41). The phenomenon by which water molecules move from a weaker solution to a stronger solution through a semi-permeable membrane is called :
A). Diffusion |
B). Osmosis |
C). Transpiration |
D). Translocation |
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42). In the human eye, the focussing is done by :
A). to and fro movement of the eye lens |
B). to and fro movement of the retina |
C). change in the convexity of the eye lens |
D). change in the refractive index of the eye fluids |
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43). Match the following : Disease Organism A. Cholera 1. Bacterium B. Mumps 2. Fungus C. Ringworm 3. Protozoa D. Sleeping sickness 4. Virus A B C D
A). 1 4 2 3 |
B). 1 2 4 3 |
C). 3 4 2 1 |
D). 3 2 4 1 |
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44). Consider the following vitamins : 1. Niacin 2. Pyridoxin 3. Riboflavin 4. Thiamine Which of these are water-soluble vitamins?
A). 1, 2 and 3 |
B). 2, 3 and 4 |
C). 1 and 4 |
D). 1, 2, 3 and 4 |
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45). Match the following : A. Theory of Mutation 1. Beadk and Tatum B. Theory of Evolution 2. Jacob and Monod C. One gene one enzyme hypothesis 3. Darwin D. Operon concept 4. DeVries A B C D
A). 3 4 1 2 |
B). 4 3 1 2 |
C). 4 3 2 1 |
D). 3 4 2 1 |
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46). Which one of the following statements regarding starch and cellulose is NOT correct?
A). Both of them are of plant origin |
B). Both of them are polymers |
C). Both of them give colour with iodine |
D). Both of them are made up of glucose molecules |
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47). Which one of the following techniques can be used to establish the paternity of a child?
A). Protein analysis |
B). Chromosome counting |
C). Quantitative analysis of DNA |
D). DNA finger printing |
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48). In human body, the pancreas secretes its enzymes into which one of the following?
A). Duodenum |
B). Ileum |
C). Jejunum |
D). Stomach |
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49). Among the following food items, which one has the highest amount of carbohydrates?
A). Apple |
B). Banana |
C). Cabbage |
D). Pea |
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50). Which among the following is the richest source of ascorbic acid?
A). Apple |
B). Bean |
C). Carrot |
D). Guava |
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