NEET UG Botany MCQ-11

Question No:1

Cyanophycin granules are granules of

(A) Reserve carbohydrate
(B) Reserve lipids
(C) RuBP carboxylase
(D) Reserve protein.

Question No:2

Heterocysts occur in

(A) Bacteria
(B) Archaebacteria
(C) Mycoplasmas
(D) Cyanobacteria

Question No:3

Heterocysts are specialised in

(A) Nitrogen fixation under aerobic conditions
(B) Nitrogen fixation under anaerobic conditions
(C) Formation of internal hormogonia
(D) Saprotrophism

Question No:4

Unicellular organisms that divide by binary fission are

(A) Viruses
(B) An independent group between viruses and bacteria
(C) Fungi
(D) Bacteria

Question No:5

When bacteria are rod like, they are called

(A) Bacilli
(B) Cocci
(C) Spirilla
(D) Vibrios

Question No:6

A cubical packet of 8 cocci is called

(A) Sarcina
(B) Spirillum
(C) Staphylococcus
(D) Vibrio

Question No:7

The major part of cell wall of monerans (Bacteria and Cyanobacteria) is made up of a polymer called

(A) Peptidoglycan
(B) Mucopeptide
(C) Glycopeptide or murein
(D) all the above

Question No:8

A pure (Axenic) culture is

(A) A culture of microbe having multiple copies of a single kind of microbe
(B) A culture without any contamination
(C) both (a) and (b)
(D) None

Question No:9

Bacteria continue to live under conditions which resemble the conditions that prevailed on primitive earth, are

(B) Archaebacteria
(C) Cyanobacteria
(D) Prokaryotic bacteria

Question No:10

Archaebacteria are

(A) heterotrophic and anaerobic
(B) chemotrophic
(C) decomposers and mineralisers
(D) all of the above

Question No:11

The experiments performed under controlled conditions in research laboratory are called

(A) in vivo
(B) in vitro
(C) phytotrons
(D) in situ

Question No:12

Red sea is red due to

(A) red tides by Protistans
(B) red alga like Sargassum
(C) blue green alga like Trichodesmium
(D) iron salts in Gonyaulax

Question No:13

One of the reasons to include cyanophyceae (cyanobacteria) in prokaryotes is

(A) presence of mucilage sheath
(B) Absence of nuclear membrane
(C) presence of sexuality
(D) absence of flagellation

Question No:14

A spiral cyan bacterium, cultivated in water tanks as protein rich food is

(A) Spirillum
(B) Spirulina
(C) Nostoc
(D) Chlorella

Question No:15

Cyanobacteria are characterized by

(A) ability to perform oxygenic photosynthesis and absence of Nitrogenase
(B) ability to perform oxygenic photosynthesis and presence of Nitrogenase
(C) have chlorophyll in chloroplast
(D) ability to perform anoxygenic photosynthesis and presence of Nitrogenase

Question No:16

Photosynthetic bacteria have pigments in

(A) chromatophores
(B) leucoplast
(C) chromoplast
(D) chloroplast

Question No:17

Bacterial cell membrane has

(A) Chitin
(B) Cellulose
(C) proteins and phospholipids
(D) Acetyl glucosamine and muramic acid

Question No:18

Plastids are totally absent in

(A) Fungi
(B) Blue green algae
(C) Bacteria
(D) all of these

Question No:19

Bacteria lack

(A) Cell wall
(B) Cell membrane
(C) Ribosomes
(D) Mitochondria

Question No:20

One bacterium used extensively in genetic engineering as vector for the transfer to genetic material is

(A) Agrobacterium tumefaciens
(B) Bacillus thuringiensis
(C) Clostridium septicum
(D) Xanthomonas citri