Structure Of The Cell - Questions & Answers | Exam2Win

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46. The first wall layer of cell is

A. Tertiary wall, if present

B. Secondary wall

C. Primary wall

D. Middle lamella, if present

Explanation:

47. Outer mitochondrial membrane resembles bacterial membrane and outer chloroplast membrane in having

A. Selective permeability

B. Single ion channels

C. Porins

D. All the above

Explanation:

48. Which one is lysosomal activity

A. Reabsorption of tadpole tail

B. Mobilisation of stored substances

C. Removal of obstructions

D. All the above

Explanation:

49. Chromoplasts are formed from leucoplasts in

A. Rose petals

B. Carrot

C. Dahlia florets

D. All the above

Explanation:

50. Mitochondria were discovered by

A. Michaelis

B. Benda

C. Kolliker

D. Krebs

Explanation: