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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.
| 351. |
What are genes? |
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Answer» Genes are the functional segments on the chromosomes that carry hereditary i information from the parental generation to the offspring. |
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| 352. |
Which part of the cell maintains the homeostasis? |
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Answer» Plasma membrane of the cell maintains the homeostasis. |
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| 353. |
Which one of the following is not a constituent of cell membraneA. GlycolipidsB. PhospholipidsC. CholesterolD. Proline |
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Answer» Correct Answer - D Proline is not a constituent of cell membrane. |
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| 354. |
Organelle associated with aerobic respiration isA. NucleusB. CentrioleC. ChloroplastD. Mitochondrion |
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Answer» Correct Answer - D Organelle associated with aerobic respiration is mitochondrion. |
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| 355. |
Three of the following statements regarding cell organelles are correct while one is wrong. Which one is wrong.A. Lysomes are double-membraned vesicles budded off form Golgi apparatus and contain digestive enzymes.B. Endoplasmic reticulum consists of a network of membranous tubules and helps in transport, synthesis and secretion.C. Leucoplasts are bound by two membranes lack pigment but contain their own DNA and protein synthesizing machinery.D. Sphaerosomes are single membrance bonds and are associated with synthesis and stroage of lipids. |
| Answer» Correct Answer - A | |
| 356. |
In germinating seeds fatty acids are degraded exclusively in theA. PeroxisomesB. MitochondriaC. ProplastidsD. Glyoxysomes |
| Answer» Correct Answer - D | |
| 357. |
Arrangement of atoms in molecules can be determined byA. phase contrast microscopeB. SEMC. X-ray crystalographyD. cell fractionation method |
| Answer» Correct Answer - C | |
| 358. |
Which of the following does not differ in E.coli and Chlamudomonas ?A. Cell wellB. Cell membraneC. RibosomesD. Chromosomal organization |
| Answer» Correct Answer - B | |
| 359. |
A Gram negative bacteria differ from a Gram positive bacteria in havingA. Thick cell wall and is primarily made up of peptido- glycanB. Complex cell envelope made up of three layersC. cell wall of 20- 80 nm in thickness and also contams tightly bound techoid acidsD. Absence of cell wall lipids |
| Answer» Correct Answer - D | |
| 360. |
Which of the following antibiotics inhibits the cross-linking of peptidoglycan strands, thus causing the lysis of the bacterial cell?A. PenicillinB. CephalosporinC. ChloromycetinD. Both (1) and (2) |
| Answer» Correct Answer - D | |
| 361. |
The concept of unit membrane was propounded byA. DanielliB. DavsonC. RobertsonD. Both (1) and (2) |
| Answer» Correct Answer - C | |
| 362. |
Select the false statement.A. Ribosomes and centriole are non-membrane bound organelles of a cellB. ribosomes are enveloped by a double membraneC. Plasmodesmata are the cytoplasmic connections between plant cellsD. cell membrane is semipermeable or selectively permeable |
| Answer» Correct Answer - B | |
| 363. |
In a cell membrane, peripheral proteinsA. lie on the surface of membraneB. buried in the membraneC. None of theseD. None of the above |
| Answer» Correct Answer - A | |
| 364. |
Plasma membrane hasA. phospholipid, extrinsic and intrinsic protiensB. no proteins, glycolipids and phospholipidsC. histone proteins and lipoproteinsD. None of the above |
| Answer» Correct Answer - A | |
| 365. |
State the main function of lisosome ? |
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Answer» Functions : (a) Their main function is phagy = digestion. (b) They are kind of waste disposal system. (c) They help in digesting foreign materials & cells. |
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| 366. |
State function of Golgi body ? |
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Answer» Functions of Golgi body: (a) It helps in formation of lipids. (b) It helps in formation of middle lamellae. (c) It is secretary in nature. (d) It helps in melanin synthesis. (e) Lipids and proteins synthesized in endoplasmic reticulum are packed at Golgi complex. They provide the site for assembly of new membrane material. |
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| 367. |
Which one is enucleated?A. Squamous epithelial cellsB. Mature leucocyte of manC. Mature erythrocyte of frogD. Mature erythrocyte of man |
