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.
| 551. |
Do bigger organisms have larger cells? |
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Answer» It is not necessary that the size of cells in large organisms will be large and the cells in small organisms will be smaller. |
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| 552. |
Choose the incorrect matchA. Nucleus-RNAB. Lysosome- Protein synthesisC. Mitochondria- RespirationD. Cytoskeleton- Microtubules |
| Answer» Correct Answer - B | |
| 553. |
Name the cell organell that is known as “suicidal bags of the cell”. |
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Answer» Lysosomes is the cell organell that is known as “suicidal bags of the cell”. |
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| 554. |
Write the main function of Smooth Endoplasmic Reticulum. |
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Answer» The SER helps in the manufacture of fat molecules or lipids important for cell function. |
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| 555. |
What happens if Endoplasmic reticulum is destroyed in the cell? |
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Answer» The transportation of substances from one part to another part of the cell will not occur. |
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| 556. |
Cell organelle can be separated byA. X-ray diffractionB. autoradiographyC. thin-section microtomyD. differential centrifugation |
| Answer» Correct Answer - D | |
| 557. |
During ultracentrifugation of cell homogenate, which fraction would be separated at `10000gxx20` minutes?A. Mitochondria and lysosomesB. ribosomes and microsomeC. nucleus and mitochondriaD. endoplasmic reticulum |
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Answer» Correct Answer - A At 400-500`xxg` speed it yields a pellet consisting of unbroken tissue, whole cells, cell nuclei and large debris. 10000-20000`xxg` brings mitochondria, lyososomes and peroxisomes. 80000`xxg` yields microsomal pellet, while at 150000-300000`xxg` ribosomes and macromolecules sediment. |
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| 558. |
The use of oil immersion canA. increase the value of refractive indexB. decrease the value of refractive indexC. increase the value of numerical apertureD. decrease the value of numerical aperture |
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Answer» Correct Answer - C Oil immersion is a technique used to increase the resolution of a microscope by immersing objective lens and the speciemen in a transparent oil of high refractive index, thus increasing numerical aperture, e.g. cedar wood oil. |
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| 559. |
Which of the following organelles possess oxidases and are associated with oxidation reaction other than those oF respiration?A. SpherosomesB. PeroxisomesC. LysosomesD. Golgi |
| Answer» Correct Answer - B | |
| 560. |
The correct sequence of cell organelles during photores piration isA. Chloroplast-Rough endoplasmic reticulum-Dic- tyosomesB. Chloroplast-Mitochondria-PeroxisomeC. Chloroplast-Vacuole-PeroxisomeD. Chloroplast-Golgi bodies-Mitochondria |
| Answer» Correct Answer - B | |
| 561. |
Who coined the term ’Cytoblast’ and why? |
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Answer» Schleiden called the nucleus as cytoblast, because he thought that new cells were created from the nucleus. |
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| 562. |
The cell organelle involved in cellular respiration is _____A. mitochondriaB. nucleusC. chloroplastD. ribosome |
| Answer» Correct Answer - A | |
| 563. |
The term plasmalemma was coined byA. NegaliB. C cramerC. PlowerD. Clowes |
| Answer» Correct Answer - C | |
| 564. |
What is the function of a nucleus in a cell? |
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Answer» The nucleus plays a vital role in the cell. It controls all functions of the cell. It controls cell division. Nucleus contains chromosomes. These chromosomes contain DNA and proteins. |
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| 565. |
What is the role of the cell wall in plant cells? |
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Answer» It exerts an inward wall pressure to resist the outward pressure exerted by the cell sap. |
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| 566. |
Choose the correct statement.A. Peripheral fibril of centriole is doubletB. Axoneme is not covered by plasma membraneC. Kinetochores are found on secondary constriction alsoD. fungi possess unicisternal golgi |
| Answer» Correct Answer - D | |
| 567. |
Schleiden and Schwann proposed cell theory inA. 1836`-`37B. 1838`-`39C. 1901`-`02D. 1938`-`39 |
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Answer» Correct Answer - B Schleiden and Schwann proposed cell theory 1838-39. |
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| 568. |
What is main iste of rRNA syntheiss ? |
| Answer» Correct Answer - Nucleolus. | |
| 569. |
rRNA is synthesised inA. E.RB. NucleusC. NucleolusD. Cytoplasm |
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Answer» Correct Answer - C rRNA is synthesised in nucleolus. |
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| 570. |
Spherosomes haveA. Cellulose reserveB. Protein reserveC. Lipid reserveD. Both protein and lipid reserve |
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Answer» Correct Answer - C Sphaherosomes have lipid reserve. |
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| 571. |
These are the traps of solar energy. A) Lysosomes B) Ribosomes C) Chloropiasts D) Nucleus |
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Answer» Correct option is C) Chloropiasts |
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| 572. |
Storage sacs of the cell A) Lysosomes B) Ribosomes C) Vacuole D) Nucleolus |
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Answer» Correct option is C) Vacuole |
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| 573. |
Choose the correct matching from the following :List – AList – B1) Suicidal bagsa) Cheek cell2) Mitochondriab) Onion peel cell3) Nucleusc) LysosomesA) 1 – b, 2 – c, 3 – a B) 1 – c, 2 – a, 3 – b C) 1 – a, 2 – b, 3 – c D) 1 – c, 2 – b, 3 – a |
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Answer» D) 1 – c, 2 – b, 3 – a |
