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
goldfiish [28.3K]
3 years ago
7

Child level explanation for what the cell membrane does for the cell

Biology
1 answer:
zvonat [6]3 years ago
4 0

it separates the inside of the cell from the environment outside and it controls substances moving in and out of the cell (selectively permeable)

You might be interested in
Explain the thermal properties of water
Zinaida [17]

Answer:

A glance of earth taken from space will depict it blue. This blue colour is actually water, the major part of the earth is covered with water. We need water for almost everything, for example- drinking, bathing, cooking etc and therefore we should know about the properties of water. 65 % human body is composed of water. Water is essential for the survival of life on earth. Water is distributed unevenly on the earth’s surface. It forms a major solvent and dissolves almost every polar solute. So let us have a look at its properties.

Physical properties of water : Water is a colourless and tasteless liquid. The molecules of water have extensive hydrogen bonds resulting in unusual properties in the condensed form. This also leads to high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment etc. These properties form the reason for its significance in the biosphere. Water is an excellent solvent and therefore it helps in the transportation of ions and molecules required for metabolism. It has a high latent heat of vaporization which helps in the regulation of body temperature

Chemical properties of water: Amphoteric nature:

Water can act as both acid and base, which means that it is amphoteric in nature.

Example:

Acidic Behaviour: H2O(l)+NH3(aq) ⇌ H3O+(aq)+NH+4(aq)

Basic Behavior: H2O(l)+H2S(aq) ⇌ H3O+(aq)+HS−(aq)

Redox reactions:

Electropositive elements reduce water to hydrogen molecule. Thus water is a great source of hydrogen. Let us see an example in this case:

2H2O(l)+2Na(s)→2NaOH(aq)+H2(g)

During the process of photosynthesis, water is oxidized to O2. As water can be oxidized and reduced, it is very useful in redox reactions.

Hydrolysis reaction

Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.

Explanation:

7 0
2 years ago
Define the verb "adapt". Does survival in a particular environment through coping is synonymous with evolution? Why or why not?
notsponge [240]

Answer:

The word adapt means to get adjusted to a change.

yes, survival in a certain environment is similar to evolution. Both must use adaptation in order for life to keep living through changes in the environment. Each help life sustain itself in a very unique way.

Explanation:

4 0
3 years ago
Which cellular structures are found in plant cells but NOT in animal cells?
Anestetic [448]
a. chloroplast and cell wall

The chloroplast contains chlorophyll, which is the stuff that makes plants green. So animals do not have a chloroplast. Only plants have a cell wall and it is what helps plants maintain their shape. Hope this helped! :)
4 0
3 years ago
Read 2 more answers
In a controlled experiment, what term is used to describe the many factors that might be different between the experimental and
valkas [14]
The answer to your question will be answer B.
5 0
3 years ago
Read 2 more answers
Which part of the membrane can catalyze chemical reactions?
kenny6666 [7]

Answer:

the correct answer is enzymes

Explanation:

enzyme act as catalyst and is a biological molecule which within the cell membrane can speed up or increase the rate of biological reaction without affecting itself and is obtained unchanged at the end of reaction

8 0
3 years ago
Read 2 more answers
Other questions:
  • Why have plants evolved ways to prevent self-fertilization? Why do you cross-fertilization (plant to plant) more beneficial to t
    7·1 answer
  • Sundews and wolf spiders compete with each other for flies to eat. How would the sudden decrease in the size of the wolf spider
    15·1 answer
  • 5. How are photosynthesis and cellular respiration related?
    9·1 answer
  • Does trna bring amino acids to the nucleus or ribosomes
    6·1 answer
  • Along with the spin of the Along with the spin of the Earth, what causes its magnetic field?
    13·2 answers
  • A certain species of plant has four unlinked genetic loci, w, x, y, and z. each genetic locus has one dominant allele and one re
    5·2 answers
  • Which of the following describes how the endocrine system could cause blood pressure to decrease?
    10·2 answers
  • The plasma membrane is composed of a phospholipid by layer with embedded proteins what is one of the functions of the embedded p
    12·1 answer
  • 1. The insertion site for the sternocleidomastoid is
    13·2 answers
  • Signals from sense organs going to the brain and spinal cord go through __________. A. Hypothalamus B. Receptors C. Sensory neur
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!