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6. Mitochondria

  • Contain hydrolytic enzymes
  • Are involved in cellular defense mechanism
  • Are found in each and every cell of body
  • Contain DNA
  • Are produced by ER

7. During mitosis nucleus begins to disappear in

  • Anaphase
  • Early prophase
  • Late prophase
  • Early metaphase
  • Late metaphase

8. Which of the following is not a lysosomal enzyme

  • Aryl sulfatase
  • Phosphatase
  • Cerebrosidase
  • Glycosidase
  • Ribonuclease

9. Identify the nom-membranous organelle from following

  • Mitochondria
  • Golgi Apparatus
  • ER
  • Ribosome
  • Nucleus

10. What is not a function of glycocalyx

  • Provides cell cell adhesion
  • Provides energy to cell
  • Provides an overall surface negative charge
  • Many of its carbohydrates act as receptors for specific hormones
  • Involved in immune reaction

11. Endoplasmic Reticulum

  • Contains enzymes for cellular resp.
  • Contains gel like matrix
  • Synthesizes ribosomes
  • Provides major share of metabolic machinery
  • Is abundant in muscle cells

12. Regarding cytoskeleton

  • Source of origin of ER
  • Microfilaments are polymers of tubulin
  • Are absent in muscle cells
  • Microtubules provide a rigid physical structure to cell
  • Mitotic spindles are made up of microfilaments

13. Peroxisomes

  • Are involved in breakdown of food particles
  • Are synthesized by golgi apparatus
  • Are involved in oxidative phosphorylation
  • Synthesize H2O2
  • Are membrane bound organelles

14. Which of the following is not a constituent of cell membrane

  • Cholesterol
  • Glycolipids
  • Lipoproteins
  • Phospholipids
  • Triglycerides

15. The main function of centrosome is

  • Protein synthesis
  • Chemotaxis
  • Secretion
  • Formation of mitotic spindle
  • Cell death