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Answer» Correct Answer - D Mature erythrocyte of man is enuclateated. |
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| 368. |
One of the following is enucleateA. Sieve tubeB. Companion cellC. Medullary rayD. All of the above |
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Answer» Correct Answer - A Sieve tube is enucleated. |
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| 369. |
The outermost covering or sheath of chromosome is known asA. pellicleB. membraneC. matrixD. none of these |
| Answer» Correct Answer - A | |
| 370. |
An outer covering membrane is absent overA. nucleolusB. lysosomeC. mitochondrionD. plastids |
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Answer» Correct Answer - A Nucleolus was discovered by Fontana (1 781) and named by Bowman (1840) is a naked roughly rounded darkly stained structure . It is attached to chromatin at specific spot called nucleolar organiser region or NOR . Nucleolus constitute 35% mass of nucleus and is the largest part of nucleus. |
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| 371. |
An outer covering membrane is absent overA. NucleolusB. LysosomeC. MitochondrianD. Plastid |
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Answer» Correct Answer - A An outer covering membrane is absent over nucleolus. |
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| 372. |
Bacteria show a range in the number of arrangenment of flagella. Bacterial flagellum is composed ofA. Two parts`-` pili and fimbriaeB. Three parts`-`filament, hook and basement membraneC. Three parts`-`filament, shaft and basal body.D. Three parts`-`filament, hook and basal body. |
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Answer» Correct Answer - D Bacteria show a range in the number of arrangement of flagella. Bacterial flagellum is composed of three parts`-`filament, hook and basal body. |
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| 373. |
Non`-`membranos organic isA. ChloroplastB. NucleolusC. CentrioleD. Both B and C |
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Answer» Correct Answer - D Non-membranous organelle is nucleolus, ribosome and centriole. |
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| 374. |
Define Cell ? |
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Answer» All living forms are composed of microscopic units called as ‘Cells’. A cell is the basic structural and functional unit of all life forms |
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| 375. |
The cells arranged in Rheo leaf are A) circle B) in rows C) irregular D) diagonally |
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Answer» Correct option is A) circle |
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| 376. |
Different cells have different sizes. Arrange the following cells in an ascending order of their size. Choose the correct option among the followings i. Mycoplasma, ii. Ostrich eggs iii. Human RBC, iv. BacteriaA. i, iv, iii & iiB. i, ii, iii & ivC. ii, i, iii & ivD. iii, ii, i & iv |
| Answer» Correct Answer - a | |
| 377. |
Different cells have different sizes. Arrange the following in an ascending order of their size. I. Mycoplsma. II. Ostrich eggs. III. Human RBC. IV. BacteriaA. I, IV, III and IIB. I, II,III and IVC. II,I,III and IVD. III,II,I and IV |
| Answer» Correct Answer - A | |
| 378. |
Which of the following does not possess lipoprotein- aceous membrane?A. LysosomesB. LomasomesC. RibosomesD. Sphaerosomes |
| Answer» Correct Answer - C | |
| 379. |
Which one of the following statements is not correct ?A. Protoplasm includes cell membrane, cytoplasm and nulceus .B. Smooth endoplasmic reticulum and rough endoplasmic reticulum synthesize proteins and lipids respectively.C. Lysosomes are called suicide bages.D. Chromoplasts are coloured plastides present in flowers and fruits |
| Answer» Correct Answer - B | |
| 380. |
Read the assertion and reason carefully to mark the correct option in question. Assertion: Pili and fimbriae are known to help the bacteria to become motile in streams. Reason: Unlike flagella, pili and fimbriae are surface structures of bacteria .A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - D * Pili and fimbriae are known to help the bacteria to attach in with rocks. * Like flagella, pili and fimbriae are also surface structures of bacteria. |
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| 381. |
The number of mitochondria present in each cell are about A) 100 – 200 B) 150 – 300 C) 100 – 150 D) 100 – 300 |
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Answer» Correct option is C) 100 – 150 |
