Explore topic-wise MCQs in Cell Biology.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

‘Stroma targeting domain’ is located in the ________________

A. chloroplast
B. mitochondria
C. peptide
D. transit peptide
Answer» E.
Discussion
2.

Most proteins destined for uptake by the chloroplasts are synthesized with a ________________

A. removable C-terminal sequence
B. removable N-terminal sequence
C. removable hydrophobic tail
D. removable hydrophilic tail
Answer» C. removable hydrophobic tail
Discussion
3.

In how many subcompartments of the chloroplasts, can the proteins be delivered?

A. 2
B. 4
C. 6
D. 8
Answer» D. 8
Discussion
4.

Following its entry into the mitochondrial matrix, the peptide is _______________

A. degraded
B. converted to phagosome
C. folded to its native conformation
D. hydrolyzed
Answer» D. hydrolyzed
Discussion
5.

Hsp 70 and Hsp 90 are ____________ involved in the mitochondrial uptake of proteins.

A. chaperones
B. receptors
C. ligands
D. glycolipids
Answer» B. receptors
Discussion
6.

Mitochondrial matrix proteins have a target sequence, called presequence located at __________

A. N-terminus
B. C-terminus
C. interstitial site
D. center of the sequence
Answer» B. C-terminus
Discussion
7.

Most of the proteins of mitochondria are synthesized in the ______________

A. mitochondrial matrix
B. mitochondrial membrane
C. cytosol
D. medial cisternae
Answer» D. medial cisternae
Discussion
8.

For which of the following organelles, the proteins to be imported remain in their native folded state?

A. Peroxisomes
B. Mitochondrion
C. Chloroplast
D. Endoplasmic reticulum
Answer» B. Mitochondrion
Discussion
9.

Eough endoplasmic reticulum imports its proteins posttranslationally.

A. True
B. False
Answer» C.
Discussion