General Science :: All Aptitude Test ::

1.Name the site of pyruvate oxidation.
A. Cytosol
B. Mitochondrial matrix
C. Mitochondrial membrane
D. Cytosol

2.How many molecules of Co2 are produced by an acetyl group of acetyl-Co-A in a citric acid cycle?
A. 3
B. 5
C. 1
D. 3

3.Which of the following enzyme is inhibited by Fluoroacetate in Krebs cycle?
A. Citrate synthase
B. Aconitase
C. Isocitrate dehydrogenase
D. Citrate synthase

4.FeS and FAD are the prosthetic groups of?
A. Complex I
B. Complex II
C. Complex III
D. Complex I

5.What is the basic functional and structural unit of organisms?
A. Nucleus
B. DNA
C. Cell
D. Nucleus

6.Name the Scientists who first discovered the cell in the piece of cork?
A. Louis Pasteur
B. Anton van Leeuwenhoek
C. Robert Hooke
D. Louis Pasteur

7.Which of the following is not the part of modern cell theory?
A. All living things are made up of one or more cells
B. The cell is a functional and structural unit of life
C. Energy flow takes place within the cell
D. All living things are made up of one or more cells

8.What is the permeability of the plasma membrane?
A. Selectively permeable
B. Impermeable
C. Single phase flow
D. Selectively permeable

9.Which of the following is described by the fluid mosaic model?
A. Nucleus
B. Plasma membrane
C. Endoplasmic reticulum
D. Nucleus

10.Mark the component which is not the part of lipid bilayer?
A. Glycerol or Sphingosine
B. Fatty acids
C. Tryptophan and methionine
D. Glycerol or Sphingosine

11.What is the name of the hollow sphere formed by lipid bilayer?
A. Cholesterol
B. Lipid raft
C. Micelle
D. Cholesterol

12.Which of the following is ABC transport protein that transport lipid in opposite direction?
A. ATPase
B. Scramblase
C. Floppases
D. ATPase

13.Out of the following, which is not an ATP dependent transporter of lipid?
A. V-type ATPase
B. Scramblase
C. Flippase
D. V-type ATPase

14.Name the technique which is used to visualize the lateral movement of lipids?
A. FRAP
B. Microscopy
C. Electrophoresis
D. FRAP

15.Spectrin and ankyrin are the example of?
A. Polytopic
B. Monotopic
C. Peripheral protein
D. Polytopic

16.Name the technique which is used to visualize the distribution of the protein in the membrane?
A. Patch clamp technique
B. FRAP
C. Freeze-etching
D. Patch clamp technique

17.Which of the following transport protein allows the transport of single solute from one side of the membrane to other?
A. Active transport
B. Passive transport
C. Uniporters
D. Active transport

18.What is the function of antiporters?
A. Transfer of the second solute in the same direction
B. Transfer of the second solute in the opposite direction
C. Transfer of single solute
D. Transfer of the second solute in the same direction

19.Name the type of antibodies which are present in blood group ‘O’?
A. Anti-A and anti-B
B. Anti-A
C. Anti-B
D. Anti-A and anti-B

20.Which of the following transport mechanism does not use metabolic energy?
A. Secondary active transport
B. Primary active transport
C. Active transport
D. Secondary active transport

21.Which of the following glucose transporter works on the liver?
A. GLUT-1
B. GLUT-2
C. GLUT-3
D. GLUT-1

22.Name the family of transport protein which allows the water to cross the membrane?
A. Facilitated diffusion
B. Ion channels
C. Aquaporins
D. Facilitated diffusion

23.Which of the following ATPases are used to maintain the acidic pH of lysosomes and other vesicles?
A. P-ATPases
B. V-ATPases
C. F-ATPases
D. P-ATPases

24.Which of the following process is also known as cell drinking?
A. Pinocytosis
B. Phagocytosis
C. Clathrin-mediated endocytosis
D. Pinocytosis

25.Genetic information stored in mRNA is translated to polypeptide by?
A. Ribosome
B. Nucleus
C. Endoplasmic reticulum
D. Ribosome

26.Which of the following ribosomal RNA does not take part in rDNA organization of E.coli?
A. 5S RNA
B. 23S RNA
C. 16S RNA
D. 5S RNA

27.What is the sedimentation coefficient of mitochondrial ribosome of humans?
A. 70S
B. 55S
C. 80S
D. 70S

28.Which of the following Scientist discovered ribosome for the first time?
A. George Emil Palade
B. Theodor Schwann
C. Antonie van Leeuwenhoek
D. George Emil Palade

29.Which of the following is not a sorting signal present of protein?
A. Signal patch
B. Signal peptide
C. Carbohydrate sequence
D. Signal patch

30.Which of the following statement is defines polysomes?
A. Lysosomal aggregation
B. Multiple units of ribosomes
C. Attachment of many ribosomes to common mRNA
D. Lysosomal aggregation


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