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Cell Biology MCQ - Biotechnology Engineering (BT) MCQ


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21 Questions MCQ Test Mock Test Series of IIT JAM Biotechnology 2025 - Cell Biology MCQ

Cell Biology MCQ for Biotechnology Engineering (BT) 2024 is part of Mock Test Series of IIT JAM Biotechnology 2025 preparation. The Cell Biology MCQ questions and answers have been prepared according to the Biotechnology Engineering (BT) exam syllabus.The Cell Biology MCQ MCQs are made for Biotechnology Engineering (BT) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Cell Biology MCQ below.
Solutions of Cell Biology MCQ questions in English are available as part of our Mock Test Series of IIT JAM Biotechnology 2025 for Biotechnology Engineering (BT) & Cell Biology MCQ solutions in Hindi for Mock Test Series of IIT JAM Biotechnology 2025 course. Download more important topics, notes, lectures and mock test series for Biotechnology Engineering (BT) Exam by signing up for free. Attempt Cell Biology MCQ | 21 questions in 50 minutes | Mock test for Biotechnology Engineering (BT) preparation | Free important questions MCQ to study Mock Test Series of IIT JAM Biotechnology 2025 for Biotechnology Engineering (BT) Exam | Download free PDF with solutions
Cell Biology MCQ - Question 1

Which of the following statements regarding Meiosis is true

Detailed Solution for Cell Biology MCQ - Question 1

Meiosis I is reduction in which separation of homologous chromosomes occur, while Meiosis II is equational division, just like mitosis in which separation of sister chromatids occur.
Eg.

Cell Biology MCQ - Question 2

When secreting cell acting on nearby targeting cell by discharging a ligand and receptor of this ligand present of targeting cell, then this type of signaling is called-

Detailed Solution for Cell Biology MCQ - Question 2


In paracrine signaling, signaling cell and target cell both differ.

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Cell Biology MCQ - Question 3

Transport of proteins from Golgi to ER

Detailed Solution for Cell Biology MCQ - Question 3

Cell Biology MCQ - Question 4

Measurements of amount of DNA per nucleus were taken from a large no. of cells from a growing fungus. The measured DNA levels ranged from 3 to 6 picogram per nucleus. In which state of the cell cycle did the nucleus contain 6 picogram of DNA, firstly observed.

Detailed Solution for Cell Biology MCQ - Question 4

In the S-phase of the cell cycle, the amount of DNA doubles but the number of chromosomes remain same. So, DNA level here ranges from 3 picogram to 6 picogram, so amount is doubling.

Cell Biology MCQ - Question 5

The gamma tubulin ring complex is-

Detailed Solution for Cell Biology MCQ - Question 5

Tubulin is the basic monomer of the microtubule.
Firstly, tubulin units are polymerised to give a protofilament and then proto filaments are arranged to form a microtubule.
So steps are
Nucleation → Polymerisation → Steady state
So in nucleation step gamma tubulins are required.

Cell Biology MCQ - Question 6

A C-terminal KDEL sequence in the protein will most often ensure-NA

Detailed Solution for Cell Biology MCQ - Question 6

KDEL sequence is retention signal or retrieval sequence for ER-retention of the protein
K = Lysine
D = Aspartic acid
E = Glutamic acid
L = Leucine

Cell Biology MCQ - Question 7

Find out the correct match-
 

Detailed Solution for Cell Biology MCQ - Question 7

Vinblastin is microtubule polymerisation inhibitor
Quabain is inhibitor of Na+ – K+ pump
Tunicamycin  blocks first step of N-linked glycosylation

Cell Biology MCQ - Question 8

A young college student had nausea, vomiting, visual disorders, and muscular paralysis after eating canned tuna fish. The probable diagnosis is botulism, caused by ingestion of the Clostridium botulinum toxin. The physiological effect of this toxin is to

Detailed Solution for Cell Biology MCQ - Question 8

The toxin from Clostridium botulinum inhibits the release of acetylcholine, the neurotransmitter at myoneural junctions. As a result, motor nerve impulses cannot be transmitted across the junction, and muscle cells are not stimulated to contract.

Cell Biology MCQ - Question 9

Which one of the following is true in breast cancer cells that involve the BRCA 1 gene?

Detailed Solution for Cell Biology MCQ - Question 9

Mutations in the BRCA 1 gene, a breast tumor supressor gene, are the major cause of breast cancer. In most breast cancers involving this gene, deoxyribonucleic acid synthesis proceeds, indicating that the G1-S checkpoint is not affected; however, the mutated cells cannot control the transition between G2 and M. Moreover, the mutated cells have abnormal centrosome numbers, and their nuclear division does not proceed normally, leading to aneuploidy and genetic instability of the daughter cells.

