1. Which one of the following is an obligate anaerobe
a. Halobacterium
b.Thermus aquaticus
c.Chlamydomonas nivalis
d.Clostridium
2. Cyanophyceae in general are
a.Heterotrophs
b.Obligate heterotrophs
c.Obligate photoautotrophs
d.Autotrophs
3. Endospore can be formed by which of the following:
a. Gram negative bacteria
b. Gram-positive bacteria
c.Both of the above
d.None of the above
4. Bacterial species showing several flagella at one pole are called:
a. Monotrichous
b.Peritrichous
c.Lophotrichous
d. Amphitichous
5. Assertion (A): Some gram-positive bacteria form endospores
Reasons (R): Endospore does not contain dipicolinic acid
In the light of above statements, choose the appropriate answer from the options given below:
a. Both A and R are correct and R is the correct explantion of A.
b.Both A and R are correct but R is Not the correct explanation of A.
c. A is correct but R is not correct
d. A is not correct but R is correct
Answers:
1. d.Clostridium
2. d.Autotrophs
3. b. Gram-positive bacteria
4.c.Lophotrichous
5. b.Both A and R are correct but R is Not the correct explanation of A.