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General Biology Multiple choice questions, Exams of Animal Anatomy and Physiology

Upper Valley Teacher InstituteAnimal Anatomy and Physiology

100 Multiple Choice Questions with Solution key.

Typology: Exams

2021/2022

Uploaded on 02/24/2022

ekansh
ekansh 🇺🇸

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MULTIPLE CHOICE QUESTIONS
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
2. Which of the following organelle is called ‘Suicidal Bag’
a. Mitochondria b. Endoplasmic reticulum
c. Lysosome d. Ribosome
3. Most abundant blood cells in the human body are
a. WBCs b. RBCs
c. Platelets d. Plasma Cells
4. Number of iron atoms in one haemoglobin molecule are
a. 1 b. 3
c. 4 d. 8
5. Which of the following is not a co-enzyme-
a. NAD b. NADP
c. FAD d. Mn++
6. Activity of allosteric enzymes are influenced by
a. Allosteric modulators b. Allosteric site
c. Catalytic site d. None of the above
7. In competitive inhibition, inhibitors bears a close structural similarity with the
a. Co-enzyme b. Co-factor
c. Prosthetic group d. Substrate
8. Enzyme acts best at a particular temperature called
a. Catalytic Temperature b. At normal Body temperature
c. Optimum temperature d. None of the above
9. Lock and Key model is also known as
a. Template model b. Induced fit model
c. Khosland’s Model d. Enzyme-substrate interaction
model
10. Which bond is not associated with Enzyme-substrate interaction -
a. Hydrogen bonds b. Ionic bonds
c. Di-sulfide bonds d. Van deer Waal’s force of
attraction
11. Which of the following statement is incorrect
a. Enzymes are protein in nature b. Enzymes are colloidal in nature
c. Enzymes are thermolabile d. Enzymes are inorganic catalyst
12. Apoenzymes dissociates from co-enzymes due to
a. Change in pH b. Change in temperature
c. Change in substrate concentration d. Change in inhibitor concentration
13. Which of the following enzyme inhibitions shows decreased Km Value ?
a. Competitive inhibition b. Un-competitive inhibition
c. Non-competitive inhibition d. Feed back inhibition
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MULTIPLE CHOICE QUESTIONS

  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
  2. Which of the following organelle is called ‘Suicidal Bag’ a. Mitochondria b. Endoplasmic reticulum c. Lysosome d. Ribosome
  3. Most abundant blood cells in the human body are a. WBCs b. RBCs c. Platelets d. Plasma Cells
  4. Number of iron atoms in one haemoglobin molecule are a. 1 b. 3 c. 4 d. 8
  5. Which of the following is not a co-enzyme- a. NAD b. NADP c. FAD d. Mn++
  6. Activity of allosteric enzymes are influenced by a. Allosteric modulators b. Allosteric site c. Catalytic site d. None of the above
  7. In competitive inhibition, inhibitors bears a close structural similarity with the a. Co-enzyme b. Co-factor c. Prosthetic group d. Substrate
  8. Enzyme acts best at a particular temperature called a. Catalytic Temperature b. At normal Body temperature c. Optimum temperature d. None of the above
  9. Lock and Key model is also known as a. Template model b. Induced fit model c. Khosland’s Model d. Enzyme-substrate interaction model
  10. Which bond is not associated with Enzyme-substrate interaction - a. Hydrogen bonds b. Ionic bonds c. Di-sulfide bonds d. Van deer Waal’s force of attraction
  11. Which of the following statement is incorrect a. Enzymes are protein in nature b. Enzymes are colloidal in nature c. Enzymes are thermolabile d. Enzymes are inorganic catalyst 1 2. Apoenzymes dissociates from co-enzymes due to a. Change in pH b. Change in temperature c. Change in substrate concentration d. Change in inhibitor concentration
  12. Which of the following enzyme inhibitions shows decreased Km Value? a. Competitive inhibition b. Un-competitive inhibition c. Non-competitive inhibition d. Feed back inhibition

1 4. Amount of total blood volume in an individual is approximately- a. 50 ml/Kg body weight b. 60 ml/Kg body weight c. 90 ml/Kg body weight d. 80 ml/Kg body weight

