HELP!!!!!!!!!! Which of the following statements regarding membrane transport is false? I will mark brainliest!!!!!!!

Answers

Answer 1

Answer:

It is the 3rd one I believe


Related Questions

Explain why your model improves upon the student’s original model. How would your model help someone who was learning about photosynthesis for the first time? Plato question

Answers

Answer:

Due to inclusion of more steps of photosynthesis.

Explanation:

My model is more advance than the student's original model which provides more information about the process of photosynthesis to the learners by explaining various parts of photosynthesis. My model presents the various steps of photosynthesis in a very efficient way with the help of including some extra parts. The student's original model is not more advance so it can't provides more information about the process of photosynthesis so that's why my model provides more information about photosynthesis.

Answer:

This model shows all the major molecules involved in the Calvin cycle and how they change at each stage of the process. This added detail would clarify that the Calvin cycle is a series of complex steps. The student’s original model didn’t show this breakdown at all, and it shows only the final products. This model also shows the number of each molecule created, which the original model doesn’t do.

Harry is doing a research project on the movement of plants from the ocean to land. He leaned that plants evolved
vascular tissues, which enabled them to pull water from the ground and survive on land. Which is most likely
another adaptation that contributed to the success of land plants?

cell walls?
chloroplasts
waxy cuticle
gametes

Answers

Answer:

Waxy Cuticle

Explanation:

Waxy Cuticle retains water. It's the closest in terms of surviving on land. For instance, the plants living in water do not need waxy Cuticle to retain or maintain water. The plants on land requires waxy Cuticle because the temperature is hotter than in the water and they are at higher risk of loosing water during hot seasons and climate. waxy Cuticle aids in their water retention allowing them to adapt to live on land.

Sheets composed of two layers of amphipathic molecules arranged with the hydrophilic groups on the surface and the hydrophobic groups buried in the center that form in water are called A) micelles. B) liposomes. C) vacuoles. D) bilayer membranes. E) none of the above

Answers

Answer:

D) bilayer membranes

Explanation:

Two lipidic bilayers compose the cell membrane. There are also proteins and glucans incrusted in between. Lipids are amphipathic molecules with hydrophilic heads -negatively charged phosphate group- and hydrophobic tails. Lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane. Membranes are fluid, which means that the composing molecules can move through them.

Lipids can easily change places with other neighboring lipids by lateral diffusion in the same layer. This is passive diffusion, which means that it does not need energy to happen.

Lipids can also diffuse transversally to the other layer but not as easily as lateral diffusion. Jumps between monolayers are infrequent as the lipidic polar heads meet the fatty acid barrier.

There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.  

Equilibrium is when the concentration is the same throughout an entire system. Explain how a cell reaches equilibrium in all three types of solutions (hypertonic, hypotonic, and isotonic).

Answers

It is pertinent to understand what hypertonic, hypotonic, and isotonic solution means before setting out to explain how a cell reaches equilibrium in each type of solution.

A hypertonic solution is one whose solute concentration is higher than that of the sap of a cell that is immersed in it.A hypotonic solution is one with the same solute concentration as that of the sap of the cell immersed in it.An isotonic solution has a lower solute concentration than that of the sap of the cell immersed in it.

In biological systems, water molecules move by osmosis from the region of higher water potential or lower concentration of solutes to the region of lower water potential or higher concentration of solute. An equilibrium is reached when there is no net movement of water between two sides. Hence;

A cell placed in a hypertonic solution will lose water to the surrounding solution until an equilibrium is reached. This means that such a cell will end up shrinking (wilting) or even dying due to loss of water from the cell sap.A cell placed in a hypotonic solution will gain water from the surrounding solution until there is no net movement of water anymore. Such a cell might become turgid or even burst out its cell content.A cell placed in an isotonic solution will neither gain nor lose water because the cell sap and the surrounding solution have equal solute concentrations.

More about osmosis here: https://brainly.in/question/1213189

Answer:

A cell placed in a hypertonic solution will lose water to the surrounding solution until an equilibrium is reached. This means that such a cell will end up shrinking (wilting) or even dying due to loss of water from the cell sap.

A cell placed in a hypotonic solution will gain water from the surrounding solution until there is no net movement of water anymore. Such a cell might become turgid or even burst out its cell content.

A cell placed in an isotonic solution will neither gain nor lose water because the cell sap and the surrounding solution have equal solute concentrations.

