CYTOLOGY Mcqs :-
1. A condition of an individual born with genes that increase the likelihood of a specific disease is:
- Hereditary predisposition
- Oncogene
- Metastasis
- Mutagen
2. Each ribosome consists of roughly 40 percent RNA and 60 percent proteins.
- True
- False
3. A selectively permeable cell membrane permits the free passage of some materials but restricts the passage of others.
- False
- True
4. Ribosome’s are intracellular factories consisting and small and large subunits: together they manufacture proteins.
- True
- False
5. Cytosol or intracellular fluid contains dissolved nutrients, ions, soluble and insoluble proteins, and waste products.
- False
- True
6. Which cell structure is responsible for the intracellular removal of damaged organelles or of pathogens?
Golgi apparatus
Mitochondria
Lysosome
Nucleus
Peroxisome
7. Which type of cells are either the sperm of males or the oocytes of females?
S.. cells
Neural cells
Somatic cells
Muscle cells
8. Which cell structure is responsible for storage, alteration, and packaging of secretory products and lysomomal enzymes?
Peroxisome
Lysosome
Golgi apparatus
Nucleus
Mitochondria
9. Microvillus anchor the cytoskeleton to integral proteins of the cell membrane. This function stabilizes the position of the membrane proteins, provides additional mechanical strength to the cell, and firmly attaches the cell membrane to the underlying cytoplasm.
False
True
10. Cells are: (Check all that are correct).
Structural building bocks of all plants and animals
The smallest structural units that perform all vital functions
Produced by the division of pre-existing cells
11. Which cell structure is responsible for strength and support. movement of cellular structures and materials?
Cilia
Cytoskeleton
Ribosome’s
Centro some
12. Integral proteins are attached to either the inner or outer membrane surface of a cell.
False
True
13. Cellular toxins can be absorbed by the endoplasmic reticulum (ER) and neutralized by enzymes found on its membrane.
True
False
14. Which cell structure has the function of distributing materials by diffusion. storing glycogen. pigments. and other materials?
Centro some
Cytosol
Cell membrane
Microvillus
15. Which cell structure produces 95 percent of the Al? required by the cell?
Lysosome
Golgi apparatus
Nucleus
Mitochondria
16. A mass or swelling in which the cells no longer respond to normal control mechanisms but divide rapidly is:
Malignant tumor
Cancer
Benign tumor
Carcinogen
17. Which cell structure controls metabolism, stores and processes genetic information and controls protein synthesis?
Golgi apparatus
Lysosome
Nucleus
18. Large compounds can be passively transported across the cell membrane by special peripheral proteins in a process called facilitated diffusion.
True
False
19. Cells use pinocytosis to transfer fluid and solutes from the bloodstream to the surrounding tissues.
True
False
20. Which cell structure is essential for movement of chromosomes during cell division, and organization of microtubules in cytoskeleton?
Microvillus
Ribosome’s
Cilia
Cytoskeleton
Centro some
21. In which phase does a cell replicate its chromosomes, a process that involves the synthesis of both DNA and associated his tones?
Inter phase
G0 phase
S phase
G1 phase
G2 phase
22. A flagellum moves a cell through the surrounding fluid, rather than moving the fluid past a stationary cell.
True
False
23. Genes that suppress mitosis and growth in normal cells are:
Carcinogens
Mutagens
Anti-ontogenesis or TSG
Ontogenesis
24. The net movement of material from an area where the concentration is relatively high to an areas where the concentration is relatively low is known as:
Facilitated diffusion
Permeability
Osmosis
Diffusion