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| 574. |
Match the following :Group – AGroup – B1) NucleusA) Cell’s power house2) ProkaryotesB) Suicide bags3) LysosomesC) Protein synthesis4) MitochondriaD) Regulate and controls all the functions of a cell.5) Rough endoplasmic reticulumE) BacteriumF) Lipid synthesis |
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| 575. |
Match the following :Group – AGroup – B1) MitochondriaA) Cyto skeleton2) LysosomesB) Secrection3) NucleusC) Cell’s power house4) ERD) Cell’s control room5) Golgi complexE) Suicidal bags |
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| 576. |
The Red blood cells have less life span because A) presence of haemoglobin B) presence of nucleus C) absence of nucleus D) presence of nucleolus |
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Answer» C) absence of nucleus |
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| 577. |
Match the following :Group – AGroup – B1) Semi permeableA) Chloroplast2) Traps solar energyB) Prokaryote3) CynobacteriaC) Cell wall4) DetoxificationD) Plasma membrane5) Withstand greater changes in surroundingsE) SER |
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| 578. |
Choose the correct answer from the following matching.List – AList – B1) Prokaryotea) Lipid synthesis2) Ribosomesb) Protein factories3) Smooth ERc) BacteriumA) 1 – a, 2 – b, 3 – c B) 1 – b, 2 – c, 3 – a C) 1 – c, 2 – a, 3 – b D) 1 – c, 2 – b, 3 – a |
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Answer» D) 1 – c, 2 – b, 3 – a The correct option is (D) |
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| 579. |
What are Thylakoids ? |
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Answer» Membrane bound flattened sacs of granum are called hylakoids. |
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| 580. |
Expand ATP. |
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Answer» Adenosine Triphosphate. |
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| 581. |
Expand RER. |
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Answer» Rough endoplasmic reticulum. |
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| 582. |
What is the composition of cell wall in plants? |
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Answer» Cell wall is made of cellulose, hemicellulose, pectins and proteins in plants. |
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| 583. |
What does fluid mosaic model state? |
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Answer» According to fluid mosaic model, the quasifluid nature of lipid enables lateral movement of proteins within the overall bilayer. |
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| 584. |
What is passive transport? |
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Answer» Movement of molecules across the plasma membrane without any requirement of energy is called passive transport. |
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| 585. |
What is active transport? |
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Answer» A few ions or molecules are transported across the plasma membrane against their concentration gradient with the utilisation of ATP (energy). This transportation is called as active transport. |
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| 586. |
Ribosomes are so called because of highA. ribose contentB. RNA contentC. both (a) and (b)D. None of these |
| Answer» Correct Answer - B | |
| 587. |
Nucleolus is the site of formation ofA. spindle fibresB. chromosomesC. ribosomesD. peroxisomes |
| Answer» Correct Answer - C | |
| 588. |
Which of the following is true for nucleolus ?A. Larger nucleoli are present in dividing cellsB. It is a membrane-bound structureC. It takes part in spindle formationD. It is a site for active ribosomal RNA synthesis |
| Answer» Correct Answer - D | |
| 589. |
Nucleolus is formed from specific sites on chromosomes known as….A. nucleolar reorganising regionB. nucleus forming regionC. nucleolar organiser regionD. none of these |
| Answer» Correct Answer - C | |
| 590. |
Write the unique feature seen in plant cells. |
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Answer» Presence of cell wall is the unique feature seen in plant cells. |
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| 591. |
Name the selectively permeable membrane that covers the cell. |
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Answer» Plasma membrane is the selectively permeable membrane that covers the cell. |
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| 592. |
Nucleic acid occurs inA. Golgi bodyB. LysosomesC. CytoplasmD. Mitochondria and chloroplasts |
| Answer» Correct Answer - D | |
| 593. |
The colourless plastids are A) Chloropiasts B) Chromoplasts C) Leucoplasts D) None |
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Answer» Correct option is C) Leucoplasts |
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| 594. |
Which of the following organelles involved in secretion ? A) nucleus B) mitochondria C) golgi complex D) plastid |
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Answer» C) golgi complex |
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| 595. |
Cell membrane is made up of mainly A) lipids and fats B) lipids and proteins C) proteins and fats D) lipids, fats and proteins |
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Answer» B) lipids and proteins |
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| 596. |
Nuclear membrane is absent in …………. type of cells. A) Eukaryote B) ProkaryoteC) Protista D) Fungi |
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Answer» Correct option is B) Prokaryote |
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| 597. |
Entry of water into rot hairs is an example ofA. diffusionB. imbibitionC. osmosisD. plasmolysis |
| Answer» Correct Answer - C | |
| 598. |
Non-stainable region of a chromosome is known asA. centromereB. Primary constrictionC. Both (a) and (b)D. secondary constriction |
| Answer» Correct Answer - C | |
| 599. |
Lysosomes are found fromA. Endoplasmic reticulumB. MitochondriaC. Golgi bodiesD. Both a and c |
| Answer» Correct Answer - C | |
| 600. |
A semipermeable membrane allows the diffusion ofA. Solute moleculesB. solvent moleculesC. solute and solvent moleculesD. none of these |
| Answer» Correct Answer - B | |