biology MCQs – Page 19

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs
361. The sequence of 3 bases on tRNA which is complementary to condon of mRNA is called____________?
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A. Gene

B. Anticodon

C. Code

D. Codon

362. Which of the following relationship is NOT an example of symbiosis?
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A. Mycorrhizal fungi and tree roots

B. Algae and fungi in a lichen

C. Rhizobium and leguminous plants

D. Marchantia sporophyte and gametophyte
363. Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?
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A. iv only

B. i ii iii & iv

C. i & ii

D. iii & iv

364. Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of__________________?
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A. C-H bonds

B. C-C bonds

C. C-N bonds

D. C-O bonds

365. Ribonucleo-protein particles are the name of__________?
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A. RNA

B. DNA

C. Nucleus

D. Eukaryotic ribosomes
366. Joints present in skull are example of_______________?
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A. Cartilaginous joints

B. Slightly moveable joints

C. Synovial Joints

D. Fibrous joints
367. Other name for Kingdom monera is_______________?
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A. None of these

B. Archae

C. Prokaryotae

D. Protoctista

368. Which of the following cytoskeletal fiber contain tubulin protein?
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A. One which help in assembly of spindles during mitosis.

B. One involved in internal cell motion.

C. One involved in maintenance of cell shape.

D. Both b and c

369. The word which E-Chatton suggested for bacteria and blue green algae was_____________?
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A. Eu-cariotique

B. Autotrophs

C. Pro-cariotique

D. Heterotrophs

370. Those organisms which can prepare their own food from simple inorganic material and can store energy are called___________?
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A. Heterotrophs

B. Procariotique

C. Autotrophs

D. Eu-cariotique

371. ATP is a an important molecule for its major function___________?
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A. As an energy currency of the cell

B. As a coenzyme

C. Both a and b

D. None of these

372. Number of nuclear pores/nucleus in an RBC are_________?
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A. 3?4?

B. 30000

C. 10000

D. 1?3

373. Chlorophyll molecule contrains __________ as central metal ion.
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A. Mg2+?

B. Cu2+

C. Zn2+

D. Fe2+

374. Which structural organization is most common in globular proteins____________?
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A. Primary

B. Secondary

C. Tertiary

D. Quaternary

375. The one which is not a globular protein__________?
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A. Myosin

B. Enzyme

C. Haemoglobin

D. Anti Rh-antibody

376. The productivity of aquatic ecosystem is basically determined by light and____________?
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A. O2

B. CO2

C. Nutrients

D. Water

377. Most of the cellular secretions are ________ in nature?
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A. Glycolipids

B. Nucleohistones

C. Glycoproteins

D. Proteins

378. Fatty acids containing 18 C atoms and a single double bond is____________?
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A. Saturated Fatty acid

B. Plamitic acid

C. Unsaturated fatty acid

D. Oleic Acid
379. Highest form of learning is__________________?
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A. Latent learning

B. Insight learning

C. Instinct

D. Operant conditioning

380. In which of the following location enzymes controlling cellular respiration are present____________?
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A. Ribosome

B. Chlorophast

C. Milochondria

D. Nucleus