Cell Biology MCQ - Question 10

Which of the following is a carbohydrate containing covering associated with the outer leaflet of the plasma membrane?

Detailed Solution for Cell Biology MCQ - Question 10

The glycocalyx (cell coat) is associated with the outer leaflet of the plasma membrane. It is composed primarily of proteoglycans, which possess polysaccharide side chains. 

Cell Biology MCQ - Question 11

Which of the following organelles possesses mixed-function oxidases that detoxify phenobarbital and other drugs?

Detailed Solution for Cell Biology MCQ - Question 11

Smooth endoplasmic reticulum possesses mixed-function oxidases. Drugs detoxification occurs in hepatocytes following proliferation of the SER in response to the drug phenobarbital; the oxidases that metabolize this drug are located in the SER.

Cell Biology MCQ - Question 12

Which of the following has a rigid wall composed of 13 protofilament strands?

Detailed Solution for Cell Biology MCQ - Question 12

A microtubule consists of α - and β-tubulin dimers polymerized into a spiral around a hollow lumen to form a fairly rigid tubule. When cross-sectioned, the microtubule reveals 13 protofilament strands, which represent the tubulin dimers present in one complete turn of the spiral.

*Multiple options can be correct
Cell Biology MCQ - Question 13

Find out the right statement

Detailed Solution for Cell Biology MCQ - Question 13

In the G-protein coupled receptor signaling if effector molecule is Adenylate cyclase then it forms cAMP from ATP. cAMP then activates protein-Kinase A.
If effector molecule will be

*Multiple options can be correct
Cell Biology MCQ - Question 14

Which of the following amino acids of a membrane protein are not most likely to be buried in the interior of protein structure?

Detailed Solution for Cell Biology MCQ - Question 14

Non-polar amino acids are present in α -helix region of the integral proteins.

*Multiple options can be correct
Cell Biology MCQ - Question 15

Find out the correct statement-

Detailed Solution for Cell Biology MCQ - Question 15

In the G0 phase the cell is metabolically active
cdc-25 is a phosphatase and it is involved in the last step of formation of active MPF. For G1 to S transition cyclin -E is required.

*Multiple options can be correct
Cell Biology MCQ - Question 16

Human cells maintained concentration gradients across their plasma membranes, such that there is high sodium concentration outside the cell and a high potassium concentration inside the cell. Suppose that within the cell membrane are sodium leak channels. Which of the following statements are wrong regarding sodium transport. 

Detailed Solution for Cell Biology MCQ - Question 16

Ions move from high concentration to low concentration. Here the sodium concentration gradient is established. So Namovement occurs from outside to inside with transported proteins thats why facilitated diffusion.

*Multiple options can be correct
Cell Biology MCQ - Question 17

There are mentioned some properties. Out of these, find out the properties of cancerous cells

Detailed Solution for Cell Biology MCQ - Question 17

Cancerous cells have the following properties
(i) Loss of contact inhibition
(ii) Growth factor independent
(iii) Autocrine growth stimulation
(iv) Less adhesive than normal cells (loss of E-Cadherin, the principal adhesion molecule of epithelical cells)
(v) Angiogenesis
(vi) Failure to undergo apoptosis
(vii) Expression of high level of telomerase
(viii) Immortal
(ix) Cell cycle check points abnormal 

*Answer can only contain numeric values
Cell Biology MCQ - Question 18

A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 8 picograms of DNA per nucleus. The amount of DNA (in picograms) found at the end of S and G2 phase would be __________


Detailed Solution for Cell Biology MCQ - Question 18

In the S-phase of cell cycle, the amount of DNA doubles. So in S-phase, 8 picogram will double as 16 picogram. And then G2 phase will occur.

*Answer can only contain numeric values
Cell Biology MCQ - Question 19

Consider an epithelial cell which is perfect cube of side 24 with a nucleus in the centre. The surface area to volume ratio of this cell is _________


Detailed Solution for Cell Biology MCQ - Question 19

*Answer can only contain numeric values
Cell Biology MCQ - Question 20

In a proliferating cell system, the number of mitotic divisions required to produce 1024 cells from a single parent cell are _______________


Detailed Solution for Cell Biology MCQ - Question 20

*Answer can only contain numeric values
Cell Biology MCQ - Question 21

If there are total 14 chromosomes in the cell after completion of meiosis-I, then the number of chromosomes present on that cell after completion of meiosis-II would be ___________


Detailed Solution for Cell Biology MCQ - Question 21

Meiosis-I is a reductional division, hence after meiosis-I, chromosome numbers are reduced to half. Here the reduced chromosomes are 14 and meiosis-II is an equational division, so 14 chromosomes will be there after meiosis-II.

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