- 1(current)
Q. No.| A: | Lenticels are the lens-shaped openings permitting the exchange of gases. |
| B: | Bark formed early in the season is called hard bark. |
| C: | Bark is a technical term that refers to all tissues exterior to vascular cambium. |
| D: | Bark refers to periderm and secondary phloem. |
| E: | Phellogen is single- layered in thickness. |
| 1. | B and C only | 2. | B, C and E only |
| 3. | A and D only | 4. | A, B and D only |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct statements related to the activity of cork cambium:
| 1. | The outer cells differentiate into phelloderm. |
| 2. | The cork differentiated from cork cambium, is impervious to water due to deposition of tannins and resins. |
| 3. | Cuts the cells only on the outer side. |
| 4. | Cuts the cells on inner as well as outer side. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch List-I with List-II.
| List-I | List-I | ||
| (a) | Lenticels | (i) | Phellogen |
| (b) | Cork cambium | (ii) | Suberin deposition |
| (c) | Secondary cortex | (iii) | Exchange of gases |
| (d) | Cork | (iv) | Phelloderm |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iv) | (ii) | (i) | (iii) |
| 3. | (iv) | (i) | (iii) | (ii) |
| 4. | (iii) | (i) | (iv) | (ii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements about cork cambium is incorrect?
| 1. | It forms a secondary cortex on its outside |
| 2. | It forms a part of periderm |
| 3. | It is responsible for the formation of lenticels |
| 4. | It is a couple of layers thick |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLenticels are involved in:
1. Gaseous exchange
2. Food transfer
3. Photosynthesis
4. Transpiration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. phellogen
2. periderm
3. phellem
4. phelloderm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe main function of lenticel is:
1. Transpiration
2. Guttation
3. Gaseous exchange
4. Bleeding
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe periderm includes:
1. Secondary phloem
2. Cork
3. Cambium
4. All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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