Why is it important for each cell to be surrounded by a cell membrane that prevents large molecules from leaving the cell?​

Answers

Answer 1

Explanation:

because cell membrane protect the cell


Related Questions

what color indicates the presence of a high level of simple sugars

Answers

Answer:

Brown

Explanation:

Greens the lowest while Brown is the highest

what makes a cell responsive to a particular hormone?

Answers

The presence of a receptor for that particular hormone

Why is human blood red and not blue such as squid & snail blood?
Hemoglobin contains copper that gives the blood the red color when exposed to
oxygen
Hemoglobin contains magnesium that gives the blood the red color when
exposed to oxygen
Hemoglobin contains iron that gives the blood the red color when exposed to
oxygen

Answers

Answer:

it contains iron that gives it the red color when exposed to oxygen

Human blood-red and not blue because Hemoglobin contains iron that gives the blood the red color when exposed to oxygen. The correct option is c.

What is hemoglobin?

Hemoglobin is a red color pigment that is present in the blood. It contains a heme group that carries oxygen into the body and carries carbon dioxide outside the blood. It is red and in some animals, it is blue because of copper.

Hemoglobin is made up of four protein chains that each bind an additional ring-shaped chemical structure called heme. Our red blood cells are red because of the heme groups in hemoglobin. In turn, our blood is red because of the millions of red blood cells that it contains.

Therefore, the correct option is c. Hemoglobin contains iron that gives the blood a red color when exposed to oxygen.

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how is the structure of a leaf optimized for photosynthesis

Answers

Answer:

- The upper epidermis of the leaf is transparent, allowing light to enter

- They have a large surface area to volume ratio, allowing more light to enter

The upper epidermis of the leaf is transparent, allowing light to enter and they have a large surface area to volume ratio, allowing more light to enter.

What is responsible for photosynthesis to occur?

The mesophyll cell is responsible for photosynthesis occurs. The majority of the chloroplasts and the primary site of photosynthesis are located in the palisade layer. The area of storage and gas exchange is the airy, spongy layer. The stomata control the water and carbon dioxide equilibrium.

For gaseous exchange and photosynthesis, leaves are suited. Since they have a wide surface area and stomata, which enable carbon dioxide to enter the leaf and oxygen to exit, they are well-equipped for photosynthesis.

Chloroplasts, which is known as the house the chlorophyll in plants, are where photosynthesis occurs. The thylakoid membrane, a third inner membrane that creates lengthy folds inside the chloroplast and is bordered by a double membrane, is present inside chloroplasts.

Therefore, The upper epidermis of the leaf is transparent, allowing light to enter and they have a large surface area to volume ratio, allowing more light to enter.

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Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
оо
B. It is better for the cell if most molecules are prevented from
entering.
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
SUBMIT

Answers

Answer:

the answer is B

Explanation:

bcuz its right

Match each part of the respiratory system with the correct label.

Answers

Answer:

1 Nose

2 Mouth

3 Pharynx

4 Larynx

5 Trachea

6 Bronchi

7 Bronchioles

8 Alveoli

Explanation: are correct for your numbers in edg

Following are the parts of Respiratory system:

1.Nose

2. Mouth

3. Pharynx

4. Larynx

5. Trachea

6. Bronchi

7. Bronchioles

8. Alveoli

What is Respiratory System?

The respiratory system is the network of organs and tissues which helps with breathing that includes the airways, lungs, and blood vessels. The muscles that power the lungs are also part of the respiratory system. They work together to move oxygen throughout the body and to clean up waste gases like carbon dioxide.

Respiratory system consists of following parts like

Nose--> Mouth--> Pharynx --> Larynx --> Trachea --> Bronchi --> Bronchioles --> Alveoli

The respiratory system has many functions others than inhaling (breathe in) and exhaling (breathe out), it:

It allows talking and smelling.It warms the air to match the body temperature and moisturizes it to the moisture level the body needs.It transports oxygen to the cells in your body.It removes waste gases, including carbon dioxide, from the body when you exhale.It protects the airways from harmful substances and irritants

Thus, following are the parts of Respiratory system:

1.Nose

2. Mouth

3. Pharynx

4. Larynx

5. Trachea

6. Bronchi

7. Bronchioles

8. Alveoli

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which of the following is a function of the cell membrace?

Answers

Explanation:

Tell me the option in comments section and i will answer you (⌒▽⌒)(⌒▽⌒)

Answer:

Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.

Explanation:

The period during which an excitable membrane cannot respond to further stimulation is the ________ period.

Answers

Answer:

refractory period

Explanation:

refractory period is a period of time during which an organ or cell is incapable of repeating a particular action


1) Consider the image seen here. The image, at point Y, represents the process of
es
A) hydrolysis; lipid
B) hydrolysis; saturated fat
dehydration synthesis, lipid
D) dehydration synthesis, protein

Answers

Answer:

you did put a picture but im pretty sure its a lipids

Explanation:

which of the following organisms obtain their energy from producers only

Answers

Answer:

heterotrophs.

Explanation:

Organisms that obtain their energy from producers or other consumers are heterotrophs.

PLS HURRY


Why are fossils important to developing a theory of evolution?

Answers

Answer:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms

Explanation:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms

The preserved remnants or traces of extinct animals, plants, and other organisms are known as fossils. Because they demonstrate that earlier life on Earth was distinct from the life observed today, fossils are crucial pieces of evidence for evolution.

