Embibe Experts Solutions for Chapter: Photosynthesis in Higher Plants, Exercise 1: TS EAMCET Medical 2018 (02 May Shift-1)

Assertion (A): When a green alga Cladophora is placed in a suspension of aerobic bacteria, on the illumination of different lights, only at the blue and red light bacteria accumulated.
Reason (R): The bacteria release O₂ by the process of photosynthesis.
The correct option among the following is:

Match the following lists.

The correct match is:

Assertion (A): Chromatographic separation of leaf pigments shows that leaves has four different pigments.

Reason (R): Pigments absorb light at specific wavelengths and help in the process of photosynthesis. The major leaf pigments are chlorophyll-a, chlorophyll-b, xanthophylls and carotenoids. 

The correct option among the following is:

How many matured trees are required to support the supply of oxygen to 42,000 people in a year?

Assertion (A): Electrons released from the photosystem are used by the electron transport chain during photophosphorylation.
Reason (R): Movement of electrons from pheophytin to the PS-I reaction centre is an oxidation-reduction reaction.
The correct option among the following is:

Choose the correct statements.
(A) Photorespiration is the synthesis of neither sugar nor ATP rather the release of ${\mathrm{O}}_2$.
(B) CAM metabolism is an alternative to ${\mathrm{C}}_3$ and ${\mathrm{C}}_4$ pathways of ${\mathrm{CO}}_2$ fixation in plants in dry and hot climates.
(C) Bundle sheath cells are having many chloroplasts, thick walls with no intercellular space.
(D) After World War II photosynthetic studies were exemplary.

Identify the differences between ${\mathrm{C}}_3$ and ${\mathrm{C}}_4$ plants among the following characters

A) Photorespiration rate
B) Activity of RuBisCO
C) Type of light reactions
D) ${\mathrm{CO}}_2$ primary acceptor from atmosphere
E) Anatomy of the leaf

Assertion (A): Relative concentration of O₂ and CO₂ determines which of the two will bind to $\mathrm{RuBisCO}.$
Reason (R): $\mathrm{RuBisCO}$ has a much greater affinity for CO₂ than for O₂.
The correct option among the following is: