- 1(current)
Q. No.| Assertion (A): | During secondary growth in a dicot stem, the amount of secondary phloem produced is more than secondary xylem. |
| Reason (R): | The cambium is more active on the outer than on the inner side. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Â Dicot Stem |
 66%
Level 2: 60%+
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Please attempt this question first.
Match each item in Column-I with one in Column-II and select the correct match from the codes given:
Codes:
| Column-I | Column-II | ||
| A. | Dicot stem | P. | Vascular bundles are arranged in a ring |
| B. | Monocot stem | Q. | Pith is small or inconspicuous |
| C. | Dicot root | R. | Vascular bundles are many and scattered in the ground tissue with no definite arrangement. |
| D. | Monocot root | S. | Pith is large and well developed |
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | S | Q | R | P |
| 3. | P | R | Q | S |
| 4. | R | P | S | Q |
Subtopic: Â Anatomy of Root |Â Dicot Stem |Â Monocot Stem |
 82%
Level 1: 80%+
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| Assertion (A): | Dicotyledonous stems possess the ability to form secondary xylem and phloem tissues. |
| Reason (R): | In dicotyledonous stems, cambium is present between pericycle and xylem. |
Choices for Assertions and reasons:
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A). |
| 3. | (A) is True, but (R) is False. |
| 4. | (A) is False, but (R) is True. |
Subtopic: Â Dicot Stem |
 68%
Level 2: 60%+
Hints
Give below are two statements :
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body. |
| Statement II: | Exarch condition is the most common feature of the root system. |
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Â Dicot Stem |
 59%
Level 3: 35%-60%
NEET - 2023
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- 1(current)
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