1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ollegr [7]
3 years ago
7

"cell structures is the permeability layer that lets only a selective number and type of molecules into the cell?"

Biology
1 answer:
Montano1993 [528]3 years ago
6 0

Answer: Cell membrane

Explanation:

The cell membrane has the ability to transfer the molecules from the exterior of the cell to the interior of the cell.

The cell membrane is semi permeable which means only selected molecules will pass through the cell membrane.

The molecules and substances that are synthesized inside the cell needs to be transported from inside to outside via cell membrane.

You might be interested in
I need your help guys..<br>Thanks,..​
masya89 [10]

Answer:

  1. A
  2. D
  3. C
  4. A
  5. C
  6. D
  7. C
  8. B
  9. C
  10. B

Explanation:

When you see, Tbsp and tsp, you count them with a measuring spoon.

When you see, c and a solid mass, you count them with a measuring cup for dry.

When you see a liquid you count them with a measuring cup for liquid ingredients.

3 0
3 years ago
a student is observing a group of cells under a microscope. what observation would would help her conclude that they are plant c
Lana71 [14]

Answer;

b. The cells appear well-defined, indicating the presence of cell walls.

Explanation;

Although, the overall function of the cell is the same, there are some important differences between animal and plant cells.

The first difference is that plant cells have an organelle called chloroplast. Chloroplasts contain a pigment called chlorophyll (which gives the plant its green color).

-Additionally, animal cells are smaller than plant cells and have a membrane around them that is flexible and allows molecules, gases and nutrients to pass into the cell. Plant cells are larger and in addition to a membrane they have a rigid cell wall. The cell wall does not let any material pass so instead the plants cells must have tiny openings between cells like doors between rooms in your house.

5 0
3 years ago
Read 2 more answers
Although the digestive system is primarily responsible for the breakdown of food this process can be disrupted if the circulator
Harrizon [31]
1) Human body systems interact with each other to perform life functions
8 0
4 years ago
A ______ is a substance containing incomplete portions of a virus that produce an immune response when injected into the body.
riadik2000 [5.3K]

Answer:

Vaccine

Explanation:

A vaccine contains an alive but not lethal amount of a virus so that when you get injected, your antibodies can recognize the virus quicker in the event that you do get the virus. Hope this helps :)

6 0
3 years ago
How many nucleotides are present in the normal DNA sequence?
Ipatiy [6.2K]
There are 4. Adenine, Thymine, Cytosine, and Guanine
7 0
4 years ago
Read 2 more answers
Other questions:
  • Would you withdraw CSF if the needle were accidentally inserted into the epidural space instead of the subarachnoid
    6·1 answer
  • All three regions of the brain stem can be observed on the ventral surface of the brain. all three regions of the brain stem can
    5·1 answer
  • If a person takes an antibiotic for a bacterial infection, this can reduce the amount of bacteria in their normal microbiota and
    15·1 answer
  • A strand of DNA in a skin cell contains the bases:
    12·1 answer
  • The change in energy consumption in the United States during the past 100 years is due to _____ A. neither population growth nor
    8·1 answer
  • Phytoplankton are microscopic marine plants that perform photosynthesis. They are responsible for removing the majority of carbo
    9·1 answer
  • In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely gen
    7·1 answer
  • One characteristic of all living organisms is that they have genetic information. What is the name of this genetic information a
    11·1 answer
  • George uses crayons to draw a model of the solar system on a sheet of paper. What is a limitation of this model?
    15·2 answers
  • Considering the lungs are spongy tissue with air sacs, why would a difference in pressure cause the lungs to rupture? What is as
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!