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Quiz 1
Mdcat-past-papers - UHS - Biology Quiz
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Board: UHS | Subject: Biology |
1. Plasma membrane is chemically composed of:
Phospholipids Only
Lipids and carbohydrates
Lipids and Proteins
Glycoproteins
2. The --- model of plasma membrane suggests that proteins are embedded in lipid bilayer:
Unit membrane
Fluid mosaic
Permeable
Ultracentrifuge
3. The intake of liquid materials across the cell membrane is:
Phagocytosis
Endocytosis
Pinocytosis
Exocytosis
4. Fluid mosaic model of plasma membrane states that protein molecules float in a fluid-layer:
Galactose
Glucose
Phospholipids
Carbohydrates
5. The rapid exchange of materials through carrier protein across the plasma membrane is called:
Passive Diffusion
Active transport
Endocytosis
Facilitated
6. The basic structure of plasma membrane is:
Proteins
Cholesterol
Cytoskeleton
Phospholipids
7. The ability to distinguish between two separate points is:
Magnification
Fractionation
Centrifugation
Resolution
8. If 15um size object is observed under light microscope using 5x eyepiece and 10x objective, its magnified image size will be:
250 um
50 um
750 um
500 um
9. Passive processes for the movement of molecules across cell surface membrane are:
Facilitated diffusion and osmosis
Pinocytosis and facilitated diffusion
Diffusion and exocytosis
Osmosis and Phagocytosis
10. Cell wall may be absent in which of the following?
Plant & Algae
Fungi & Archaea
Algae & Fungi
Bacteria & Archaea
11. Movement of molecules against the concentration gradient is?
Passive transport
Active transport
Facilitated Diffusion
F
12. Cells of different types can be distinguished on the basis of surface:
Phospholipids
Glycolipids & glycoproteins
Globular proteins
Cholesterol
13. Endoplasmic Reticulum consists of system of flattened membrane bounded sacs which are named as:
Cristae
Marks
Cisternae
Tubules
14. Lipid synthesis and metabolism takes place in which of the following organelle?
Mitochondria
Vacuole
Rough Endoplasmic Reticulum
Smooth Endoplasmic Reticulum
15. The enzymes of lysosomes are synthesized on:
RER
SER
Chloroplast
Golgi Apparatus
16. The soluble part of the fluid that remains when all the organelles are removed is know as:
Solution
Gelatin material
Cytoskeleton
Cytosol
17. Which of the following structure is involved in synthesis of lipids?
Endoplasmic Reticulum
Golgi complex
Centriole
Mitochondria
18. The organelle involved in detoxification of drugs and poisons in liver cells is:
SER
RER
Golgi
Lysosomes
19. Which of the following organelle is concerned with cell secretions?
Ribosomes
Golgi apparatus
Lysosomes
Mitochondria
20. Ribosomes exists in two forms, either attached with RER or freely dispersed in:
Tonoplast
Golgi
Cytoplasm
SER
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