Introduction To Biology Mcqs

Solved MCQs For Mcat Test Preparation with examination questions on molecular biology. All exams in which biology MCQs objective type are included here you can easily prepared exams online with these question answers. 11th std biology question bank are also in these exams tests.

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Solved Cell Biology Test Question Answers

Q.1: Intelligence is under the control of------- ?

1. Cerebrum
2. Cerebellum
3. Thalamus
4. Hypothalamus

A

Q.2: Which of the following is a chemical link between catabolism and anabolism ?

1. AMP
2. ADP
3. ATP
4. All of these

C

Q.3: Reflex actions below the neck are under control of------- ?

1. Brain
2. Spinal cord
3. Hypothalamus
4. none of these.

B

Q.4: Each turn of DNA contain ------------ nitrogenous base pairs ?

1. 5
2. 10
3. 20
4. 25

B

Q.5: helical structure is kept by the formation of --------- bonds among amino acids molecules ?

1. H bonds
2. Disulphide Bond
3. Ionic bond
4. Hydrophobic bonds

A

Q.6: All of the following veins carry deoxygenated blood except ?

1. Superior vena cava
2. Inferior vena cava
3. Hepatic vein
4. Pulmonary vein

D

Q.7: Exposure to low temperature stimulates plants to flower. This is called-------- ?

1. Photoperiodism
2. Thermotropism
3. Vernalisation
4. Thermoregulation

C

Q.8: In living organisms the lubricant which provides protection against damage resulting from friction is------ ?

1. Carbohydrates
2. Fatty acid
3. Water
4. Protein

C

Q.9: Interconversion of carbohydrates proteins and lipids in living cells are an example of------- ?

1. Coordinated catabolic activities
2. Coordinated anabolic activities
3. Both A and B
4. Any one

C

Q.10: rRNA constitutes ------------% of the total cellular RNA ?

1. 3-4 %
2. 10-20%
3. 80%
4. 90%

C

Q.11: Five kingdom classification was proposed by-------- ?

1. Carlous Linnaeus
2. E-Chatton
3. Robert Whittaker
4. Lynn Margulis and Karlene Schwartz

C

Q.12: The structure which has been formed or modified from gill pouches in humans is----- ?

1. Gills
2. Eustachian tube
3. Middle ear
4. Lungs

B

Q.13: Animals with greatest number of similarities are grouped together in a/an------- ?

1. Phylum
2. Family
3. Genus
4. Order

C

Q.14: Kangaroo rat most probably would be found in------- ?

1. Tropical rain forest
2. Tundra
3. Grass land
4. Desert

D

Q.15: Protein coat the capsid of adenovirus is-------- ?

1. Surrounded by genome
2. Surrounding genome
3. Surrounding the envelope
4. Both B and C

B

Q.16: An enzyme which can convert single stranded RNA into double stranded viral DNA is called------- ?

1. DNAase
2. RNAase
3. DNA polymerase
4. Reverse Transcriptase

D

Q.17: Temperate phage may exist as--------- ?

1. Prophage
2. Capsid
3. Viron
4. Retrovirus

A

Q.18: Deficiency of K+ causes---------- ?

1. Stunted growth & strong chlorosis
2. No electron transport chains
3. Premature death of leaves
4. Stunted growth of roots

C

Q.19: One of the commonest cause of food poisoning are the toxins produced by-------- ?

1. Azobacter
2. Nitrosomonas
3. Campylobacter
4. Nitrobacter

C

Q.20: The leaf is bilobed with midrib between them. The plant is------- ?

1. Saraccnia
2. Dionaea
3. Pitcher plant
4. None of these

B