Explain osmosis using this image

Answers

Answer:

A liquid moving from an area of low concentration, to an area of high concentration through a semi-permiable membrane.

Explanation:

Hope this helps :)

A _____ country has high population density.

A: Densley populated country
B: Sparsely populated country
C: Open country
D: Overpopulated country

Answers

Answer:

A. A Densley populated country.

Explanation:

Questions for Activity 3: Making Molecular Models of Aerobic and Anaerobic Respiration

Text BoxDraw what you think the models of aerobic and anaerobic respiration would look like if you constructed them using models like in figures 3-6

Answers

kaka ddjzomssomx dmdxjsomdmsxk

Irineu vc não sabe nem eu

sksosmmsos!s s s s s. s sim cofmc. kc c. ocmc c. ximc.

heheheheheheheheheheeheheheeheh

sou toxic

toma trou xa deu mtos pontos atoa kakakakakaja

Which of the following represents a tragedy of the commons?
Plastic trash in the neighborhood park
Two hospitals for the town's residents Trash pile in a person's backyard
Not enough fruit at a local market​

Answers

Tragedy is when a person feels distress due to some event or something. There can be various tragedies a person might face in his life.

In a persons life tragedy might represent an event which causes an unhappy feeling or emotional distress.

This also represent a situation which every one wants to avoid, no one welcomes a tragic event with happiness or joy.

The most annoying tragedy is a trash pile which is stinking in the backyard. A person will have to remove the pile so that the there is less pollution.

The correct answer is Trash pile in a person's backyard.

Learn more at https://brainly.com/question/24384533

Answer:

it is Plastic trash in the neighborhood park

Explanation:

tragity of the colloms means a problem in which every individual has an incentive to consume a shared resource, but at the expense of every other individual, depleting or spoiling the shared resource by their collective actions. SOO YEA SORRY ABT THAT OTHER GUY >:)

Sometimes the most practical way to do an experiment is not to perform it in an animal, but to look at cell responses in culture. Cells from mice, humans, and other mammals have been used to establish cell culture lines that have been very important for research. You are studying a novel water-soluble mouse hormone. You know cell culture can be a practical model to reveal protein function, so you apply the hormone to yeast cells, but nothing happens. What is a likely explanation for why nothing happened in your experiment

Answers

Answer:

Yeast cells likely do not have receptors that bind to this specific water-soluble mouse hormone

Explanation:

Receptors are molecules capable of binding specific signaling molecules (i.e., ligands). For example, steroid receptors can only bind to specific steroid hormones (e.g. estrogen, progesterone). Plasma membrane receptors are protein receptors that bind to water-soluble ligands. These receptors are embedded in the cell plasma membrane and usually contain several transmembrane domains. Examples of cell membrane receptors include G protein-coupled receptors (GPCRs), enzyme-linked protein receptors and ion channel receptors.

Water pollution is an environmental factor due to rapid population growth.(True or False)?​

Answers

Answer:

False

Explanation:

Water pollution is caused by factory workers

Does anyone know the answer for the question four?

Answers

Answer:

I think it's A

Explanation:

it is because the populations of trees are decreasing as deforestation continues, so there is less resistance to greenhouse gases. please correct me if I'm wrong

how does a classification key help identify an organism , help me please

Answers

Answer:

Classification keys are tools that provide a means to correctly identify different organisms, based on observable traits. A dichotomous key is a listing of specific characteristics, such as structure and behavior, in such a way that an organism can be identified through a process of elimination.

The vertebrate digestive system consists of a two-way tube with
A. a separate mouth and anus and accessory organs.
B. a one-way tube with a separate mouth and anus and accessory organs.
C. a two-way tube with a separate mouth and anus.
D. a tube with a single opening that serves as mouth and anus.
E. a one-way tube with a separate mouth and anus and no accessory organs.

Answers

[tex]Hello![/tex]

It's option B.

I'm sure about that.

The vertebrate digestive system consists of a two-way tube with...[tex]ANSWER:[/tex]

B. A one-way tube with a separate mouth and anus and accessory organs.

how is the cell membrane adapted to it's function

Answers

Cell membrane is made up of Lipid Bilayer which are fluid in nature , means they move continuosly , due to this fluid nature they are selectively permeable to compounds.

Which of the following statements is correct with respect to the photosynthetic pathway of grass or a cactus?

