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
VARVARA [1.3K]
3 years ago
9

Is a cell membrane more like a brick wall or a chain-link fence? Why?

Biology
2 answers:
RideAnS [48]3 years ago
8 0

Answer:chain-link fence

Explanation:a cell membrane is partial permeable which means that it lets some substances through but not other.

Fantom [35]3 years ago
8 0

Answer:

Chain-link fence

Explanation:

Cell membranes are barriers that decide which molecules enter and exit the cell, and how much of them come in. So things are able to pass through them.

If it were a brick wall, it would not let anything pass through.

So it is more like a chain-link fence, but with more control over what passes through it.

You might be interested in
Which form of evidence for evolution was not available to Darwin in 1858?
pogonyaev
I believe it is B.
Don’t hate me if I am wrong :,)
7 0
3 years ago
Read 2 more answers
Can you differentiate the various dysrhythmias? for each disorder, drag and drop the statements that apply to the disorder to th
Ratling [72]

The right matches are:

Ventricular fibrillation  ==> Loss of consciousness and death

Two successive PVC's  ==> Often asymptomatic

Bizarre ECG waves ==> Defibrillation is needed .

Ventricular fibrillation is a violent and disordered contraction of muscle fibers, especially the heart muscle, in the ventricles. This systematically leads to loss of consciousness or death.

Defibrillation is a treatment by electrical shock of abnormal contractions of the heart fibers, in order to restore a normal heart rhythm.

Premature contraction of the heart alters the normal heart rhythm but is clinically undetectable or expressed as palpitations.

7 0
3 years ago
Arrange the sequence of events for the overall mitochondrial respiratory assembly in the correct order.
kotykmax [81]

Answer:

Option D, 4,2,1, 3

Explanation:

The mitochondrial respiratory chain (MRC) comprises of four membrane bound complexes and it involves the following steps

a) RC complexes (RCC) I and II reduces the RC’s equivalent where RCCI i.e receives electron from the NADH.  

b) These electrons are then transferred to the flavin mononucleotide factor and then passed on to the Fe-S embedded cluster .

c) These electron reduces the coenzyme Q  to ubiquinol  

d) With in the inner mitochondrial membrane (IMM), protons are trans located from IMM to the  intermembrane space (IMS)

e) RC complex II then transfer electron from succinate to the cofactor FAD

f) From FAD proton are transferred to the FeS cluster and on the other hand electron move from QH2 to the RC complex III

g) This RC complex III give its electrons to the cytochrome and they are further passes on to the RC complex IV

h) With four redox centers, the terminal RC complex translocate protein by using energy produced in electron transfer thereby converting oxygen into water.

Hence, the correct option is D

5 0
3 years ago
How many nuclei does skeletal cell have?
tigry1 [53]
Idk the answer, I'm sorry
7 0
3 years ago
Which of these describes the structure of a nucleic acid
KonstantinChe [14]

Answer:

Cola Sofdrinks

Explanation:

bicuse you say acid

8 0
2 years ago
Read 2 more answers
Other questions:
  • The layers of bone tissue immediately deep to the periosteum are
    12·2 answers
  • What was the possible function of the horns of the dinocephalian, and was this animal a herbivore or carnivore? question 4 optio
    7·1 answer
  • Give one example of a type of energy that is considered electromagnetic radiation.
    11·2 answers
  • Double membrane that separates the nucleus from the cytoplasm
    5·1 answer
  • Winds always blow from ________ pressure toward _______ pressure, and they curve because of the _______ effect.
    7·2 answers
  • Two examples of X-linked inheritance in humans are: type II diabetes and high blood pressure. a. sickle-cell anemia and alpha-1-
    15·1 answer
  • The area of a neuron that contains the nucleus and other organelles is called the ____________.
    15·1 answer
  • Which of these processes produces carbon dioxide?
    9·2 answers
  • WILL GIVE BRAINLIST
    5·1 answer
  • Which of the following correctly matches a phase of the cell cycle with its description?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!