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Assertion : Chloroplasta occur inside th...

Assertion : Chloroplasta occur inside the leaves mostly in mesophyll cells along their walls.
Reason: The membrane system of chloroplast is responsible for trapping the light energy and also for the synthesis of ATP and NADPH.

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In the given statements (i-iv) i) The chlorophyll a is yellow green in colour and chlorophyll b is blue green in colour. ii) Both photosystems absorb more amount of red wavelength. iii) In moderate light, the chloroplasts arrange themselves with their flat surfaces perpendicular to the incident light while during strong illumination, they are parallel to the incident light. iv) The stroma of chloroplast is responsible for trapping the light energy and also for synthesis of ATP and NADPH. Find out the correct statements

Identify the correct statement w.r.t. the given cell A. Concerned with lipid and steroidal hormone synthesis B. Outer non- living rigid structure which gives shape to the cell and protects from mechanical damage and infaction . C. Both lie perpendicular to each other and each has an organisation like the cart wheel . D. Responsible for trapping light energy for the synthesis of sugar. E. Present in cells actively involved in protein synthesis and secretion. F. Spherical structures rich in hydrolytic enzymes.

Assertion: The external factors that affected photosynthesis are number, size age and orientation of leaves, mesophyll cells and chloroplasts and the amount of chlorophyll. Reason: The internal factors that affect photosynthesis are availability of sunlight, temperature CO_(2) concentration and water.

There are two important fuels A and B both of which are extracted from deep inside the earth. Fuel A is a thick, dark, foul smelling liquid whereas fuel B is a black solid. Combustion of both the fuels produces products, C, D, E and F. The product C makes the rainwater only slightly acidic but it is mainly responsible for causing global warming. The product D is neither acidic nor basic. It is harmless and does not affect the environment in any way. Both E and F attack breathing system of humans and are mainly responsible for causing acid rain. In addition to combustion of fuels A and B, the product F is also formed when lightning occurs in the sky. (a) What are (i) fuel A, and (ii) fuel B ? (b) Name (i) C (ii) D (iii) E, and (iv) F (c ) What is the process of formation of F during lightning known as ? (d) Which fuel is supposed to be exhausted sooner : A or B ? (e) Which fuel is mostly used for generating electricity at thermal power plants ?

Assertion :- Cells oxidise glucose and other respiratory substances not in one step, but in several small steps. Reason:- Oxidation in multiple steps enabling some steps to be just large enough such that the energy released can be coupled to ATP synthesis.

Assertion (A) Most mineral must enter the root by the active absorption into the cytoplasm of epidermal cells. Reason (R ) This transportation needs energy in the form of ATP . Some ions also move into the epidermal cells passively.

Assertion: The ground tissue system forms the main bulk of the plant It is divided into three zones - cortex pericycle and pith Reason: In leaves, the ground tissue consists of thin walled chloroplast containing cells and is called mesophyll

NCERT FINGERTIPS-PHOTOSYNTHESIS IN HIGHER PLANTS-Photosynthesis In Higher Plants
  1. Splitting of water is associated with

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  2. The correct sequency of flow of electons in the light reaction is

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  3. The enzyme that is not found in a C(3) plant is

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  4. The reaction that is responsible for the primary fixation of CO(2) is ...

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  5. When CO(2) is added to PEP. The first stabel product synthesised is

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  6. Assertion : Chloroplasta occur inside the leaves mostly in mesophyll c...

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  7. Assertion: The color of the leaf is due to the presence of four pigmen...

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  8. Assertion: The splitting of water is associated with PS II. Reason: ...

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  9. Assertion: The stoma lamellae have both PS I and PS II. Reason: The ...

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  10. Assertion: The proton gradient is broken down due to the movement of p...

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  11. Dark reactions are called biosynthetic phase of photosynthesis. Reas...

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  12. Assertion: The first product of CO(2) fixation in C(3) pathway is OA A...

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  13. Assertion: The C(4) plants have a speical type of leaf anatomy calle...

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  14. Assertion : The primary CO(2) acceptor in C(4) pathway is 3-carbon mol...

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  15. Assertion: In C(4) plants, the bundle sheath cells are rich in an enzy...

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  16. Assertion: In C(4) plants, photorespiration does not occurs. Reason:...

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  17. Assertion: Photorespiration is a wasteful process. Reason: In photor...

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  18. Assertion: The external factors that affected photosynthesis are numbe...

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  19. Assertion: C(3) plants respond to increased CO(2) concentration by inc...

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  20. Assertion: Tropical plants have a higher optimum temperature for phots...

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