x - 2)^2 = 8(7 + y)?