MDCAT Biology Chapter 3 MCQ Test With Answer for (Biological Molecules)

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MCQ's Test For MDCAT Biology Chapter 3 MCQ's Test

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MDCAT Biology Chapter 3 MCQ's Test

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Question # 1

Which of the following reasons seems to be most reasonable for not placing protists in other kingdoms" 

Question # 2

The smallest bacteria is:

Question # 3

Prions may be simply infectious

Question # 4

Red rot is disease of

Question # 5

Diplococcus pneumoniae is an example of which of the following type of arrangement in bacteria

Question # 6

Procedure used to eliminate or reduce the possibility of infection is termed

Question # 7

Which effect kills the microbe immediately

Question # 8

In ecto mycorrhizae, the hyphae surround and extend between the cells but do not penetrate the cell walls of the:

Question # 9

All fungi can reproduce sexually except

Question # 10

When division occurred in random planes it will produce a:

Question # 11

In general appearance which phages are Icosahedral

Question # 12

The response of chemical signals by flagellated bacteria is known as

Question # 13

Process in which physical agents are used to control bacteria

Question # 14

Zygospores are found is:

Question # 15

About 95% of all kinds of vascular plants form mycorrhizal associations with:

Question # 16

Chemical substances used on living tissues to inhibit growth of bacteria is called

Question # 17

Examples of spiral shaped bacteria are:

Question # 18

Gametangia of the fungus are

Question # 19

Cytoplasm of prokaryotes lacks

Question # 20

-------- have played infamous roles in human history as they were the cause of Irish potato famine of the 19th century.

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Sr.# Question Answer
1 Saprotrophs (saprobes) are decomposers that obtain their food directly from:
A. Living host
B. Living guest
C. Dead organic matter
D. Inorganic matter
2 Which viruses consist of head and tail
A. Adenoviruses
B. Virions
C. Polioviruses
D. Bacteriophages
3 Protista or protoctista is one of the five Kingdom and includes:
A. Protozoa
B. Algae
C. Slime and water molds
D. Al a, b, c
4 Those bacteria which can exist in a variety of shapes
A. Facultative
B. Polymorphic
C. Pleomorphic
D. All of these
5 Which of the fungus is commonly employed in experimental genetics?
A. Puccinia
B. Mushroom
C. Neurospora
D. Penicillium
6 Without fungi there would have been:
A. No life
B. No diseases
C. No nutrient cycling
D. Bioremediation 
7 The photosynthetic system of cyanobacteria closely resembles that of eukaryotes because they have:
A. Chlorophyll a
B. Photosystem II
C. Xanthophylls
D. Both a & b
8 During Gram staining positive bacteria are stained
A. Purple
B. Pink
C. Blue
D. Red
9 In Basidiomycota four haploid sexual spores, called the-------, are borne on each basidium.
A. ascospores
B. Conidiophores
C. Basidiospores
D. Zygospores
10 The ribosomes in bacterial cell are
A. Same as in eukaryotic cell
B. Larger than those in eukaryotic cell
C. Smaller than those in eukaryotic cell
D. Absent
11 Some species of Aspergillus are used fermenting/producing soy sauce and soy paste from:
A. Pea
B. Soybean
C. Tomato
D. Potato
12 ...... is a micraerophilic bacterium.
A. Nitrobacter
B. Spirocheta
C. Pseudomonas
D. Campylobacter
13 The cell wall consists of two shells that overlap like a petridish:
A. Foraminifera
B. Actinopods
C. Slime molds
D. Diatoms
14 The mutualistic association between certain fungi and roots of vascular plant is called
A. parasitism
B. lichens
C. mycorrhizae
D. budding
15 Ciliates are unicellular organisms with a flexible outer covering called a:
A. pellicle
B. skin
C. Ectoderm
D. Integument
16 In Binary fission, parent cell
A. Shrinks
B. Enlarges
C. Looses cell wall
D. Becomes dormant
17 Process in which physical agents are used to control bacteria
A. Antisepsis
B. Chemotherapy
C. Vaccination
D. Sterilization
18 Which is a delicacy?
A. Rust
B. Penicillium
C. Truffles
D. Yeast
19 Wall of diatoms is composed of:
A. Cellulose
B. Peetin
C. Silica
D. Both silica and cellulose
20 Rust spot appear mostly on which part of plant?
A. Root
B. Grain
C. Flowers & kernels
D. Stem and leaves

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