Question

Q37. Monadelphous stamen is the unique character of:

(a) Fabaceae (b) Brassicaceae

(c) Asteraceae (d) Malvaceae

Q38. Which one among the following will settle down at last during centrifugation?

(a) Chloroplast (b) Mitochondria

(c) Ribosomes (d) Nuclei

Q39. Which of the following constitutes approximately 8%-15% of the cell wall in higher

plants?

(a) Proteins (b) Lipids

(c) Carbohydrates (d) Flavonoids

40. Rice bran oil is extracted from:

(a) Endosperm (b) Embryo

(c) Husk (d) Coleoptile

41. In which of the following diseases insects act as vector during transmission?

(a) Powdery mildew of peas (b) Mosaic disease of papaya

(c) Bacterial blight of rice (d) Bacterial blight of potato​

Answer 1

37. D option

38. C option

39. B option

40. C option

41. A option

Answer 2

• Monadelphous stamen is the important character of family of plant called as Malvaceae.  
• Among the given cell organelles, ribosomes will settle down at last during centrifugation due to its high size and density.
• Carbohydrates constitute approximately 8%-15% of the cell wall in higher plants as they are the chief component of the plant cell wall.  
• Rice bran oil is extracted from Husk of the rice.
• In Mosaic disease of papaya insects act as vector during transmission and insect belonging to family called Aphidoidea act as vector.