Cell Biology In Biotechnology — Part 1 MCQs with Explanations

The nucleus moves towards the back and behind the Golgi is the correct answer to “Which one of the following changes occurs in a directionally migrating eukaryotic cell”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

P, R and S only is the correct answer to “Structured William's model P. Can describe the changes in intracellular components of the cell during growth. Q. Cannot describe the death phase of the cells. R. Can describe the variation of size of cells in the different phases of growth. S. Cannot describe the lag period of growth. Which one of the following is correct”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Transformation of one differentiated cell type to another is the correct answer to “Metaplasia represents”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Golgi is the correct answer to “Which one of the following organelles disappears during cell division and is regenerated in the daughter cells”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Autophagy is the correct answer to “The process by which intracellular macromolecules are supplied for lysosomal degradation during nutrient starvation is”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Simple diffusion across lipid bilayer is the correct answer to “The type of transport that does not reach V max , is”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Acetylcholine is the correct answer to “Neurotransmitter at the neuromuscular junction is”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

It indirectly regulates the volume of the cell is the correct answer to “Which of the following statements about Na+ - K+ ATPase is correct”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Monomeric GTPase involved in relaying signal from cell surface to nucleus is the correct answer to “Ras protein is a”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

5 is the correct answer to “How many mitotic divisions shall occur to produce 64 cells from 2 cells”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Lamin is the correct answer to “Which one of the following intermediate filament proteins is present in the nucleus”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

The Golgi apparatus is the correct answer to “Secretory proteins synthesized by ER-associated ribosomes traverse through”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

G2 phase nucleus will wait for S-phase nucleus to complete the replication and both the nuclei simultaneously enter into M-phase is the correct answer to “Which one of the following result is expected when a mammalian cell in S-phase is fused with another in G2”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

ER, Golgi and nuclear envelope is the correct answer to “If a fluorescent dye is injected into the lumen of the endoplasmic reticulum (ER), in which of the following compartments can fluorescence signal can be observed”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

G2 phase is the correct answer to “In a typical mitotic cell division cycle in eukaryotes, M phase occurs immediately after the”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

M phase is the correct answer to “In the course of cell cycle, the level of the protein cyclin abruptly falls during”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Cells in primary cell culture undergo senescence after 50-60 passages is the correct answer to “Hayflick limit of mammalian cells refers to which one of the following”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Kinesin is the correct answer to “A cargo has to be delivered from the centre of the cell to the cell periphery using the microtubule network. To which proteins does it need to be associated with”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

P-2, Q-4, R-1, S-3 is the correct answer to “Match the items in Group I with Group II . Group I Group II P. Receptor tyrosine kinase 1. Inactivation of G-proteins b. Q. Cyclic GMP (cGMP) 2. Reception of insulin signal R. GTPase activating protein (GAP) 3. Thyroid hormone S. Nuclear receptor 4. Receptor guanylyl cyclase”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Nucleus, Golgi is the correct answer to “In a migrating cell the relative position of the . . . . . . . . and the . . . . . . . . determines the polarity of the cell”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

It works against the concentration gradient is the correct answer to “Which one of the following statement is incorrect about facilitated diffusion”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Both (A) and (R) are true and (R) is the correct reason for (A) is the correct answer to “Determine the correctness or otherwise of the following Assertion (A) and the Reason (R) . Assertion: The elucidation of ribosome structure helps in the development of new generation drugs. Reason: The high resolution of macromolecular structure has enabled in structure-based drug design.”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Chloride is the correct answer to “The transport that will be the most affected following mutation III cystic fibrosis transmembrane conductance regulator (CFTR) gene is”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Modifying Gs protein is the correct answer to “Cholera toxin increases cAMP levels by”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

G1 and M is the correct answer to “The genome is diploid at the end of which phases of a human mitotic cell cycle”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

P-4, Q-1, R-2, S-3 is the correct answer to “Match Group I with Group II . Group I Group II P. Fibronectin 1. Uptake of amino acids and glucose Q. Insulin 2. Trypsin inhibitor R. α-Macroglobulin 3. Binds iron S. Transferrin 4. Cell attachment to substratum”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Anabaena flos-aquae is the correct answer to “Gas vacuoles are present in”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

None of the above is the correct answer to “At what stage mitosis occurs in bacteria”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

S phase → G2 phase → M phase → G1 phase is the correct answer to “In the cell cycle of a typical eukaryote, the sequence of events operating at the time of cell division is”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

P-2, Q-3, R-4, S-1 is the correct answer to “Match the proteins in Group I with cellular processes in Group II . List-I List-II P. p53 1. DNA packaging Q. Lysozyme 2. Apoptosis R. Tubulins 3. Hydrolysis of polysaccharides S. Histones 4. Chromosome segregation”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Y-shaped is the correct answer to “A metacentric chromosomes will appear at anaphase as”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

S-phase is the correct answer to “Histone proteins are synthesized in”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

[A] is true but [R] is false is the correct answer to “Determine the correctness or otherwise of the following Assertion [A] and the Reason [R] regarding mammalian cells. Assertion [A]: Cells use Ca 2+ and not Na + , for cell to-cell signaling. Reason [R]: In the cytosol, concentration of Na + is lower than that of Ca 2+”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Steroids and lipids is the correct answer to “Smooth endoplasmic reticulum synthesizes”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

S is the correct answer to “DNA synthesis in eukaryotes occurs during which phase of the mitotic cell cycle”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

All G proteins are trimeric is the correct answer to “Which one of the following statements regarding G proteins is incorrect”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Undergo cell cycle arrest is the correct answer to “If serum is removed from the growth medium of human embryonic kidney cell line (HEK), then the cells will”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Cell wall acidification is the correct answer to “Fusicoccin promotes cotyledon growth by promoting”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

S-phase is the correct answer to “In eukaryotic cell, DNA replication takes place during”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.

Serotonin is the correct answer to “Primary neutransmitter that playa role in sleep, appetite, arousal and mood is”. This question is standard in competitive examination syllabi for Cell Biology In Biotechnology.