A. What is the value of RQ in germinating wheat grains ?
B. What is zymase ?
C. Name the kind of respiration which uses proteins as respiratory substrate.
D. Name the chief polysaccharide reserve food in plant cells.
E. Name the end products of anaerobic breakdown of pyruvic acid in muscle cells of animals.

A. Name the ways through which breeders create desired genetic variations in plants. B. List the chief objectives of animal breeding. C. What are the three main approaches of animal breeding D. What is quarantine ? E. What is emasculation ?

(a) What is a solar cell ? Draw the labelled diagram of a solar cell. (b) Name the semi-conductor material which is usually used for making solar cells. (c ) Write the uses of solar cells.

(a) What is a solar cell ? Draw the labelled diagram of a solar cell. (b) Name the semi-conductor material which is usually used for making solar cells. (c ) Write the uses of solar cells.

Answer the following on the basis of lac operon-a. Name the 3 structural genes. b. Name the inducer. c Name the gene which codes for enzyme B-galactocydase. d Name the gene which codes for repressor protein e.What is the role of gene "Y"

Read the following statements (a-e) and choose the suitable option w.r.t. respiration a. A series of slow step-wise reactions controlled by enzymes. b. Breaking of the C-C bonds of respiratory substrates through oxidation within the cells. c. Liberation of energy. d. Breakdown of complex molecules to yield energy which takes place in mitochondria only. e. Carbon skeleton produced during respiration is not used as precursor for cellular biosynthesis of other molecules.

Read the following statements (a-e) and choose the suitable option w.r.t. respiration a. A series of slow step-wise reactions controlled by enzymes. b. Breaking of the C-C bonds of respiratory substrates through oxidation within the cells. c. Liberation of energy. d. Breakdown of complex molecules to yield energy which takes place in mitochondria only. e. Carbon skeleton produced during respiration is not used as precursor for cellular biosynthesis of other molecules.

(a) Name the chief proteins in milk. (b) How does milk coagulate? (c) What is the product of milkcoagulation? (d) Why milk is not considered as balanced food of adults?

A. Name the breakdown product of glucose which enters into the mitochondria during aerobic respiration. B. What is the meaning of glycolysis ? C. Name the enzyme responsible for phosphorylation of glucose and fructose into glucose-6-phosphate and fructose-6-phosphate. D. Write hte chemical reaction of citric acid cycle in which the FAD is reduced to FADH_(2) . E. How many ATP molecules are generated during the complete breakdown of pyruvic acid molecule in aerobic respiration ?