Answers

Answer:

Where are statement

Explanation:

Please tell

what is the term for female reproductive cell ?

Answers

Answer:

female reproductive call are called ova

Egg is the term for a female reproductive cell.

What is fermentation

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Answer:

Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes.......I am sure this is helpful for you....And have you a great future.....study well plz....first you read your book.....

If eukaryotes all came about due to endosymbiosis, what would result from that?

Answers

your question isnt clear. but endosymbiosis means earlier bigger prokaryotes engulfed prokaryotes that carried out aerobic respiration(later became mitochondria) and other prokaryotes that carried out photosynthesis(later became chloroplasts). these “now” mitochondria and chloroplasts “realised” that they couldnt survive without the bigger prokaryotes that engulfed them hence they remained part of the larger prokaryotes. hope that explains it.

Endosymbiosis occurs when larger prokaryotes envelop prokaryotes that perform aerobic metabolism (later known as mitochondria) and prokaryotic cells that do photosynthesis.

These "now" mitochondrion's "came to realise" that they really can not live without the bigger prokaryotes that swallowed them, and therefore they stayed with them. 

Learn more:

https://brainly.com/question/15829977?referrer=searchResults

three types of transpiration​

Answers

Answer:

1) Stomatal Transpiration

2) Lenticular Transpiration

3) Cuticular Transpiration

OAmalOHopeO

What does red bone marrow make? HELP ASAP PLSSS

Answers

Answer:

it makes blood cells. :) have a nice day!

It is involved in the production of blood cells

is when a system is in motion but is balanced because it experiences no net change.
A. Dynamic equilibrium
OB. A convection current
OC. Static equilibrium
D. Co-evolution

Answers

Answer:

dynamic equilibrium is the answer.

Dynamic - motion

Equilibrium - no net change

Name five types of evidence that support the theory of evolution. Write one sentence for each, explaining why it demonstrates evidence. (10 points)

Answers

The five evidences that support the theory of evolution are: Fossils, Anatomy, Embryology, Molecular Biology (or Biochemistry), and Biogeography.

Fossils show the physical change in a species over time, suggesting evidence for evolution. For an example, we can trace the origins of dolphins and whales all the way to a four-legged, dog-like hoofed mammal from about 50 mya. These mammals were fish eaters and so decided to spend a lot of time in the water. In fact, they spent so much time in the water, that in a few million years, they evolved a longer body and webbed feet. Then another few million years passed and they swapped their webbed feet for flippers and swapped their tail of a fin. Eventually, we get a fish-like mammal that once walked on land.

For anatomy, or structures, there's three types of structure comparisons: Homologous structures, Vestigial structures, and Analogous structures (or Convergent Evolution). Homologous structures show similarities between the structures between species, but serve different purposes. For an example, all mammals share common features within their arms, such as having 5 fingers. However, they serve different purposes, from whale fins for swimming, to bat wings for flying, to human hands for grabbing and for using tools.

Vestigial structures were structures that once served a purpose and have been reduced in size/power to the point where it's useless. For an example, large theropods such as the T. Rex spent so much time evolving more jaw muscles and biting power, that they sacrificed their arm muscles for such power. This explains why their arms were so short.

Another example would be ratites, flightless birds such as ostriches, emus, and cassowaries (penguins and kakapos are from a different group). They spent so much time evolving powerful legs as well as evolving in size, that there was no need to fly when they could just run with their improved legs. And also the fact that they're too heavy to even fly anyways.

Analogous structures is the similar functions of structures between species, but have separately evolved these functions. For an example, the wings from insects, birds, bats, and pterosaurs are very similar in shape and can be used to fly, but they've evolved separately. For an example, birds use feathers to fly while bats and pterosaurs use/used (pterosaurs are extinct) membrane between their bones to fly. Although they do have strikingly similar evolutionary histories, with their ancestors starting off as tree dwellers, they've evolved their flight abilities separately during different earth periods.

Embryology is evidence for evolution by using embryos from different species to suggest a common ancestor. For an example, we can prove that we're more related to whales than to fish by using embryos. The fish embryo will evolve gills while the embryos of humans and whales will not, since we do not breath by extracting oxygen from water.

