can oxygen diffuse across the cell membrane?

Answers

Answer 1

Answer:

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion or a type of diffusion known as osmosis. diffusion is one of the principal method of movement of substances within sales, as well as the method for essential small molecules to cross the cell membrane.

Explanation:

Hope this helped Mark BRAINLIEST!!!


Related Questions

which two adaptations of herbivorous enables them to digest cellulose​

Answers

Answer:

Cellulose Digestion in Herbivores

By means of the symbiotic gut bacteria, cellulose can be digested by herbivores with the help of monogastric digestion. Herbivores are less efficient than ruminants in the case of extracting energy from the digestion of cellulose. Here, cellulose is digested by microbial fermentation.

Explanation:

Their molar and premolar teeth help to crush and grind the food and bacteria present in their caecum help in the digestion of cellulose.

How does herbivorous digest cellulose​?

Cellulose is a polysaccharide made up of repeating glucose units linked by β-1,4-glycosidic bonds, only herbivores are able to digest this biomolecule.

Herbivores have molar and premolar teeth, this flat molars (back teeth) with rough surfaces, which are used for chewing up tough plant tissues. Ruminants have rumen having bacteria which are enabled animals to digest cellulose.

Inside the rumen of cattle, certain bacteria and protozoans are able to secrete the enzymes, which break the cellulose and convert it into glucose units to provide energy.

Therefore, teeth and bacteria two adaptations of herbivorous enable them to digest cellulose​.

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16. Which of the following could describe a population that is decreasing
in size?
The birth rate and death rate remain the same
The death rate is becoming lower than the birth rate
The death rate is constant and the birth rate is increasing
The death rate is becoming higher than the birth rate

Answers

Answer:

The death rate is becoming higher than the birth rate.

Explanation:

Birth rate means the population increases, and death means decreases.

Answer:

The death rate becoming higher than the birth rate

Explanation:

if the death rate is becoming higher and the birth rate is getting lower then the population will die off and the birth rate would decress.

What does helicase do?

Answers

Answer:

Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.

Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid

Look at the overall view of the onion root tip. Which phase does it look like most cells are in? Why are most cells in this phase?

Answers

Hello. You did not present the image to which this question refers, which makes it impossible for this question to be answered. However, I will try to help you in the best possible way.

I believe you are looking at cells from the tip of the root, in an experiment where the tip of the root of the onion was cut. To redo the tip of the root, the onion cells will undergo mitosis, which is the cell division where a cell originates from two identical cells.

Mitosis has five phases and all of them can be seen in the onion root cells according to the following characteristics:

1. Interphase: it is the moment when the cells increase in size and intensify their metabolic activity. The cells of the onion root will be in this phase when they appear as a completely dark and filled circle.

2. Prophase: The chromosomes condense and become visible and the cell membrane is flawed. In the cells of the onion root, you will be able to see this phase in cells that appear as an irregular circle, with a tangle of lines scattered inside.

3. Metaphase: The chromosomes condense further and connect to the spindle lines that are in the center of the cell. In the onion root cells, you will identify this phase in circles with a tangle of lines that are concentrated in the center of the cells.

4. Anaphase: The centromeres are separated and the sister chromatids migrate to the poles of the cell. You will be able to see this phase in cells that have a concentration of lines at both ends of the cell.

5. Telophase: the chromosomes are decondensed and the cell membrane is formed again while the cell separates into two. You will see this phase with the presentation of two cells.

To improve your understanding, the attached figure below shows how the cell appears in each phase.

Why did the Indian railways, relplace 'kulhads' by paper cups ?​

Answers

Answer: The Indian Railways plan to replace the plastic cups at all railway stations to kulhads for the promotion of an environmentally-friendly India that is plastic-free. ... Kulhads in railway stations was introduced in 2014 by the then Union Railways Minister, Shri. Lalu Prasad Yadav.

Hope this helps!

the Indian railways plan to replace the plastic cups at all railways station to kulhads for the promotion of an environmentally friendly India that is plastic free


What is a cell?
a. The smallest unit of the atom
b. The smallest unit of life
c. The largest unit of life
d. The smallest unit of a
population

Answers

Answer:

b

Explanation:

What organic molecule contains a carboxyl functional group and an amino functional group?

A. DNA

B. carbohydrate

C. lipid

D. protein

Answers

Those functional groups are characteristic of amino acids, which are the building blocks of proteins. Thus, the correct answer would be D.

The basic amino group (NH2), the acidic carboxyl group (COOH) and the specific organic R group (or side chain) for each amino acid make up an organic molecule known as an amino acid. Thus, option D is correct.

What is Structure of protein?

The linear arrangement of amino acids within a peptide or protein constitutes its fundamental structure.

Conventionally, a protein's main structure is described from amino-terminal end to carboxyl-terminal end. Ribosomes in cells are most frequently responsible for protein production.

Peptide bonds are created when amino acids condense to form protein structures. The main structure of a protein is its arrangement of amino acids.

The dihedral angles of the peptide bonds determine the secondary structure, while the folding of protein chains in space determines the tertiary structure.

