Refer section 11.1.1 of your NCERT. What peculiarity does NCERT mention regarding diffusion and solids ?
1. It does not occur in solids
2. It is more easily visualized in solids
3. It requires expenditure of external energy and occurs against concentration gradient
4. Diffusion in solids rather than of solids is more likely.

Subtopic:  Diffusion |
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Which one of the following will not directly affect transpiration?

1. Temperature 2. Light
3. Wind speed 4. Chlorophyll content of leaves
Subtopic:  Transpiration Pull: Illustration |
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The process of guttation takes place
1. When the root pressure is high and the rate of transpiration is low
2. When the root pressure is low and the rate of transpiration is high
3. When the root pressure equals the rate of transpiration
4. When the root pressure as well as rate of transpiration are high

Subtopic:  Transpiration & Guttation |
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When a plant undergoes senescence, the nutrients may be
1. Exported
2. Withdrawn
3. Translocated
4. None of the above

Subtopic:  Phloem Translocation |
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Mycorrhiza is a symbiotic association of fungus with root system which helps in:

A. Absorption of water B. Mineral nutrition
C. Translocation D. Gaseous exchange
Options:
1. Only A 2. Only B
3. Both A and B 4. Both B and C
Subtopic:  Water Absorption |
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Based on the figure given below, which of the following statement is not correct?
 

1. Movement of solvent molecules will take place from chamber A to B
2. Movement of solute will take place from A to B
3. Presence of a semipermeable is a prerequisite for this process to occur
4. The direction and rate of osmosis depends on both the pressure gradient and concentration gradient

Subtopic:  Plant Water Relations: Water Potential: DPD |
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Match the following and choose the correct option:

A.Leaves

i. Anti-transpirant

B.Seed

ii.Transpiration

C.Roots

iii.Negative osmotic potential

D. Aspirin

iv.Imbibition

E.Plasmolyzed cell

v.Absorption

Options:
1. A-iii, B-iv, C-i, D-v, E-ii
2. A-ii, B-iv, C-v, D-i, E-iii
3. A-iii, B-ii, C-iv, D-v, E-i
4. A-iii, B-ii, C-i, D-iv, E-v

Subtopic:  Introduction | Diffusion | Ascent of Sap | Transpiration & Guttation |
 92%
From NCERT
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Mark the mismatched pair :

1. Amyloplast

i. Store protein granule

2. Elaioplast

ii. Store oils or fats

3.Chloroplasts

iii. Contain chlorophyll pigments                 

4. Chromoplasts

iv. Contain coloured pigments other than chlorophyll

Subtopic:  Eukaryotic Cell Orgenelle |
 82%
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Electron transport chain in mitochondria uses the reduction energy of NADH to move protons across the inner mitochondrial membrane against their concentration gradient. This is an example of:
1. Facilitated diffusion
2. Forward osmosis
3. Primary active transport
4. Secondary active transport

Subtopic:  Means of Transport: Active |

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Identify the incorrect statement regarding aquaporins:
1. Water channels are transmembrane proteins made up of eight different types of aquaporins.
2. Water moves most rapidly in tissues that have aquaporin water channels.
3. The presence of water channels increases membrane permeability to water.
4. Aquaporins selectively conduct water molecules in and out of the cell but allow some passage of protons.

Subtopic:  Facilitated Diffusion |
 64%
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