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| 382. |
Suicide bags of the cell is A) Lysosome B) Ribosome C) NucleosomeD) Golgi complex |
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Answer» Correct option is A) Lysosome |
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| 383. |
The proper folding of proteins following synthesis is as- sisted byA. PolyribosomesB. Specific proteins called chaperonsC. PolysomesD. Free ribosomes |
| Answer» Correct Answer - B | |
| 384. |
Protein synthesis in an animal cell occursA. Only on the ribosomes present in the cytosolB. Only on ribosomes attached to the nuclear envelope and ERC. On ribosomes present in the cytoplasm as well as in mitochondriaD. On ribosomes present in the nucleolus as well as in cytoplasm |
| Answer» Correct Answer - C | |
| 385. |
When ATP conecntration is low or the respiratory chain is inhibited, the mithcohondria are seen in.A. Active stateB. Condensed stateC. Orthodox stateD. Both (1) and (2) |
| Answer» Correct Answer - C | |
| 386. |
In mitochondria, ATP synthesis occursA. in the matrixB. in the intracristal spaceC. at the outer membraneD. at the outer membrane |
| Answer» Correct Answer - B | |
| 387. |
What is the role played by cell wall in plant cells? |
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Answer» Cell wall excretes and inward wall pressure to resists the outward directed pressure exerted by cell sap. So, the plant cells can withstand much greater changes in surrounding medium than animal cells. |
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| 388. |
What are the cell organelles present in a cell? |
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Answer» The cell organelles present in a cell are endoplasmic reticulum, golgi apparatus, lysosomes, mitochondria, ribosomes, plastids and vacuoles. |
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| 389. |
The plasma membrane is more permeable toA. PolysaccharidesB. ProteinsC. GlycoproteinsD. Phospholipids |
| Answer» Correct Answer - D | |
| 390. |
Write one precaution while observing nucleus in cheek cells. |
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Answer» Do not scrap the cheek too hard as it may injure the buccal mucosa. Excess stain should be drained off. |
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| 391. |
What is cell theory? |
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Answer» Cell theory was proposed by Schleiden and Schwann. All living organisms are composed of cells and product of cell. All cells arise from pre-existing cells. |
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| 392. |
A eukaryotic cell hasA. Single chromatin fiberB. Definite nucleusC. Incipient nucleusD. None of these |
| Answer» Correct Answer - B | |
| 393. |
Lysosomes are formed by budding off vesicles from Golgi apparatus and containA. Oxidizing enzymesB. 40 different acid hydrolasesC. Respiratory enzymesD. Basic hydrolases |
| Answer» Correct Answer - B | |
| 394. |
The main function of lysosomes isA. Only intracellular digestionB. Only extracellular digestionC. Both intracellular and extracellular digestionsD. None |
| Answer» Correct Answer - C | |
| 395. |
Which of the following pair lack the unit membraneA. Nucleus and ERB. Mitochondria and ChloroplastC. Ribosome and nucleolusD. Golgi body and lysosome |
| Answer» Correct Answer - C | |
| 396. |
HeterochromatinA. is involved in protein synthesisB. is compactly coiled regionC. have less DNAD. Both (a) and (c) |
| Answer» Correct Answer - B | |
| 397. |
Which of the following is not a difference between euchromatin and heterochromatin?A. Heterochromatin stains deeply while euchromatin lightlyB. Heterochromatin is more condensed than euchromatinC. Heterochromatin is transcriptionally inactive while euchromatin is activeD. Hetrochromatin lies close to the nucleolus while euchromatin to nuclear lamina. |
| Answer» Correct Answer - D | |
| 398. |
The fluid inside the nucleus is known as A) Nucleoplasm B) Cytoplasm C) Protoplasm D) Germplasm |
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Answer» A) Nucleoplasm |
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| 399. |
Who observed cell division for the first time ? A) Rudolf Virchow B) Robert Hooke C) HugodevrisD) Robert Brown |
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Answer» A) Rudolf Virchow |
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| 400. |
Chloropiasts are present in A) roots B) green leaves C) dried leaves D) flowers & fruits |
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Answer» B) green leaves |
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