Therefore, a protein organic molecule contains a carboxyl functional group and an amino functional group.

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What type of molecule is produced by the ribosome?
A. DNA
B. RNA
C. protein
D. all listed

Answers

Answer:

The correct answer is - C. protein.

Explanation:

Ribosomes are biological molecules that are made up of RNA and proteins. These molecules produce protein molecules with the help of mRNA by the process of translation. These molecules are called the factory of protein or protein synthesis site.

The RNA that is present in these molecules is ribosomal RNA. These are attached to the other cell organelles called endoplasmic reticulum used the protein to check and modify them.

When a volcano erupts, such as the Kilauea volcano in Hawaii, what do you think happens to the surrounding ecosystem? Explain how you think disruptions to the physical and biological components of the ecosystem would affect local populations.

Answers

Answer:

the surrounding ecosystem is nearly or completely destroyed this changes the physical and biological components of the system by killing any biological life and reshaping all structures with magma. this will affect the population by killing anything living haunting life for centuries until new life can start to form such as lichens to break down the hardened rocks nutrients into soil for life

The volcanic eruption of Kilauea volcano in Hawaii can have prolonging effects on the water and air quality, and in the livelihoods of the natives living in the surrounding region.  

• The volcanic ash has been known to coat the highways, collapse roofs, ground airplanes, and put the natives at threat of developing respiratory ailments.  

• The instantaneous influence of the eruption would be the destruction of wildlife and plant species.  

• The pyroclastic flows, lava flows, and Kilaeua's discharge of toxic sulfur dioxide can lead to famine and ultimately the loss of livestock and other animals.  

Thus, serious consequences would result due to the eruption of Kilauea volcano.

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Giving 10 points away please help me with this question ASAP!!!!

Answers

Should be D) I think.

Given the following sequence of DNA, what molecules would be paired with it on the complimentary (replicated) side? A C G T C C G T A A T C

Answers

T G C A G G C A T T A C

What did Mendel discover
that true-breeding pea plants
do when allowed to self
pollinate?
A. They seldom have offspring with the
same traits as the parent plant.
B. They always have offspring identical to
the parent plant.
C. They always have offspring that
differed from the parent plant.

Answers

Answer: B. They always have offspring identical to the parent plant.

write down at least twenty things that animals contribute to your life and the lives of those around you. Once you have the list, select five and describe them in detail. Include the following in your description: What is the item, and how does it relate to animals? What role does that item play in your life and the lives of those around you? How was that item produced? Describe the animal (size, type, what they feed on, how they live, etc.). Your description of each item should be about 30 words long, for a total of at least 150 words. You will need to use your skills of observation and will also need to do some research on your own. Please submit the list and the descriptions.

Answers

Answer:

Trust me i feel u  and understand so heres my answer so that u can feel at ease

Explanation:

Food- Most Ag animals, (Such as farm animals) Are mainly a source of food. This role is vital to my life and everyone else because Food is one of the major things we need for life. This item is produced through farming and Manufacturing. The main contributors to this would be Cows, Sheep, Pigs and Chicken.

Clothing- Some animals fur or Wool can be used as a type of base material for clothing. This Role is vital to my life and everyone else because Clothing is one of the major things we need for life. This item is produced through Shearing, Hunting and/or Manufacturing. The main contributors would be Sheep, but sometimes game animals (such as bears or deer) are used too

Milk- Cows and Some goats Makes milk. This is an important role because Milk is used in a variety of foods such as Cakes, Cereal, Oatmeal, etc. The main contributor would be Cows, however some times Goats milk can be used as well. Milk is mainly processed through pasteurization

Pets- Some animals (cats, dogs, birds, etc.) Can be used as Pets. This role is important because Pets are Stress relievers and can help mentally with what could go on around the world. Most pets are breed through selective breeding. The main contributors are Cats, Dogs and Fish.

Butter- Animal fat can be used to make butter. This is a important role because butter is also used in a variety of foods, such as cakes, Meats, etc. Animal fat left over from butchering animals can be process into butter. Most ag animals that are used for meat, (cows pigs) are used. A second way to make butter would be to use goats milk.

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Which statements describe hormones in plants? Check all that apply.


Cutting stems can stimulate hormones to start lateral leaf growth.


Some tropisms are controlled by hormones.


Cells grow faster in areas where auxin is concentrated.


Hormones help buds form and grow in the winter.


Auxin is the only hormone involved in plant development.


(i know that the first 4 are not right and neither are A, B, and D (1, 2, 4)

Answers

Answer:

The correct statements are: 1, 2, and 3.

Cutting stems can stimulate hormones to start lateral leaf growth.

Some tropisms are controlled by hormones.

Cells grow faster in areas where auxin is concentrated.

Explanation:

Plant hormones such as Auxins perform various roles and helps in the growth and development of the plants. Cutting the main stem of the plant stimulates the auxin hormone and which stimulates the lateral elongation growth of the leaf growth.

Some tropisms are controlled by the hormones such as phototropism by auxin as a high concentration area of the auxin causes cell growth in a particular area and the concentration of auxin is stimulated by light.

