Arrange the following events occurring in Renin-Angiotensin mechanism in the correct order:
Choose the correct answer from the options given below:
(1) C, E, D, B, A
(2) A, C, E, B, D
(3) A, D, B, E, C
(4) C, A, B, D, E
| A. | Increase in blood pressure and Glomerular filtration rate. |
| B. | Reabsorption of Na+ and water from distal parts of tubule due to Aldosterone. |
| C. | Fall in Glomerular filtration rate. |
| D. | Vasoconstriction by Angiotensin II and release of Aldosterone. |
| E. | Renin converts Angiotensinogen into Angiotensin I, followed by Angiotensin II. |
Choose the correct answer from the options given below:
(1) C, E, D, B, A
(2) A, C, E, B, D
(3) A, D, B, E, C
(4) C, A, B, D, E
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Choose the correct statements regarding population interactions between two species.
Choose the correct answer from the options given below:
1. B and E only
2. B, D and E only
3. A and B only
4. A and D only
| A. | In both parasitism and commensalism, only one species benefits and the other species is harmed. |
| B. | Both species benefit in mutualism. |
| C. | Both species benefit in commensalism. |
| D. | In parasitism, only one species benefits and the other species is harmed. |
| E. | In amensalism, one species is harmed an |
Choose the correct answer from the options given below:
1. B and E only
2. B, D and E only
3. A and B only
4. A and D only
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Spermatogonia undergo a series of cell divisions to produce sperms. Select the correct statements from the following:
Choose the correct answer from the options given below:
1. C and E only
2. A, C and E only
3. B, C and D only
4. A and E only
| 1. | Spermatogonia always undergo mitosis |
| 2. | Primary spermatocytes divide mitotically to produce secondary spermatocytes |
| 3. | Secondary spermatocytes, through their second meiotic division, produce haploid spermatids. |
| 4. | Spermatids transform into spermatozoa by spermiogenesis. |
Choose the correct answer from the options given below:
1. C and E only
2. A, C and E only
3. B, C and D only
4. A and E only
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The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order.
Choose the correct answer from the options given
below
1. E, D, B, A, C
2. C, A, B, D, E
3. A, B, C, D, E
4. E, C, D, B, A
| A. | The parasites reproduce asexually in RBCs, bursting the cells. |
| B. | The parasites reproduce asexually in liver cells, bursting the cells and releasing into blood. |
| C. | Gametocytes develop in RBCs. |
| D. | Sporozoites reach the liver through the blood. |
| E. | Female mosquito injects sporozoites into humans during bite. |
Choose the correct answer from the options given
below
1. E, D, B, A, C
2. C, A, B, D, E
3. A, B, C, D, E
4. E, C, D, B, A
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-III, C-I, D-IV
2. A-IV, B-III, C-II, D-I
3. A-II, B-III, C-IV, D-I
4. A-III, B-II, C-IV, D-I
| List I (Bioactive molecules) |
List II (Importance) |
||
| A. | Streptokinase | I. | Immunosuppressive agent |
| B. | Stains | II. | Removal of clots from the blood vessels |
| C. | Lipases | III. | Blood cholesterol-lowering agent |
| D. | Cyclosporin A | IV. | lowering agent |
1. A-II, B-III, C-I, D-IV
2. A-IV, B-III, C-II, D-I
3. A-II, B-III, C-IV, D-I
4. A-III, B-II, C-IV, D-I
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Which of the following is not an example of convergent evolution ?
| 1. | Wings of butterflies and birds |
| 2. | Flippers of penguins and dolphins |
| 3. | Fore limbs of whales and bats |
| 4. | Eyes of octopuses and mammals |
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What is the reason behind production of large holes in 'Swiss Cheese'?
| 1. | The production of large amount of \(CO_2\) and \(H_2\) by Trichoderma polysporum |
| 2. | The production of large amount of \(CO_2\) by Clostridium butylicum |
| 3. | The production of large amount of \(CO_2\) and \(H_2\) by lactic acid bacteria called Lactobacillus |
| 4. | The production of large amount of \(CO_2\) by Propionibacterium sharmanii |
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Match List I with List II :
Choose the correct answer from the options given
below:
(1) A-III, B-II, C-IV, D-I
(2) A-IV, B-II, C-I, D-III
(3) A-II, B-III, C-I, D-IV
(4) A-II, B-III, C-IV, D-I
| List I | List II | ||
| A. | Cortisol | I. | Stimulates the formation of alveoli in mammary glands |
| B. | Aldosterone | II. | Produces anti-inflammatory reactions |
| C. | Cholecystokinin | III. | Stimulates reabsorption of Na+ and water from renal tubul |
| D. | Progesterone | IV. | Stimulates secretion of pancreatic enzymes and bile juice |
Choose the correct answer from the options given
below:
(1) A-III, B-II, C-IV, D-I
(2) A-IV, B-II, C-I, D-III
(3) A-II, B-III, C-I, D-IV
(4) A-II, B-III, C-IV, D-I
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Arrange the following cell layers/structures around the female gamete, from outer to inner side:
A. Zona pellucida
B. Perivitelline space
C. Corona radiata
D. Plasma membrane of ovum
Choose the correct answer from the option given below:
1. C, A, D, B
2. C, A, B, D
3. D, B, A, C
4. A, C, B, D
A. Zona pellucida
B. Perivitelline space
C. Corona radiata
D. Plasma membrane of ovum
Choose the correct answer from the option given below:
1. C, A, D, B
2. C, A, B, D
3. D, B, A, C
4. A, C, B, D
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Which of the following equations depicts Verhulst-Pearl logistic population growth?
\(\text { 1. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}-\mathrm{N}}{\mathrm{~N}}\right )\)
\(\text { 2. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}-\mathrm{N}}{\mathrm{~K}}\right)\)
\(\text { 3. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}}{\mathrm{~K}-\mathrm{N}}\right)\)
\(\text { 4. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}+\mathrm{N}}{\mathrm{~K}}\right)\)
\(\text { 1. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}-\mathrm{N}}{\mathrm{~N}}\right )\)
\(\text { 2. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}-\mathrm{N}}{\mathrm{~K}}\right)\)
\(\text { 3. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}}{\mathrm{~K}-\mathrm{N}}\right)\)
\(\text { 4. } \dfrac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{~K}+\mathrm{N}}{\mathrm{~K}}\right)\)
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