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
leva [86]
3 years ago
8

I’m not sure what it means for the cell membrane to be semi-permeable

Biology
1 answer:
Lesechka [4]3 years ago
8 0

Answer:

It means that the cell membrane allows certain substances to pass through and not others. As the cell membrane consists of a phospholipid bilayer with a hydrophobic core, only small uncharged hydrophobic molecules can pass through the cell membrane e.g. glucocorticoid and other larger charged particles require transporters or channel proteins to pass through the cell membrane, e.g. glucose.

You might be interested in
A _____ map provides information about how and when rocks formed in a particular area.
Allisa [31]
The answer is B, geologic map. the reason is the study of Geological history is <span>The specific science that is devoted to the study of the Earth, particularly the solid Earth and the rocks that compose it. I hope this helps. </span>
6 0
3 years ago
What are the functions of pharynx
bekas [8.4K]
There are basically 3 types of pharynx- nasopharynx, oropharynx and laryngopharynx.
The function of the pharynx are:-
1. To transport the food from mouth to esophagus. 
2. To warm, moisten and filter the air, before it moves to the trachea, and then to the bronchi, the bronchioles, the alveoli and at last to the lungs.
    Therefore, pharynx(or throat) is a part of both- digestive and respiratory systems.
3. It is also important for vocalization. 



5 0
3 years ago
Read 2 more answers
According to the article, why is a faulty hypothesis still an acceptable outcome to scientists
Lunna [17]

Answer:a

Explanation:

5 0
3 years ago
Explain the difference between control group and experimental group
Elan Coil [88]
A control group is kept the same to determine whether or not what you did for an experiment on the experimental group was actually caused by the experiment performed, and not other environmental changes. By keeping the same climate, environments, nourishment, etc. on a control group and experimental group, but only performing the experiment on the experimental group, you can prove your experiment actually works.
7 0
4 years ago
What macromolecule's main function is to store energy for immediate use
tatiyna
Carbohydrates; long term use is lipids.

4 0
3 years ago
Other questions:
  • Kate is arguing with her friend that sardines have higher net production efficiency than blue whales. Why do you think that Kate
    11·1 answer
  • How do some cells become brain cells and others become skin cells, when the DNA in ALL the cells is exactly the same. In other w
    7·1 answer
  • How do plants breathe
    15·1 answer
  • The ________ is the part of the eye that contracts and dilates to adjust the amount of light entering the pupil whereas the ____
    5·1 answer
  • After visiting a nature center, students were asked to contrast their observations based on location. Which of these students fo
    12·2 answers
  • A biology class wants to perform an experiment to investigate the effect of different colors of light on germination. they wrap
    9·2 answers
  • In order to use polysaccharides as an energy source, one must
    8·1 answer
  • Photosynthesis and Respiration can be summarized into equations. Write the equations and how do they relate to one another.
    12·1 answer
  • Help!!! What does the genotype for a trait BB represent?
    13·1 answer
  • In which Colorado Rockies scenario was there more erosion? Why was there more erosion in the scenario?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!