  1. Normal blood pH is a. 7.3 b. 7. c. 7.4 d. 8.
  2. Haematocrit value is the ratio of a. WBC to plasma b. Platelets to plasma c. RBCs to plasma d. Total blood cells to plasma
  3. Plasma represents _______ percent of total blood volume a. 35 b. 45 c. 55 d. 5
  4. Normal amount of plasma protein ranges from a. 2.2-4.3 gm% b. 4.4-6.3 gm% c. 6.4-8.3 gm% d. 8.4-10.2 gm%
  5. Which component of protein contribute to maximum percentage to total plasma protein a. Albumin b. Globulin c. Fibrinogen d. Prothrombin
  6. Serum does not contain a. Calcium b. Prothrombin c. Factor VIII d. Factor-X
  7. Combination of heam with O 2 is called a. Oxyhaemoglobin b. Oxidation c. Oxygenation d. Oxidized haem
  8. Adult haemoglobin contains _______polypeptide chains a. 2α,2γ b. 2α,2β c. 2α,2δ d. 2β,2γ
  9. Each haemoglobin molecules carries___________ number of O 2 molecules a. 2 b. 4 c. 1 d. 8
  10. Each gram% of haemoglobin, when fully saturated, can carry___________ ml of O 2 a. 1.34 ml b. 3.14 ml c. 4.13 ml d. 5ml
  11. In Sickle cell anaemia, the defect lies in which polypeptide a. Alpha chain b. Beta chain c. Gamma chain d. Delta chain
  12. Average mean corpuscular diameter is __________ μm a. 5.1 b.6. c. 7.3 d. 8.
  13. Increase in RBC count beyond 10 million per cu mm is known as a. Anisocytosis b. Poikilocytosis c. Polycythemia d. Leucocytosis
  14. During erythropoiesis haemoglobin first appears in a. Early normoblast b. Intermediate normoblast

c. Golgian vacuoles d. None of the above

  1. In mitochondria cristae act as sites for a. protein synthesis b. phosphorylation of flavoproteins c. breakdown of macromolecules d. Oxidation–reduction reaction
  2. Mitochondrial inner membrane is rich in which phospholipid a. Phosphatidyl inositol b. Phosphatidyl serine c. Cardiolipin d. Phosphatidyl choline
  3. Which of the following is NOT a function of mitochondrion a. electron transport and associated ATP production b. Fatty acid breakdown c. non-shivering thermogenesis d. glycolysis and associated ATP production
  4. Who coined the term mitochondria a. Kolliker b. Benda c. Fleenming d. Robert Brown
  5. Nucleus was first discovered by a. Robert Hook b. Strasburger c. Robert Brown d. None of the above
  6. Nuclear membrane is in continuous connection with a. SER b. RER c. Golgi apparatus d. Lysosomes
  7. The number of nuclear pores depends on a. Size of cells b. Transcriptional activity of the cell c. DNA content of the cell d. all of the above
  8. The DNA Protein ratio in chromatin is a. 3:1 b. 2: c. 1:1 d. 4:
  9. The function of nucleolus is a. RNA synthesis b. DNA synthesis c. Histone synthesis d. Ribosomal subunit synthesis
  10. The basic protein of the nucleus are a. nucleohistones b. nuceoprotamines c. both (a) and (b) d. none of these
  11. Lysosomes are present in all except a. muscle cells b. acinar cells c. erythrocytes d. hepatocytes
  12. Which of the following is the function of lysosomes a. autophagy b. autolysis c. digestion d. all of the above
  13. Lysosomes are involved in a. Extracellular digestion b. Intracellular digestion c. both (a) and (b) d. none of the above
  1. Who identified lysosome a. Novikoff b. Claude c. Palade d. none of the above
  2. All the following has ribosomes except a. nucleus b. mitochondrion c. chloroplast d. cytoplasm
  3. In 70S ribosome ‘S’ stands for a. S.I unit b. Solubility factor c. Svedberg unit d. None of the above
  4. 80S ribosomes are found in a. Eukaryotes b. Prokaryotes c. Both eukaryotes and Prokaryotes d. Eukaryotic plant cells
  5. The subunits of 80S ribosomes include a. 40S and 50S b. 30S and 50S c. 40S and 60S d. 20S and 60S
  6. The subunits of 70S ribosomes include a. 40S and 50S b. 30S and 40S c. 30S and 50S d. 20S and 50S
  7. 70S ribosomes occur in a. Viruses b. prokaryotes c. eukaryotic plant cells d. eukaryotic animal cells
  8. Ribosomes are made up of a. RNA only b. RNA and Proteins c. RNA,DNA and Proteins d. nucleic acids, proteins and lipids
  9. The rough ER is specially well developed in cells actively engaged in a. Protein synthesis b. Nucleotide synthesis c. Lipid synthesis d. Secretory functions
  10. The nucleus contains a. Mitochondria b. Golgi apparatus c. Chromosomes d. Lysosomes
  11. Plasma membrane is a. Permeable b. Selectively permeable c. Impermeable d. Semi-permeable
  12. Most accepted structural model of plasma membrane is a. Sandwitch model b. Unit membrane model c. Lamellar model d. Fluid-mosaic model
  13. Plasma membrane is composed of a. Glycoproteins b. Lipoproteins c. Chromoproteins d. Lipids
  14. Ribosomes contain maximum amount of a. Steriods b. Lipids c. RNA d. DNA
  15. Which structure is present in animal cell but is absent from plant cell? a. Centrioles b. Golgi apparatus
  1. pH of RBC is lower due to a. Na+-K+^ Pump action b. Gibb’s Donnan Effect c. Efflux of OH-^ from RBC d. None of the above
  2. Gibb’s Donnan effect creates a. Diffusion b. Surface tension c. Osmotic pressure d. None of the above
  3. Transmembrane potential results due to a. Donnan Effect b. Influx and efflux of oppositely charged ions c. Retention of anions inside the membrane d. All the above
  4. Rate of diffusion of a substance depends on a. Presence of semi-permeable membrane b. Concentration gradient of solute c. Concentration of solvent d. Concentration of ions
  5. 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
  6. Diffusion is more rapid in a. Solid b. Liquid c. Gas d. Mixture of liquid and gas
  7. In Osmosis, movement of __________ occurs through the semi-permeable membrane a. Solvent b. Solute c. Both (a) and (b) d. All the above
  8. Viscosity of blood increases with rise in a. Albumin b. Globulin c. Fibrinogen d. Prothrombin
  9. Osmotic pressure across the capillary wall is exerted by a. Size of the molecule b. Shape of the molecule c. Concentration of the molecule d. All the above
  10. Effect of change of temperature on viscosity involves a. Increase in viscosity b. Decrease in viscosity c. No change d. Both (a) and (b)
  11. pH means a. – log [H+] b. – log 10 [H+] c. – log [H] d. log [H+]
  12. Microcytic anaemia develops in a. Vit B 12 deficiency b. Folic acid deficiency c. Both (a) and (b) d. None of the above
  13. Extrinsic system of blood clotting is initiated by a. Factor-III b. Factor-VIII c. Factor-II d. Factor-I
  14. One of the following is NOT an anticoagulant 1 a. Heparin b. Protein-C