Molecular biology is a more recent way of providing evidence for evolution. By taking the DNA from cells from different species, we can get an estimate of how related one species is to another. The more similar amino acid sequences are between species, the more recent their common ancestor is. For an example, by comparing amino acid sequences between humans and chimpanzees, we get an estimated amount that we once shared a common ancestor seven million years ago. Without molecular biology, we would still be digging for fossils to find that number.

Biogeography is the geographic distribution of species on earth that can be explained by evolution. For an example, we can tell that Australia separated first from Pangea rather than Asia or North America since Australia doesn't have bears while the Asia and North America do, with China having pandas and North America having brown and black bears. And also with the fact that Australia is the only continent with monotremes (egg-laying mammals like the platypus).

Similar to biogeography, there's also direct observation, which is evolution that has happened in our own eyes. An example would be the underground London mosquito. Mosquitoes usually target birds like pigeons. But after an underground tunnel was built in London, some mosquitoes managed to get inside and instead of birds, they targeted, mice, rats, and of course, humans. After only a few hundred years, a mosquito from the underground tried to mate with another mosquito from land and they could not, simply because they were different species. This shows that their new choice of feeding on mammalian blood has actually altered their DNA and created a new species, during the existence of humanity!

Each piece of DNA called a
carries
the code for
human characteristic. The whole human code
contains about
sections or

Answers

Answer:

sorry dear!! can't understand your question. Can you please rewrite this question^_^

Answer:

what is the question

Explanation:

A woman took contraceptive pills to prevent pregnancy. The pill inhibits secretions of the Follicle Stimulating Hormone(FSH) from the pituitary gland. Explain the effects of taking contraceptive pills on the menstrual cycle.

I need an answer now... Pls help​

Answers

lighter bleeding, and others may skip their periods entirely. An abnormal lapse in monthly menstruation

healthline

Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then, the remaining liquid is heated to remove the water, leaving a residue of substance B. Which statement about substance A and substance B could be correct?
Substance A is rice, and substance B is sugar.
Substance A is rice, and substance B is sugar.

Substance A is sugar, and substance B is instant coffee.
Substance A is sugar, and substance B is instant coffee.

Substance A is sand, and substance B is alcohol.
Substance A is sand, and substance B is alcohol.

Substance A is alcohol, and substance B is salt.

Answers

The correct answer would be that substance A is rice, and substance B is sugar.

For substance A to be filtered out, it means that A is a water-insoluble substance and for substance B to be recoverable by evaporating off the water, it means that B is water-soluble.

Thus, A can neither be sugar nor alcohol because neither can be recovered by filtration. Also, B can neither be coffee nor alcohol because they can not be recovered as residue through evaporation of water.

Therefore, the only correct answer is that substance A is rice, and substance B is sugar because rice can be filtered out from water while the water-soluble sugar can be recovered by evaporating the water.

More about separating mixtures here: https://brainly.com/question/2827008

Answer:

substance A is rice, and substance B is sugar.

Explanation:

Certain antibacterial drugs such as trimethoprim and the sulfonamide drugs (e.g., sulfadiazine, sulfamethoxazole) selectively inhibit the synthesis and function of nucleic acids and certain essential amino acids by impairing the production of ______ in bacterial cells.

Answers

Answer:

Folic acid

Explanation:

Antibacterial drugs helps fight the bacterial infections. these drugs helps release essential amino acids by impairing the production of folic acids in bacterial cells. Bacteria infection may get severe and hazardous if they are leave untreated.

what is photosynthetic pigment's​

Answers

Photosynthetic pigments are the only pigments that have the ability to absorb energy from sunlight

Answer:

A photosynthesis pigment ( accessory pigment ; chloroplast pigment ; antenna pigment ) is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy neccessary for photosynthesis.

Explanation:

hope it is helpful to you

MiraculousNisha

A man has three sons.

What is the chance of his next child being a son?

Answers

50%, his previous children’s gender doesn’t effect the probability of his future ones.

Which structures of this organism work together to carry out all of its life
functions?

Answers

Answer:

nucleus

Explanation:

• Categorise the materials of the following productes into 'can be recycled' and 'Cannot be recycled:

Telephone instrumentes, plastic toys Cooker handles, carry bages, ball point penos, plastic bowles plastic covering on electrical wired plastic chairs, electrical switches.

Plz give me soon answer plzzz

Answers

Answer:

Telephone instrumentes, plastic toys Cooker handles, carry bages, ball point penos, plastic bowles plastic covering on electrical wired plastic chairs, electrical switches.

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