Question 2:
Figure 2 shows microorganisms P, Q, R, S and T.
Figure 2
(i) have cell wall and cell membrane
(ii) have no cell wall and cell membrane.
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2022/04/F5C1_6.jpg)
(b) Name the group of microorganisms that has no cell wall and cell membrane.
(c) (i) Name microorganism P.
(ii) Is microorganism P a useful microorganism or a pathogen? Explain your answer.
Answer:
(a) Have cell wall and cell membrane : P, Q, R and T
Have no cell wall and cell membrane : S
Figure 2 shows microorganisms P, Q, R, S and T.
![](http://spmsains.blog.onlinetuition.com.my/wp-content/uploads/sites/15/2022/04/T5B1_2.jpg)
(a)
Classify P, Q, R, S and T based on the following characteristics:(i) have cell wall and cell membrane
(ii) have no cell wall and cell membrane.
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2022/04/F5C1_6.jpg)
(b) Name the group of microorganisms that has no cell wall and cell membrane.
(c) (i) Name microorganism P.
(ii) Is microorganism P a useful microorganism or a pathogen? Explain your answer.
Answer:
(a) Have cell wall and cell membrane : P, Q, R and T
Have no cell wall and cell membrane : S
(b) Virus
(c)(i) Yeast
(c)(ii) Microorganism P is a useful microorganism because it is used to make food such as bread. Microorganism P is not a pathogen because it does not cause disease.