Kingdom Monera

Q.

Archaebacteria differ from eubacteria in?

1. Cell membrane

2. Cell shape

3. Mode of reproduction

4. Mode of nutrition

Q. Small circular extrachromosomal molecules present in a bacterial cell are called plasmids.

1. DNA
2. RNA
3. protein
4. sugar

Q. The most abundant prokaryotes helpful to humans in making curd from milk and in the production of antibiotics are the ones categorized as:

1. Chemosynthetic autotrophs
2. Heterotrophic bacteria
3. Cyanobacteria
4. Archaebacteria

Q. The cyanobacteria are also referred to as

1. Slime moulds
2. Blue green algae
3. Protists
4. Golden algae

Q. Binary fission is the general mode of reproduction in bacteria.

1. True
2. False

Q. Small circular extrachromosomal molecules present in a bacterial cell are called plasmids.

1. DNA
2. RNA
3. protein
4. sugar

Q.

Write a note on kingdom Monera.

Q. All prokaryotes have a very primitive nucleus in which the genetic material is

1. double-stranded, free, circular DNA with histones
2. double-stranded DNA without histones
3. histones with linear double-stranded DNA
4. linear single-stranded DNA without histones

Q. Mycoplasma lacks a and is a

1. aerobe
2. cell membrane
3. cell wall
4. facultative anaerobe

Q. In which kingdom, would you classify the archaea and nitrogen-fixing organisms, if the five kingdom system of classification is used

1. Protista
2. Monera
3. Plantae
4. Fungi

Q.

Where can anoxygenic photosynthesis be seen?

Q. Continuous binary fission makes a bacterial cell susceptible to antibiotics.

1. True
2. False

Q. Which among the following statements are correct?
A. Compared to many other organisms, bacteria as a group show the most extensive metabolic diversity
B. Mycoplasma die in the absence of oxygen
C. Cyanobacteria often form blooms in polluted water bodies
D. No pathogenic mycoplasmas have been found so far

1. A, B and C
2. A and C
3. B, C and D
4. C and D

Q.

Bacteria differ from plants in that they do not have

1. DNA

2. RNA

3. Cell wall

4. A well defined nucleus

Q. Photoautotrophic organisms always perform photosynthesis without releasing oxygen.

1. True
2. False

Q. Bacteria that reproduce through binary fision produce non-identical cells.

1. False
2. True

Q. Small circular extrachromosomal molecules present in a bacterial cell are called plasmids.

1. DNA
2. RNA
3. protein
4. sugar