Cell Biology - Study Mode

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[#171] The entire content of a living cell is known as . . . . . . . . which includes the cytoplasm and the nucleus.

(A) protoplasm

(B) cell membrane

(C) lysosomes

(D) mitochondria

Correct Answer

(A) protoplasm

[#172] The lecithin molecule of the lipid layer consists of two lipid chains of glycerol and a polar head containing

(A) Cholesterol and cephalin

(B) Cholesterol and phosphate

(C) Phosphate and choline

(D) None of the above

Correct Answer

(C) Phosphate and choline

[#173] Vacuoles are sap filled vesicles in the cytoplasm, covered by a membrane called

(A) Protoplast

(B) Leucoplast

(C) Tonoplast

(D) Chromoplast

Correct Answer

(C) Tonoplast

[#174] Many folds of the inner membrane of mitochondria project into the matrix as incomplete partitions which are called

(A) Cristae

(B) Grana

(C) Inner membrane particles

(D) Plastids

Correct Answer

(A) Cristae

[#175] A protein is synthesised in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membrane layers it has to pass to reach its destination?

(A) 2

(B) 3

(C) 4

(D) 5

Correct Answer

(C) 4