What is evolution?

According to the idea of evolution, modern life forms have evolved from more ancient ones.

The original theory suggested that this occurred slowly and gradually, but fossil evidence suggests that the process occasionally went wrong and engaged in some very bizarre experiments.

Therefore, they demonstrate that earlier life on Earth was distinct from the life observed today, fossils are crucial pieces of evidence for evolution.

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the primates that spend the most time walking upright are the _____.

Answers

Answer:

Hominids

Explanation:

Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
B. It is better for the cell if most molecules are prevented from
entering
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
Oh

Answers

Answer:

(B) It is better for the cell if most molecules are prevented from entering.

I hope this helped at all.

Explain how water move from cell to cell in a leaf

Answers

Answer:

By osmosis, water enters the root and travels through the root cells until it reaches the xylem vessels. These canals carry water from the stem to the leaf. Transpiration is the process of removing water from the leaves of plants via evaporation.

Explanation:

Water moves from cell to cell in a leaf through a process called transpiration, facilitated by a combination of cohesion, adhesion, and capillary action in the plant's vascular system.

Transpiration: Transpiration is the process by which water vapor exits the leaf's stomata (tiny openings on the leaf surface) into the surrounding atmosphere. As water vapor evaporates from the cells within the leaf, it creates a lower pressure within the leaf's interior, drawing water molecules from neighboring cells.

Cohesion refers to the attraction between water molecules, causing them to stick together. Adhesion, on the other hand, is the attraction between water molecules and the surfaces of other materials, such as the walls of plant cells and the walls of xylem vessels. These properties work together to create a continuous column of water within the plant's vascular system, allowing water to move upward from the roots to the leaves.

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after dogs, what is thought to be the first domesticated farm animal?

Answers

Answer:

sheep and goats

Explanation:

During what stage(s) of the cell cycle is the cell actively dividing?

Answers

Answer:

interphase

Explanation:

The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.

Although a liver cell and a muscle cell in a human cell develope from the same single cell, their appearance and function is different. This is because their liver cell is?

Answers

Answer:

liver cells:

contain different genes than the muscle celldestroyes the muscle cell genes it contains lacks the genes found in muscle cells

An organelle that releases energy for metabolic activity in a nerve cell is the...?

Answers

Answer:

Mitochondria

Explanation:

Mitochondria is an organelle that creates energy in the form of ATP in all living cells.

lymph is largely composed of water that has escaped from

Answers

Escaped from the Blood Plasma’s

PLEASE HELP ME IM TIMED!

Answers

Answer:

its D

Explanation:

which exam are you doing?

Draw a line to connect the following terms to their definitions.

Answers

Answer:

If I am not wrong 1 and A

2 and C

3 and B

Answer:

I do not know this question I

Explanation:

Hahahh and I will be unable to attend the meeting on the 27th July 4th and I will not be able to attend the meeting on the 27th of this month so that I can make the necessary changes to the meeting on the 27th of this month and will have to wait until I get back to the office tomorrow and

sensory information from all parts of the body is routed to

Answers

Answer:

the Somatosensory Cortex.

Explanation:

im not sure that is just the anwser.

3. How does a tongue help in the process of digestion?​

Answers

Answer:

the tongue helps in the process of digestion by facilitation the movement of food while chewing and assisting the process of swallowing

Explanation:

ventral roots of spinal nerves are purely or primarily ________.

Answers

Answer:

Motor

Explanation:

The Ventral root can also be known as the motor root

Hope this Helps

why does modification of roots occur? give any two / causes class 8​

Answers

- The roots modify to absorb + transport water & minerals from the soil to different parts of the plant

- They are modified for support, food storage, and respiration

- Roots are modified into other forms to do different functions than their normal functions

- Modification in root can also occur when there is a permanent change in the structure of the root system

(Gathered + reworded information from a few different users who answered the same question elsewhere on Brainly.)

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

If one plant is named Salvia greggii and another is named Salvia vanhouttei, what does this tell you about these plants?

A.) They belong to the same genus and can interbreed.
B.) They belong to the same genus and to different species.
C.) They belong to the same species and to different genuses.
D.) They belong to the same species and can interbreed.

Answers

C.) They belong to the same species to different genuses.

Answer:

They belong to the same species and to different genuses.

Explanation:

Match the color components of light with the resulting color of light
A. Yellow
B. White
C. Magenta
D. Cyan
____1. Red + Green
____2.Red + Blue
____3. Green + Blue
____4. Red + Green + Blue

Answers

1. A
2. C
3. D
4. B

Explanation:

Answer:

» 1. A. Yellow » 2.C. Magenta» 3.D. Cyan » 4.B. White

What is the open space that separates the left and right lung?

Corpus callosum
Septum
*Mediastinum
All of the above

Answers

Answer:

c. Mediastinum

Explanation: is correct. post protected

It is more difficult to identify eukaryotic genes than prokaryotic genes because in eukaryotes ________.

Answers

Answer:
There are introns in eukaryotic genes.

"Plants can survive on their own, because they make their own food. Animals can’t survive on their own but need plants for survival." A. Do you agree with this statement? B. Why or why not? C. Provide evidence to explain your reasoning.

Answers

Answer:A

Explanation:

Yes yes because it is required for photosynthesis to take place. ... he reactants that go into photosynthesis come out of respiration. Plants can survive on their own, because they make their own food. Animals on the other hand, cant survive without any food source

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