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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 751. |
Which of the following structures controls the transport of the material into and out of living cells or controls permeability " " Or Which one of the following does not differ in E. coli and ChlamydomonasA. RibosomeB. Cell wallC. Cell membraneD. Chromosomal organisation |
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Answer» Correct Answer - C Cell membrane is same in E.coli (prokaryotes) and Chlamydomonas (eukaryotes). |
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| 752. |
Assertion : The number of mitochondria in a cell do not correspond to the function of the cell. Reason : Mitochondria are common to both plant and animal cells.A. Statement A is correct, B is wrongB. Statement B is correct, A is wrongC. Both the statements A and B are correctD. Both the statements A and B are wrong. |
| Answer» Correct Answer - B | |
| 753. |
The stain used to visualise mitochondria isA. Fast greenB. SafraninC. Aceto carmineD. Janus green |
| Answer» Correct Answer - d | |
| 754. |
In terms of shape and size of mitochondria , considerable degree of variability is observed. The number of mitochondria per cell is variable depending on theA. Morphology of the cellsB. Biochemical activity of the cellsC. Physiological and activity of the cellsD. All of the above. |
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Answer» Correct Answer - C In terms of shape and size of mitochondria considerable degree of variability is observed. The number of mitochondrial per cell is variable depending on the physiological activity of the cells. |
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| 755. |
Which is correct?A. Oil storage`-`RhodoplastB. Protein storage`-`AmyloplastC. Starch storage`-`AleuroplastD. Fat storage`-`Elaioplast |
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Answer» Correct Answer - D * Oil storage`-`Elaioplast. * Protein stoage`-`Aleuroplasts * Starch storage`-`Amyloplast Fat storage`-`Elaioplast |
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| 756. |
The size of mitochondria in plant cell isA. 3.0`-`4.0 `mu`m longB. 2`-`4 `mu`m longC. 1`-`4 `mu`m longD. 0.01`-`1.0 `mu`m long |
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Answer» Correct Answer - C The size of mitochondria in plant cell is 1`-`4 `mu`m long. |
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| 757. |
Recognise the figure and find out the correct statement(s). A. Given figure shows a chromosome with two centrome on surface of it.B. Given figure shows a chromosome with two kinetochores on surface of it.C. Given figure shows a chromosome with two chromatids attached at primary constrictionD. Both B and C |
| Answer» Correct Answer - D | |
| 758. |
Microtubules are made of …………… . (a) Dyenin (b) Tubin (c) Tubulin (d) Nexin |
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Answer» Correct Answer is : (c) Tubulin |
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| 759. |
Key difference between plant cell & animal cell is …………… . (a) Ribosomes(b) Vacuoles (c) Cell wall (d) Centrioles |
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Answer» (c) Cell wall |
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| 760. |
Cytoplasm is stained …………… by eosin. (a) Pink (b) Blue (c) Greenish blue (d) Green |
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Answer» Cytoplasm is stained Pink by eosin. |
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| 761. |
Nucleus was discovered byA) Robert Hooke B) Robert Brown C) Rudolf Virchow D) Schwann |
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Answer» B) Robert Brown |
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| 762. |
Sedimentation coeffecient(s) indirectly is a measure ofA. DensityB. SizeC. VolumeD. Both A and B |
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Answer» Correct Answer - D Sedimentation coefficient(s) is indirectly is a measure of size and density. |
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| 763. |
Among the nitrogenous bases involved in DNA and RNA formation, the double ring base is `:`A. GuanineB. ThymineC. UracilD. Cytosine |
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Answer» Correct Answer - A Guanine and adenine nitrogenous base is double ringed. |
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| 764. |
What is a protoplast ? |
| Answer» Entire protoplasm (cell membrane, cytoplasm with all organelles, and nucleus) of a cell. | |
| 765. |
