National Standard Examination in Biology (NSEB) Solved Paper 2016 Part-12

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Q: 74. Arrange the following biomolecules in an increasing order of rate of passing through plasma membrane

(i) Triglycerides

(ii) Fructose

(iii)

(iv) Urea

(A)

(B)

(C)

(D)

Answer: (C)

Q: 75. Gel electrophoresis of DNA of two bacterial strains A & B is done. It showed band pattern as follows. What could be the probable reason/s for two DNA bands in strain B:

(i) DNA in strain B is fragmented while extraction

(ii) DNA in strain B is duplicated

(iii) Strain B is harboring plasmid DNA

Q 75 Image of Gel Electrophoresis of Bacterial Pattern

Q 75 Image of Gel Electrophoresis of Bacterial Pattern

Q 75 Image of Gel Electrophoresis of Bacterial Pattern

(A)

(B)

(C)

(D)

Answer: (B)

Q: 76. A botanist collected leaf specimen from two different plants He then took transverse sections of both the specimens stained and observed them under the microscope. The observations are tabulated below.

Q_76_Table of Leaf from Plant
Q_76_Table of Leaf from Plant

Leaf from Plant

Stomata on

Cuticle

Air Spaces

Upper Epidermis

Lower Epidermis

Upper Epidermis

Lower Epidermis

I

Present

Absent

Present

Absent

Present

II

Absent

Present

Present

Present

Absent

The plants could respectively represent

(A) Xerophyte and Mesophytes

(B) Xerophyte and Floating hydrophyte

(C) Mesophyte and Submerged hydrophyte

(D) Floating hydrophyte and Xerophyte

Answer: (D)

Q: 77. Temperature related metabolic response of an animal is shown in the accompanying graph. Which of the following is the correct description of regions a, b or c:

Q 77 Image of Heterothermy

Q 77 Image of Heterothermy

Q 77 Image of Heterothermy

(A) Energy expended to lose excess heat: b + c

(B) Energy required to maintain body temperature: a

(C) Endothermy: b & Ectothermy: a

(D) Heterothermy: a, b & c

Answer: (D)

Q: 78. For an unclothed man, Following are the skin & rectal temperature when ambient temperature is 30° C

What will be the temperatures when ambient temperature is 20°C & 40°C respectively?

(A)

(B)

(C)

(D)

Answer: (D)

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