3. Fill in the blanks with the appropriate answer from the choices given in the brackets.
3. Fill in the blanks with the appropriate answer from the choices given in the brackets.

(a) The site of light reaction in the cells of a leaf is……………… (cytoplasm, stroma, grana).
(b) The chemical substance used to test the presence of starch in the cell of a leaf is…………… (CaCl
2, iodine solution, Benedict solution).
(c) Stroma is the ground substance in …………… (cytoplasm, chloroplast, ribosomes).

(d) The dark reaction of photosynthesis is known as…………… (Hill reaction, cyclic phosphorylation, Calvin cycle).
(e) In the flowering plants, food is transported in the form of……………………… (sucrose, glucose, starch).

Solution :

  • The site of light reaction in the cells of a leaf is……………… (cytoplasm, stroma, grana).

  Answer :    The site of light reaction in the cells of a leaf is grana .

  • The chemical substance used to test the presence of starch in the cell of a leaf is…………… (CaCl2, iodine solution, Benedict solution).

Answer : The chemical substance used to test the presence of starch in the cell of a leaf is        iodine solution     

(c) Stroma is the ground substance in …………… (cytoplasm, chloroplast, ribosomes ).

Answer : Stroma is the ground substance in chloroplast .

(d ) The dark reaction of photosynthesis is known as…………… (Hill reaction, cyclic phosphorylation, Calvin cycle.

Answer : The dark reaction of photosynthesis is known as calvin cycle .


(e) In the flowering plants, food is transported in the form of……………………… (sucrose, glucose, starch).

Answer : In the flowering plants, food is transported in the form of sucrose .