Explain the variegated leaf experiment

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Oxygen is not produced during photosynthesis by

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Emerson's enhancement effect and red drop have been instrumental in the discovery of:

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

The process which makes a major difference between

C_{3}

and

C_{4}

plants is:

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Match the following lists.

	List-I		List-II
A	Sunlight is essential to the plant process that purifies air fouled by breathing animals	I	Melvin Calvin
B	Bacteria were used to detect the sites of $O_{2}$ evolution	II	Sachs
C	Evidence for the production of glucose	III	Priestley
D	Role of air in the growth of green plants	IV	Ingenhousz
		V	Engelman
		VI	Neil

The correct match is:

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Which of the following biomolecules is common to respiration mediated breakdown of fats, carbohydrates, and proteins?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Which of the following is not a product of a light reaction of photosynthesis?

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

What precautions do you take while conducting an experiment on root pressure?

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Why do we use KOH in Moll’s half leaf experiment?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

If

^{14} C O_{2}

is added to a suspension of photosynthesizing chloroplasts, which of the following will be the first compound to be radioactive?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Study the following lists and match the discoveries and/or inventions made by the scientists during $20^{th}$ century

	List - I		List - II
(a)	Oxygen evolution from $H_{2} O$ in photosynthesis	(i)	Benson
(b)	$C_{3}$ path way of Carbon assimilation	(ii)	V.S. Rama Das
(c)	Contribution to $C_{4}$ -photosynthesis	(iii)	Robert Hill
(d)	Artificial synthesis of genes	(iv)	Hara Govind Khorana
		(v)	Frankel Conrat

The correct answer is

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Which one of the following options is true in photosynthesis?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Cytochromes are found in:

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

The two enzymatic activities associated with RuBisCO are:

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of

(A)

benzanilide

(B)

aniline and

(C)

acetophenone. When the column is eluted with a mixture of solvents, hexane:ethyl acetate

(20 : 80)

, the sequence of obtained compounds is:

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Which statement is wrong for Krebs' cycle?

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

_____ is chief component of chlorophyll. (Write the complete name)

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

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:

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.>Organization for Matter and Energy Flow in Organisms - The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

The percentage of sunlight captured by plants is

Explain the variegated leaf experiment.

Important Questions on Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.

Learn and Prepare for any exam you want !