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Cell Organelles MCQs | Cell Organelles Multiple Choice Questions(MCQs) & Answers

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Free download in PDF Cell Organelles Multiple Choice Questions & Answers for competitive exams. These short objective type questions with answers are very important for competitive exams like NEET, AIIMS, JIPMER etc. as well as Board exams. These short solved questions or quizzes are provided by Gkseries.
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(1) Holoenzyme is made of
[A] Apoenzyme and Zymogen
[B] Apoenzyme and Co-enzyme
[C] Co-enzyme and Prosthetic group
[D] Prosthetic group and Co-factor
Answer: Apoenzyme and Co-enzyme
(2) Blue green Algae are:
[A] Prokaryotes
[B] Eukaryotes
[C] Both a) and b)
[D] Neither a) nor b)
Answer: Prokaryotes

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(3) Name the process in which the membrane of a vesicle can fuse with the plasma membrane and extrude its contents to the surrounding medium?
[A] Endocytosis
[B] Osmosis
[C] Diffusion
[D] Exocytosis
Answer: Exocytosis

Multiple Choice Questions with Answers on Cell Organelles | EBook

Multiple Choice Questions with Answers on Cell Organelles | EBook

Multiple Choice Questions with Answers on Cell Organelles | EBook

(4) The jelly like substance present inside the cell is known as:
[A] Ectoplasm
[B] Nucleoplasm
[C] Cytoplasm
[D] None of the above
Answer: Cytoplasm
(5) Name the process in which the passage of water goes from a region of higher concentration to a region of lower concentration through a semi permeable membrane?
[A] Diffusion
[B] Osmosis
[C] Neither a) nor b)
[D] Both a) and b)
Answer: Osmosis
(6) Name the process in which the ingestion of material by the cells is done through the plasma membrane?
[A] Egestion
[B] Diffusion
[C] Endocytosis
[D] Osmosis
Answer: Endocytosis
(7) Name an Organelle which serves as a primary packaging area for molecules that will be distributed throughout the cell?
[A] Mitochondria
[B] Golgi apparatus
[C] Vacuole
[D] Plastids
Answer: Golgi apparatus
(8) Extrinsic system of blood clotting is initiated by
[A] Factor-III
[B] Factor-VIII
[C] Factor-II
[D] Factor-I
Answer: Factor-III
(9) Homeostasis means
[A] Control of internal environment of the body
[B] Adaptation with the environment
[C] Constant environment of the body
[D] All of the above
Answer: Constant environment of the body
(10) Enzymes bringing about hydrolysis of esters and peptides are :
[A] Transferases
[B] Lyases
[C] Hydrolases
[D] All of the above
Answer: Hydrolases
(11) Dialysis causes
[A] Separation of colloids from crystalloids
[B] Purification of colloids
[C] Precipitation of colloids
[D] None of the above
Answer: Separation of colloids from crystalloids
(12) Ultrafiltration helps in
[A] Formation of Glomerular filtrate
[B] Formation of urine
[C] Accumulation of proteins
[D] None of the above
Answer: Formation of Glomerular filtrate
(13) Who discovered blood groups
[A] F. Galton
[B] Carl Linnaeus
[C] C. Landsteiner
[D] Edward Jenner
Answer: C. Landsteiner
(14) Aerobic respiration is performed by :
[A] Glyoxisomes
[B] Mitochondria
[C] Lysosomes
[D] Chloroplast
Answer: Mitochondria
(15) Bile reduces the surface tension and causes
[A] Emulsification of fat
[B] Digestion of fat
[C] Absorption of fat
[D] All of the above
Answer: All of the above
(16) A unit membrane is about :
[A] 50-60 Å thick
[B] 60-75 Å thick
[C] 75-100 Å thick
[D] 100-120 Å thick
Answer: 75-100 Å thick
(17) Coenzyme is :
[A] Always a protein
[B] Often a metal
[C] Always an inorganic compound
[D] Often a vitamin
Answer: Often a vitamin
(18) Enzyme exist in the cells as-
[A] Solid
[B] Crystals
[C] Colloid
[D] None of the above
Answer: Colloid
(19) An enzyme brings about :
[A] Reduction in activation energy
[B] Increase in reaction time
[C] Increase in activation energy
[D] All the above
Answer: Reduction in activation energy
(20) Most accepted structural model of plasma membrane is
[A] Sandwitch model
[B] Unit membrane model
[C] Fluid-mosaic model
[D] None of the above
Answer: Fluid-mosaic model

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