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
Kay [80]
3 years ago
5

What is meant by the following statement about the cell membrane?

Biology
2 answers:
AysviL [449]3 years ago
6 0

Answer:

The cell membrane is semipermeable because allows only certain molecules to pass through.

Explanation:

Semipermeability is a common property of cell membranes, due to their predominantly lipid composition, which gives them a hydrophobic character.

The cytoplasmic membrane is constituted by a double layer of lipids, in addition to structural proteins and glucides, which prevent the entry of polar or charged molecules. This characteristic allows lipids and small molecules without charge to pass freely through it.

Regarding the other options:

<em>     A. Cell membranes are associated with lysosomes, structures that contain enzymes. However, this characteristic is not related to semipermeability.</em>

<em>     C. They allow the passage of small molecules - devoid of charge - through them.</em>

<em>     D. Not all non-polar molecules pass through, as some need a transporter.</em>

DedPeter [7]3 years ago
6 0

Answer: B it only allows certain molecules to pass through

Explanation: permeability is the ability to let molecules pass through, and semipermeable only allow certain molecules through.

You might be interested in
Need help on this one please
DanielleElmas [232]

Answer:

the last one house cats lions and tigers belong to the same class abd and family

8 0
3 years ago
Which one contains many organelles with different functions prokaryotic cell eukaryotic cell​
skelet666 [1.2K]

Answer:

Eukaryotic Cell

Explanation:

Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.

7 0
2 years ago
Read 2 more answers
1. Typically large organisms
ddd [48]

Large organisms include...

Mammals (Mammalia)

Stem-mammals (Synapsida)

Reptiles (Reptilia)  

Dinosaurs (Dinosauria)

5 0
2 years ago
Each double bond in carbon dioxide represents ________. O=C=O
Lisa [10]

Each double bond in carbon dioxide represents two pairs of electrons which are shared between the carbon and oxygen atoms.

<h3>What is an Electron?</h3>

This refers to a subatomic particle which has a negative charge and is involved in chemical reactions.

Each double bond in carbon dioxide represents two pairs of electrons which are shared between the carbon and oxygen atoms so as to enable them achieve an octet configuration.

Read more about Electron here brainly.com/question/860094

#SPJ1

5 0
2 years ago
Can someone please tell me some really important and interesting things about air pressure and atmosphere... give a quality answ
DochEvi [55]
Air pressure is what you measure with a tire gauge. Atmospheric pressure is what you measure with a mercury barometer. Let me be more specific. Pressure is the amount of force per unit area that a gas exerts on a surface.
3 0
3 years ago
Other questions:
  • Organisms at the first trophic level in a food pyramid are:
    7·1 answer
  • Hipótesis what effect t s does the water temperature have on solution rate
    15·1 answer
  • What happens when an environment has not reached its carrying capacity for a population
    9·2 answers
  • In general, the more physical activity individuals do,
    10·1 answer
  • What is life<br>...<br><br><br>...<br>??
    12·1 answer
  • Understanding how alcohol is absorbed and metabolized by the body can provide helpful insights into the potential effects of alc
    9·1 answer
  • Who first called the cells "cells"?
    11·2 answers
  • What is the cause and effect of stop codone mutation?
    14·1 answer
  • What is active transport?
    11·1 answer
  • What is the insertion site of the gracilis muscle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!