Download Assignment 1 solution

Biology for engineers and other non-biologists
Assignment 1 Solution
The correct option is highlighted.
1. What is the most abundant element found in all living things is?
a)
b)
c)
d)
H
C
P
He
2. Sterilization is carried out prior to surgery because
(a)
(b)
(c)
(d)
All microbes in the air are harmful
To remove the risk of wound infection
To prevent spread of infection from a sick surgeon
All of the above
3. The flow of information in all living organisms is as follows?
a)
b)
c)
d)
DNA  Protein  RNA
RNA  Protein  DNA
RNA  DNA  Protein
DNA  RNA  Protein
4. Evolution of today’s oxidative metabolism (respiration) happened in response to which of
the following events?
a)
b)
c)
d)
Sharp increase in atmospheric H2S
Sharp increase in atmospheric O2
Sharp decrease in atmospheric O2
Sharp increase in atmospheric CO
5. Which of the following statements about cells walls are true
(a) Maintains cell shape and structure
(b) Protects from shear stress
(c) Is absent in human cells
(d) All of the above
6. Which of the following is a major domain of life?
(a) Fungi
(b) Protozoa
(c) Bacteria
(d) All of the above
7. An example of a vestigial organ in human body is?
a)
b)
c)
d)
Pitutary
Prostrate
Appendix
Colon
8. In the phrase “Survival of the fittest”, while “Survival” refers to the ability to live and
reproduce, what does “fittest” refer to?
a)
b)
c)
d)
The tallest individuals
The strongest individuals
The individuals with the fastest reproductive ability
The individuals with the best adaptations to fit the environment
9. Shear stress in cells cultured in bioreactors arises due to
(a) Presence of relative velocities
(b) Active stirrers and agitators
(c) Aeration of medium
(d) All of the above
10. Choose the correct statement
(a) High membrane fluidity allows for better shear resistance
(b) Low membrane fluidity improves cell membrane flexibility
(c) Unsaturated fatty acids in lipid bilayer lead to a tightly packed membrane
(d) None of the above