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
asambeis [7]
3 years ago
6

What is the basic mechanism by which air travels to the alveoli for gas​ exchange? emt?

Biology
1 answer:
Anestetic [448]3 years ago
6 0
The Major function of the respiratory system is to exchange oxygen and carbon dioxide. Inhaled oxygen enters the lungs and reaches the alveoli, the layers of the cells lining the alveoli and the surrounding capillaries are each only one cell thick and are in very close contact with each other, the barrier between air and blood averages about 1 micron in thickness. Oxygen diffuses quickly through the air-blood barrier into the blood in the capillaries. Similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled. 
You might be interested in
Which of the following function is NOT a function of ground tissue in a plant?
solong [7]
The answer is b)produces sugars
8 0
3 years ago
Read 2 more answers
The cell knows which amino acids are to be attached to the ribosome during translation by reading the ______________ found on th
bekas [8.4K]

Answer:

The correct answer is - codons.

Explanation:

Each mRNA is made up of the codons that are complementary to the DNA sequence during transcription and once it binds with the ribosome, mRNA strand codes are read by tRNA in triplet code that decides which amino acid would be bind to the ribosome during translation to synthesize the polypeptide chain. For instance, if mRNA has CCG codon then tRNA should have GGC anticodon should have bound.

4 0
3 years ago
Which type of bond is the strongest?<br> A. lonic<br> O B. Covalent<br> C. Metallic<br> D. Hydrogen
frutty [35]

Answer:

A

Explanation:

The two strongest bonds are ionic and covalent, but generally, ionic is viewed as the stronger bond because of the ion-ion force that occurs within the bond. It does depend on other factors though.

7 0
3 years ago
A stable physical mixture of two or more substances is a(n):
mixer [17]
The answer is a solution
3 0
3 years ago
Read 2 more answers
The mechanism whereby an enveloped virus leaves a host cell is called
Levart [38]

Answer:

Release or egress

Explanation:

Virus can reproduce only within a host cell, this cycle of infection begins with the <em>attachment</em>, where the virus attaches to a specific receptor site on the host cell, after this comes the<em> entry,</em> in the case of enveloped virus, the envelope can fuse directly with the cell membrane to enter the cell, they can also enter through endocytosis. After entering the cell the virus initiates a <em>replication  and assembly </em>mechanism depending on its genome, finally, the last stage of viral replication is the <em>release or egress </em>of the new virions produced in the host organism, some viruses can be released when the host cell dies, but some can leave infected cells by budding through the membrane without directly killing the cell.

I hope you find this information useful and interesting! Good luck!

7 0
3 years ago
Other questions:
  • The middle layer of the urinary bladder is identified as ___________.
    8·2 answers
  • _____ eclipse occur when earth passes between the sun and the moon?
    15·2 answers
  • When graphin the independent variable shoe be placed on the y axis true or false
    14·1 answer
  • Cells that respond to peptide hormones usually do so through a sequence of biochemical reactions involving receptor and kinase a
    13·1 answer
  • What system of the earth would a glacier belong to
    15·1 answer
  • James has been having trouble digesting lean steaks and other protein-rich foods, and these foods seem to stay in his stomach lo
    6·1 answer
  • If you could analyze, at the molecular level, a plasma cell making IgE antibody, you would find which of the following:______.
    12·1 answer
  • Which two atoms form an ionic bond?
    9·2 answers
  • Ribosomes are produced in an area of the nucleus known as the
    13·1 answer
  • A solution with a pH of 7
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!