What is the most popular gamefish in Florida

Answers

Answer:

Sailfish

Explanation:

Answer:

Sailfish.

Explanation:

Which of the following describes the location of the polar climate zone?


1. Between the tropical and the temperate zones
2. Farthest from the equator
3. From away from the north pole and south pole
4. Closest to the equator

Answers

Answer:

closest to the equator because the equator divides our planet into the northern and southern hemisphere and is located at 0° latitude but halfway line between the North and South Pole which would be near the more arctic areas

Answer:

a

Explanation:

PLZZ HELP AND DONT GIVE ME A LINK IT DOESN'T WORK
Explain the idea of "survival of the fittest" with regards to a population of beaver in a lake in which some have larger incisor teeth and others have small incisor teeth.

Answers

Answer:

Large teeth are used to the advantage of the beaver to make their shelter and chew through wood in order to make said shelter, so a beaver with larger teeth is more likely to have a better shelter, and therefore survive longer, reproduce more and help tip the population to have larger teeth. The opposite, however, will happen with beavers with smaller teeth. This leads to evolution.

Answer:

I need 5 Brainliest before I can become expert

Explanation:

5. The cell fails checkpoint 2. It tries to repair its DNA, but can't. The cell performs apoptosis.
This statement is true for a [Select]

Answers

Answer:

False

Explanation:

Because it cant repair itself

A scientist crosses two black iguanas and gets the following results of the offspring: Some
are really dark black, some are dark shades of gray, some are medium gray, some are light
shades of gray, and some are white. What type of inheritance pattern did he observe?

Answers

Answer: polygenic inheritance

Explanation:

Someone please help! Its due monday and it has to be finished today! Please ^n^

Answers

Answer:

look below

Explanation:

limit clearing of trees for farmland - deforestation. support goverment in developing clean energy - fossil fuels. low soil quality - fertilze with organic matter

PLZ help

Fuel-cell cars use hydrogen gas and release ___ into the atmosphere

A. Oxygen gas
B. Carbon dioxide
C. Fossil Fuels
D. Water vapor

Science (A P E X)

Answers

Answer:

D. Water vapor

Hope this helps!

Answer:

D water vapors

Explanation:

which of the following produces more energy for the next trophic level?
A. humans
B. grasshoppers
C. snake
D. spiders

Answers

i thinks it’s grasshoppers or humans, not sure

no links please!!!!!

Which of the following is a result of continental drift?

It causes climate change, which puts selective pressure on organisms.
It results in intentional introduction of invasive species, leading to competition.
It causes the buildup of atmospheric carbon, leading to climate change.
It results in habitat fragmentation, due to construction of new buildings.

Answers

Answer:

It results in habitat fragmentation, due to construction of new buildings

Write the name of the organs found in middle ear with their function.​

Answers

Answer:

tympanic cavity .. The primary function of the tympanic cavity is to offset the decrease in acoustic energy that would occur if the low impedance ear canal air directly contacted the high-impedance cochlear fluid.

Explanation:

What are chromosomes? When do chromosomes form?

Answers

Answer:

Chromosomes are coiled structures made of DNA and proteins. They contain genes, which basically code for proteins. Chromosomes form after DNA replicates. In other words, chromosomes form as DNA becomes foiled during the process of prophase I, thus creating chromosomes.

Hope this helped! :)

Which part of the brain keeps you from losing your balance when you are standing on a skateboard?

Answers

The cerebellum controls balance

Explain Evolution as SIMPLY as you can IN YOUR OWN WORDS - but using all of these terms:
fit or fitness
natural selection
trait
population

Answers

Answer:

Hope this helps?

Explanation:

The process of natural selection which are believed to have developed the trait or fitness of other organisms through large population

Why can enzymes be used over and over again

Answers

Answer:

Enzymes are biological catalysts. They catalyse biochemical reactions. They increase the rate of reaction. They do not chemically react or get utilised in the reaction so enzymes can be used over and over again.

Which resource is a renewable resource Coal,gemstones,metal,trees

Answers

Answer:

trees

Explanation:

Answer:

Just took the quiz , It's D trees

Explanation:

Trust

Which of the following describes a function of the endoplasmic reticulum within a cell?

intracellular transport
lipid synthesis
protein modification
DNA storage

Answers

Answer:

  lipid synthesis

  protein modification

  intracellular transport

This is if you have to pick more than one

Explanation:

Because i got it wrong

The most important function of the endoplasmic reticulum is intracellular transport within the cell but ER also performs other functions.

What is intracellular transport?

The Endoplasmic Reticulum transports nutrients from one part of the cell to the other within the cell.

What is Endoplasmic reticulum?

The endoplasmic reticulum (ER) is a continuous membrane structure in eukaryotic cells that forms a series of flattened sacs inside the cytoplasm.

There are two forms of ER that are commonly found:-Rough ER, which has  ribosomes embedded within its structure, giving it a rough appearanceSmooth ER, which lacks these ribosomes and hence appears smooth.

The endoplasmic reticulum (ER) plays an essential role in protein synthesis, folding, modification, and intracellular transport.

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