Which of the following statements was not explained in the cell theory given jointly by schleiden and schwann?A. All living organisms are composed of cells and their productsB. Formation of new cellsC. Cell is the structural and functional unit of living organismsD. None of these |
| Answer» Correct Answer - B | |
| 766. |
What is the site of cellular respiration? |
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Answer» Mitochondria is the site of cellular respiration. |
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| 767. |
How do you observe under microscope the vacuoles of succulent plant like cactus? Write small note on them. |
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Answer» Observing vacuoles : 1. Take the leaf or stem of any succulent plant like cactus. 2. Take thin cross section of stem of cactus in a watch glass containing water. 3. Stain it with dilute safranine solution. 4. Observe it under low and high power microscope. Observations : 1. The large empty spaces visible in the cell are vacuoles. 2. These are fluid filled sac like structures. |
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| 768. |
What are vacuoles and write their function. |
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Answer» Vacuoles are the fluid filled sac like structures present in the cytoplasm. They store solid or liquid contents. |
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| 769. |
Relatively large vacuoles are present inA. all prokaryotesB. all eukaryotesC. plant cellsD. animal cells |
| Answer» Correct Answer - C | |
| 770. |
Organisms lacking a nucleaus and membrance -bound organelles are calledA. diploidB. haploidC. prokaryotesD. eukaryotes |
| Answer» Correct Answer - C | |
| 771. |
The outer memberane found in an animal cell isA. cell wallB. cell memberaneC. nuclear membraneD. cytoplasm |
| Answer» Correct Answer - B | |
| 772. |
Which of the following,organelles takes part in photores-piration?A. GlyoxysomeB. PeroxisomeC. DictyosomeD. ER |
| Answer» Correct Answer - B | |
| 773. |
Lipid molecule in plasma membrane are arranged inA. ScatteredB. SeriesC. AlternateD. Head parallel |
| Answer» Correct Answer - D | |
| 774. |
The average thickness of plasma membrane isA. `70Å`B. `75-100Å`C. `100-150Å`D. `200Å` |
| Answer» Correct Answer - B | |
| 775. |
Who am I ?(i) I am ATP producing factory.(ii) I am single-layered but maintain cellular osmotic pressure.(iii) I support the cell, but I am not cell wall. I have a body resembling net.(iv) I am chemical factory of the cell.(v) Leaves are green because of me. |
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Answer» (i) Mitochondria (ii) Vacuole (iii) Endoplasmic reticulum (iv) Chloroplasts in case of plant cells can be called chemical factory as they synthesise carbohydrates. Ribosomes also synthesise proteins, so those can also be called chemical factory. Golgi complex is secretory in function, hence it can be also called factory. Mitochondria though mainly referred to as powerhouse of the cell, it is also mentioned as chemical factory by some authors. (v) Chloroplast. |
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| 776. |
Histone proteins are rich in amino acidsA. lysineB. arginineC. Both (a) and (b)D. proline |
| Answer» Correct Answer - C | |
| 777. |
Cellular totipotency is demonstrated byA. Only gymnospermsB. All plant cellsC. All eukaryotic cellsD. only bacterial cells |
| Answer» Correct Answer - B | |
| 778. |
What is common between chloroplasts, chromoplasts and leucoplastsA. The presence of pigmentsB. the possession of thylakoids and granaC. Storage of starch, proteins and lipidsD. Ability to multiply by a fission-like process |
| Answer» Correct Answer - D | |
| 779. |
What is common between chloroplasts, chromoplasts and leucoplasts?A. Presence of pigmentsB. Presence of thylakoids and granaC. Storage of starch, proteins and lipidsD. Ability of multiply by a fission-like process |
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Answer» Correct Answer - D Common between chloroplasts, chromoplasts and leucoplasts is the ability to multiply by a fission-like process. |
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| 780. |
What is common between chloroplasts, chromoplasts and leucoplastsA. Presence of pigmentsB. Possession of thylakoids and granaC. Storage of starch, proteins and lipidsD. Ability to multiply by a fission-like process |
| Answer» Correct Answer - C | |
| 781. |
Chromosome having terminal centromere capped by centromere isA. metacentricB. submetacentricC. acrocentricD. telocentric |
| Answer» Correct Answer - D | |
| 782. |
A chromosome with centromere at one end is calledA. telocenticB. metacentricC. excentricD. apocentric |
