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Free download in PDF Cell Organelles Short 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.
41
Most abundant blood cells in the human body are
[A]
WBCs
[B]
RBCs
[C]
Platelets
[D]
Plasma Cells
42
Lock and Key model is also known as
[A]
Template model
[B]
Induced fit model
[C]
Khosland’s Model
[D]
Enzyme-substrate interaction model
43
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
Answer: Enzymes are inorganic catalyst
44
Amount of total blood volume in an individual is approximately-
[A]
50 ml/Kg body weight
[B]
60 ml/Kg body weight
[C]
80 ml/Kg body weight
[D]
None of the above
Answer: 80 ml/Kg body weight
45
Haematocrit value is the ratio of
[A]
WBC to plasma
[B]
Platelets to plasma
[C]
RBCs to plasma
[D]
Total blood cells to plasma
46
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]
all of the above
47
Which component of protein contribute to maximum percentage to total plasma protein
[A]
Albumin
[B]
Globulin
[C]
Fibrinogen
[D]
Prothrombin
48
Serum does not contain
[A]
Calcium
[B]
Prothrombin
[C]
Factor VIII
[D]
Factor-X
49
In Sickle cell anaemia, the defect lies in which polypeptide
[A]
Alpha chain
[B]
Beta chain
[C]
Gamma chain
[D]
All of the above
50
Increase in RBC count beyond 10 million per cu mm is known as
[A]
Anisocytosis
[B]
Poikilocytosis
[C]
Polycythemia
[D]
All of the above
51
During hypoxia Kidney releases
[A]
Renin
[B]
Renal Erythopoietic factor
[C]
Erythropoietin
[D]
None of the above
Answer: Renal Erythopoietic factor
52
Intrinsic factor is secreted by
[A]
Liver
[B]
Chief cells of stomach
[C]
Parietal cells of stomach
[D]
None of the above
Answer: Parietal cells of stomach
53
Which of the following extrinsic factor is required for maturation of RBCs
[A]
Vit B12
[B]
Folic acid
[C]
Iron
[D]
Both (a) and (b)
54
The process by which WBCs squeeze through pores in capillary wall is
[A]
Chemotaxis
[B]
Pinocytosis
[C]
Opsonization
[D]
Diapedesis
55
Commonest anaemia in India is
[A]
Pernicious anaemia
[B]
Sickle cell anaemia
[C]
Iron deficiency anaemia
[D]
All of the above
Answer: Iron deficiency anaemia
56
Which of the following statements were true regarding ER
[A]
ER provides structural framework to the cell
[B]
ER acts as intra cellular transporting system
[C]
SER is involved in the synthesis of lipid
[D]
All of the above
57
The term Golgi apparatus was coined by
[A]
Camillo Golgi
[B]
Robert Brown
[C]
Robert Hook
[D]
Benda
58
In mitochondria cristae act as sites for
[A]
protein synthesis
[B]
phosphorylation of flavoproteins
[C]
breakdown of macromolecules
[D]
Oxidation–reduction reaction
Answer: Oxidation–reduction reaction
59
Mitochondrial inner membrane is rich in which phospholipid
[A]
Phosphatidyl inositol
[B]
Phosphatidyl serine
[C]
Cardiolipin
[D]
All the above
60
Nucleus was first discovered by
[A]
Robert Hook
[B]
Strasburger
[C]
Robert Brown
[D]
None of the above
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