Other Biology Answers

Discuss membrane receptors and describe their functions

What is equilibrium

(a) Distinguish between a virus, viroid and prion.


(b) What is a bacteriophage?


(c) What are the 3 basic viral shapes?


(d) During the lysogenic cycle of s virus, what happens to the viral nucleus acid after it is injected into the host cell?

1. What are the two components shared by all viruses?


2. Viruses are generally considered to be non living. Should viroids and prions also be viewed as non living. Why or why not?


3. A wart is caused by a virus that may lie dormant for years before any symptoms appear. Does this resemble a lytic or Lysogenic infection? Explain.

1.During the lysogenic cycle of virus, what happens to the viral nucleic acid after it is injected into the host cell? [1]

2.Explain relationship between shingles and chickenpox. [2]

1. Viruses are generally considered to be non living. Should viroids and prions also be viewed as non living? Why [2]

2.A wart is caused by a virus that may lie dormant for years before symptoms appear. Does this resemble a lytic or lysogenic infection. Explain [2]

How can we keep the application of recombinant DNA technologies ethica as a scientist, student, and as a citizen?

What is the age of the Earth? Describe using the two methods of dating.

Determine the stimulus, receptor, control center response and effector for gas exchange for plants.