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CHAPTER 6: ANATOMY OF FLOWERING PLANTS

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Question 1 of 15

1. Question
Read the different components from (i) to (iv) in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem.

(i) Secondary cortex (ii) Wood

(iii) Secondary phloem (iv) Phellem

The correct order is
- (iv), (i), (iii), (ii)
- (iv), (iii), (i), (ii)
- (iii), (iv), (ii), (i)
- (i), (ii), (iv), (iii).
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Question 2 of 15

2. Question
Tracheids differ from other tracheary elements in
- Having casparian strips
- Being imperforate
- Lacking nucleus
- Being lignified.
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Question 3 of 15

3. Question
Which of the following statements is not true for stomatal apparatus?
- Guard cells invariably possess chloroplasts and mitochondria.
- Guard cells are always surrounded by subsidiary cells.
- Stomata are involved in gaseous exchange.
- Inner wall of guard cells are thick.
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Question 4 of 15

4. Question
Passage cells are thin walled cells found in
- Phloem elements that serve as entry points for substance for transport to other plant parts
- Testa of seeds to enable emergence of growing embryonic axis during seed germination
- Central region of style through which the pollen tube grows towards the ovary
- Endodermis of roots facilitating rapid transport of water from cortex to pericycle.
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Question 5 of 15

5. Question
A major characteristic of monocot root is the presence of
- Vasculature without cambium
- Cambium sandwiched between phloem and xylem along the radius
- Open vascular bundles
- Scattered vascular bundles.
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Question 6 of 15

6. Question
- A – Epidermis, B – Spongy parenchyma, C – Palisade parenchyma, D – Stomata, E – Guard cells, F – Phloem, G – Metaxylem, H – Protoxylem
- A – Epidermis, B – Palisade parenchyma, C – Spongy parenchyma, D – Sub-stomatal cavity, E – Stoma, F – Phloem, G – Metaxylem, H – Bundle sheath
- A – Epidermis, B – Palisade parenchyma, C – Spongy parenchyma, D – Stomata, E – Guard cells, F – Epidermis, G – Xylem, H – Phloem
- A – Epidermis, C – Palisade parenchyma, C – Spongy parenchyma, D – Stomata, E – Guard cells, F – Phloem, G – Metaxylem, H – Protoxylem
Correct

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Question 7 of 15

7. Question
Which of the following statement(s) is/are true?

A. Uneven thickening of cell wall is characteristic of sclerenchyma.

B. Periblem forms cortex of the stem and the root.

C. Tracheids are the chief water transporting elements in gymnosperms.

D. Companion cell is devoid of nucleus at maturity.

E. The Commercial cork is obtained from Quercus suber.
- A and D only
- B and E only
- C and D only
- B, C and E only
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Question 8 of 15

8. Question
Meristematic tissue responsible for increase in girth of tree trunk is
- Apical meristem
- Intercalary meristem
- Lateral meristem
- Phellogen
Correct

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Question 9 of 15

9. Question
Root hair develop from the region of
- Elongation
- Root cap
- Meristematic activity
- Maturation
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Question 10 of 15

10. Question
Identify the wrong statement in context of heartwood.
- It is highly durable.
- It conducts water and minerals efficiently.
- It comprises dead elements with highly lignified walls.
- Organic compounds are deposited in it.
Correct

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Question 11 of 15

11. Question
- A – Root hair, B – Epiblema, C – Cortex,D – Endodermis, E – Passage cell,F – Pericycle,G – Pith, H – Phloem, I – Metaxylem,J – Protoxylem
- A – Root hair, B – Epiblema, C – Cortex,D – Endodermis, E – Passage cell,F – Pith,G – Pericycle, H – Metaxylem, I – Phloem,J – Protoxylem
- A – Root hair, B – Epiblema, C – Cortex,D – Endodermis, E – Pericycle,F – Passage cell,G – Phloem, H – Pith, I – Protoxylem,J – Metaxylem
- A – Root hair, B – Cortex, C – Epiblema,D – Pericycle, E – Endodermis, F – Pith,G – Passage cell, H – Phloem, I – Protoxylem, J – Metaxylem
Correct

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Question 12 of 15

12. Question
- A – Epidermis, B – Hypodermis,C – Vascular bundles, D – Phloem,E – Xylem, F – Ground tissue
- A – Cuticle, B – Epidermis,C – Sclerenchymatous sheath,D – Sclerenchymatous hypodermis,E – Parenchymatous sheath, F – Phloem,
- A – Cuticle, B – Epidermis,C – Sclerenchymatous hypodermis,D – Sclerenchymatous sheath,E – Parenchymatous sheath, F – Phloem,
- A – Cuticle, B – Epidermis,C – Sclerenchymatous hypodermis,D – Sclerenchymatous sheath,E – Parenchymatous sheath,F – Protoxylem
Correct

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Question 13 of 15

13. Question
- A – Leaf prsimordium,B – Shoot apical meristem,C – Axillary bud
- A – Leaf primordium,B – Shoot apical meristem,C – Apical bud
- A – Root hair primordiumB – Root apical meristem,C – Axillary bud
- A – Root hair primordium,B – Root apical meristem,C – Terminal bud
Correct

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Question 14 of 15

14. Question
Which of the following statement(s) is/are correct about Dorsiventral (dicotyledonous) leaf ?

i) The adaxial (upper surface) bears more stomata than the abaxial (lower surface) epidermis.

ii) Mesophyll, which possesses chloroplasts and carry out photosynthesis, is made up of parenchyma.

iii) Mesophyll is not differentiated into palisade and spongy parenchyma.
- Both (i) and (iii)
- Only (ii)
- Only (iii)
- All of these
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Question 15 of 15

15. Question
Radioactive tracer studies with 14C have confirmed that
- Phloem transports organic nutrients
- Xylem transports organic nutrients
- Phloem transports inorganic nutrients
- Xylem transports inorganic nutrients
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