Question 1:
What are microorganisms?
Answer:
Microorganisms are minute organisms which cannot be seen with the naked eye.
What are microorganisms?
Answer:
Microorganisms are minute organisms which cannot be seen with the naked eye.
Question 2:
(a) Name five groups of microorganisms.
(b) What are the characteristics used to classify microorganisms into five groups?
Answer:
(a) Fungi, algae, protozoa, bacteria, viruses
(b) Size, shape, method of reproduction, nutrition, habitat
(a) Name five groups of microorganisms.
(b) What are the characteristics used to classify microorganisms into five groups?
Answer:
(a) Fungi, algae, protozoa, bacteria, viruses
(b) Size, shape, method of reproduction, nutrition, habitat
Question 3:
Name the group of microorganisms that reproduces asexually through the formation of spores.
Answer:
Fungi, bacteria
Name the group of microorganisms that reproduces asexually through the formation of spores.
Answer:
Fungi, bacteria
Question 4:
State two basic structures that make up a virus.
Answer:
Deoxyribonucleic acid (DNA)/ribonucleic acid (RNA) and protein layer (capsid)
State two basic structures that make up a virus.
Answer:
Deoxyribonucleic acid (DNA)/ribonucleic acid (RNA) and protein layer (capsid)
Question 5:
State five factors that affect the growth of microorganisms.
Answer:
Nutrition, humidity, light, temperature, pH value
State five factors that affect the growth of microorganisms.
Answer:
Nutrition, humidity, light, temperature, pH value
Question 6:
Figure 1 shows a type of microorganism.
(a) What is the group of the microorganism shown above?
(b) (i) What is the structure labelled X?
(ii) State the function of this structure.
Answer:
(a) Protozoa
(b)(i) Pseudopodium
(b)(ii) To move and engulf food
Figure 1 shows a type of microorganism.
(a) What is the group of the microorganism shown above?
(b) (i) What is the structure labelled X?
(ii) State the function of this structure.
Answer:
(a) Protozoa
(b)(i) Pseudopodium
(b)(ii) To move and engulf food