A: Light harvesting complexes (LHC) on thylak | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The Light Harvesting Complexes $(LHC)$ consist of hundreds of pigment molecules bound to proteins. Each complex contains all pigments except one m

Vedclass · Accepted Answer

Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

Vedclass · Answer

(A) The Light Harvesting Complexes $(LHC)$ consist of hundreds of pigment molecules bound to proteins. Each complex contains all pigments except one molecule of chlorophyll $a$,forming a light-harvesting system (also called antenna molecules). These pigments absorb light at different wavelengths,thereby broadening the range of light absorption for photosynthesis. The energy absorbed by these antenna molecules is transferred to the reaction centre (chlorophyll $a$) via resonance. Therefore,both the Assertion and the Reason are correct,and the Reason explains why the $LHC$ is effective in light absorption.

Column-$I$	Column-$II$
$(A)$ $P_{680}$	$(I)$ Reaction centre of $PS-I$
$(B)$ $P_{700}$	$(II)$ Reaction centre of $PS-II$
$(C)$ $\text{LHC}$	$(III)$ Antennae
$(D)$ Plastoquinone	$(IV)$ Mobile carrier

$A$: Light harvesting complexes $(LHC)$ on thylakoid membrane broaden the range of light absorption.
$R$: They transfer electrons to the reaction centre.

Similar Questions

$RuBP$ carboxylase,$PEPcase$,pyruvate dehydrogenase,$ATPase$,cytochrome oxidase,hexokinase,lactate dehydrogenase. Select/choose enzymes from the list above which are involved in $(a)$ Photosynthesis $(b)$ Respiration $(c)$ Both in photosynthesis and respiration.

In which of the following,oxygen does not evolve during photosynthesis?

Select the correct option:
$(1)$ $C_4$ plants have double the efficiency of carbon fixation compared to $C_3$ plants.
$(2)$ Sugar is transported from source to sink through the $\text{phloem}$ / $\text{xylem}$ tissue.

Why do fishes in an aquarium thrive better if green plants are growing there?

Match the following columns:
Column-$I$ Column-$II$
$(A)$ $P_{680}$ $(I)$ Reaction centre of $PS-I$
$(B)$ $P_{700}$ $(II)$ Reaction centre of $PS-II$
$(C)$ $\text{LHC}$ $(III)$ Antennae
$(D)$ Plastoquinone $(IV)$ Mobile carrier

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$A$: Light harvesting complexes $(LHC)$ on thylakoid membrane broaden the range of light absorption. $R$: They transfer electrons to the reaction centre.