c. Antithrombin-III d. Thrombin

  1. Following are the membrane bound cell organelles except a. Endoplasmic reticulum b. Lysosome c. Ribosomes d. Peroxisome
  2. The intrinsic protein present in the cell membrane mainly functions as a. Enzymes b. Carrier c. Pores d. Channels

ANSWERS

1 .(b) 2 .(c) 3 .(b) 4 .(c) 5 .(d) 6 .(a) 7 .(d) 8 .(c) 9 .(a) 10 .(c) 11 .(d) 12 .(a) 13 .(a) 1 4.(d) 1 5.(c) 16 .(c) 17 .(c) 18 .(a) 19 .(a) 20 .(a) 21 .(a) 22 .(b) 23 .(d) 24 .(b) 25 .(b) 26 .(c) 27 .(c) 28 .(b) 29 .(b) 30 .(c) 31. (d) 32 .(c) 33 .(d) 34 .(b) 35 .(c) 36 .(b) 37 .(c) 38 .(a) 39 .(d) 40 .(d) 41 .(a) 42 .(b) 43 .(d) 44 .(c) 45 .(d) 46. (b) 47 .(c) 48 .(b) 49 .(b) 50 .(c) 51 .(d) 52 .(c) 53 .(c) 54 .(d) 55 .(c) 56 .(a) 57 .(a) 5 8.(c) 59 .(a) 60 .(c) 6 1.(c) 62 .(b) 63 .(b) 64 .(a) 65 .(c) 66 .(b) 67 .(d) 68 .(b) 69 .(c) 70 .(a) 71 .(c) 72 .(b) 73 .(a) 74 .(d) 75 .(b) 76 .(c) 77 .(a) 78 .(d) 79 .(d) 80 .(c) 81 .(b) 82 .(d) 83 .(a) 84 .(a) 85 .(b) 86 .(c) 87 .(a) 88 .(b) 89 .(c) 90 .(c) 91 .(a) 92 .(a) 93 .(c) 94 .(d) 95 .(b) 96 .(c) 97 .(a) 98 .(d) 99 .(c) 100 .(a)