| Answer» Correct Answer - A | |
| 783. |
A chromosome with centromere in the middle isA. metacentricB. telocentricC. acrocentricD. dicentric |
| Answer» Correct Answer - A | |
| 784. |
In human, secondary constrictions II is found on chromosomeA. 1,2,7 and XB. 1,10,13,16 and ^C. 12, 14, 17, 20 and XD. 5,6,8 and Y |
| Answer» Correct Answer - B | |
| 785. |
Telomere prevents the attachment of one chromosome toA. other chromosomeB. nuclear envelopeC. nucleolusD. all of these |
| Answer» Correct Answer - A | |
| 786. |
Carbohydrates, the most abundant biomolecules on earth, are produced byA. Some bacteria, algae and green plant cellsB. Fungi, algae and green plant cellsC. All bacteria, fungi and algaeD. Viruses, fungi and bacteria |
| Answer» Correct Answer - D | |
| 787. |
The factors, which influence membrane fluidity are I. cholesterol II. Carbohydrates. ltBrgt III. Percentage of unsaturated fatty acids. IV. Receptors.A. II and IVB. III and IVC. Only ID. I and III |
| Answer» Correct Answer - D | |
| 788. |
The main carbohydrates found in cell membrane areA. mucopolysaccharideB. focoseC. oligosaccharides (sialic acid)D. Both (b) and (c) |
| Answer» Correct Answer - C | |
| 789. |
In prokaryotes, the function of cholesterol in plasma membrane is taken over byA. glycoproteinsB. hopanoidesC. fatty acidsD. glycerol |
| Answer» Correct Answer - B | |
| 790. |
In iodiogram, chromosomes of an organism are arranged according to theirA. increasing sizeB. decreasing sizeC. position of centromereD. number of chromosomes |
| Answer» Correct Answer - B | |
| 791. |
Organisms with large number of chromosomes areA. polyploidB. haploidC. diploidD. tetraploid |
| Answer» Correct Answer - A | |
| 792. |
Select of correct statement from the following regarding cell membrane " " Or Who proposed "fluid mosaic model" for plasma membraneA. Proteins make up 60to 70% of the cell membraneB. Liqids are arranged in a bilayer with polar heads toward the inner part.C. Fluid mosaic model of cell membrane was proposed by Singer and Nicolsom.D. `Na^(+)` and K ions move across cell |
| Answer» Correct Answer - C | |
| 793. |
The metacentric chromosomes are …………… shaped. (a) L (b) V (c) J (d) I |
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Answer» The metacentric chromosomes are V shaped. |
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| 794. |
Define proton motive force. |
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Answer» The proton motive force is the force derived from the electrical potential and the hydrogen ion gradient across the cytoplasmic membrane. |
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| 795. |
How polyteny condition is achieved? |
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Answer» Polyteny is achieved by repeated replication of chromosomal DNA several times without nuclear division and the daughter chromatids aligned side by side and do not separate (endomitosis). |
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| 796. |
Name any two giant chromosomes. |
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Answer» Polytene chromosomes and lamp brush chromosomes. |
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| 797. |
What are giant chromosomes? |
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Answer» These chromosomes are larger in size and are called giant chromosomes. In certain plants they are found in the suspensors of the embryo. The polytene chromosome and lamp brush chromosome occur in animals and are also called as giant chromosomes. |
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| 798. |
Polytene chromosomes are observed in …………… of Drosophila. (a) Endocrine gland (b) Gall bladder (c) Salivary gland (d) Exocrine gland |
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Answer» (c) Salivary gland |
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| 799. |
Which of the following events does not occur in rough endoplasmic reticulum,A. Protein foldingB. Protein glycosylationC. Cleavage of signal peptideD. Phospholipid synthesis |
| Answer» Correct Answer - D | |
| 800. |
Rough endoplasmic reticulum is associated withA. fat synthesisB. lipid synthesisC. protein synthesisD. steroid synthesis |
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Answer» Correct Answer - C Rough Endoplasmic Reticulum ( RER) provides surface for ribosomes for synthesis of secretory (serum proteins) , lysosomal and membrane proteins , glycoproteins and helps in packaging of polypeptide chains into enzymes / proteins . It also provides membrane to Golgi bodies for forming vesicles and lysosomes. |
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