Quiz 10

Question 1

1.What is the primary source of energy for organisms living on the earths surface?
Select one:
  a. ATP
  b. plants
  c. the sun  
  d. food
  e. electron transport

Answer 1

c. the sun

Question 2

2. Which is NOT true of prokaryotes?
   Select one:
   a. they contain DNA
   b. they all cause disease
   c. they evolved early in the history of life
   d. they include both Archaea and Bacteria
   e. they lack membrane bound organelles
   Feedback
   The correct answer is: they all cause disease

Answer 2

b. they all cause disease

Question 3

3. Which of these could you see with a light microscope?
Select one:
  a. a prion
  b. hemoglobin
  c. neon atom
  d. ebola virus  
  e. fungal hyphae

Answer 3

e. fungal hyphae

Question 4

4.Mad cow disease is caused by a:
Select one:
  a. parasite
  b. virus
  c. fungus
  d. bacterium
  e. prion

Answer 4

e. prion

Question 5

5. You isolate a microorganism from inside a human being. It would be safe to assume:
   Select one:
   a. the individual is diseased
   b. it can grow at blood temperature (37 degrees Celsius)
   c. it is antibiotic resistant
   d. it is E. coli
   e. it can digest cellulose

Answer 5

b. it can grow at blood temperature (37 degrees Celsius)

Question 6

6. Which are found in all viruses?
Select one:
  a. RNA and protein
  b. nucleic acid and protein  
  c. flagella
  d. DNA, RNA and lipids
  e. oncogenes

Answer 6

b. nucleic acid and protein

Question 7

7. Influenza is caused by a:
Select one:
  a. virus  
  b. prion
  c. bacterium
  d. parasite
  e. fungus

Answer 7

a. virus

Question 8

8. Humans have exhibited exponential population growth since the 1600s. Which of the following is NOT a reason why significant population growth has been able to occur?
   Select one:
   a. spreading into new habitats
   b. improvement in hygiene and disease control
   c. use of contraceptives
   d. decreases in infant mortality
   e. tapping into concentrated energy sources

Answer 8

c. use of contraceptives

Question 9

9.Which of these associations is incorrect?
Select one:
a. platelets - blood clotting
b. serum - makes antibodies
c. white blood cells - fight infection
d. red blood cells - carry oxygen
e. plasma - carries nutrients

Answer 9

b. serum - makes antibodies

Question 10

10. Mycorrhizal fungi
Select one:
  a. are a type of lichen
  b. cause athletes foot
  c. help plants photosynthesise
  d. are plant parasites
  e. help plants to collect water and nutrients

Answer 10

e. help plants to collect water and nutrients

Question 11

11. Which sequence represents the correct order of increasing complexity in living things?
    Select one:
    a. molecule, cell, organelle, organ, individual
    b. cell, organ, tissue, individual, species
    c. polymer, monomer, cell, tissue, organ
    d. atom, polymer, tissue, cell, organ
    e. organelle, cell, tissue, organ, organ system

Answer 11

e. organelle, cell, tissue, organ, organ system

Question 12

12. Of the following definitions, which describes a virus?
    Select one:
    a. obligate intracellular parasites that cannot reproduce outside a living cell
    b. proteins that catalyse their own conversion to structures that damage neural function
    c. prokaryotes that invade human tissues and cause infectious diseases
    d. multicellular eukaryotes which can cause infectious disease
    e. multicellular organisms that can cause chronic infections

Answer 12

a. obligate intracellular parasites that cannot reproduce outside a living cell

Question 13

13. Microorganisms found in or on the human body
    Select one:
    a. can never cause disease
    b. supply us with methane
    c. are mainly protozoa
    d. have highest densities in the large intestine
    e. always cause disease

Answer 13

d. have highest densities in the large intestine

Question 14

14. What is the general term for bacteria that are spherical in shape?
Select one:
  a. spirilli
  b. conidi
  c. bacilli
  d. cocci  
  e. coli

Answer 14

d. cocci

Question 15

15. Which of these criteria is NOT part of Kochs postulates?
    Select one:
    a. agent is always present in individuals with the disease
    b. agent can be isolated from diseased individuals
    c. agent causes the disease when inoculated into a healthy individual
    d. agent can be reisolated from an inoculated individual
    e. agent spreads between infected and uninfected individuals

Answer 15

e. agent spreads between infected and uninfected individuals