Reference no: EM131224125

1. __________   is the fundamental structural and  __________      unit of all living organisms

a. cell, functional

b. cell, microscopic

c. nucleus, functional

d. DNA, microscopic

2. Match the scientists with their respective discoveries orderly:  Anton Von Leuvenhock, Robert Brown, Schleider and Schwann,  Singer and Nicolson

a. Cell theory, fluid mosaic model, nucleus, cell

b. fluid mosaic model, nucelus, cell, cell theory

c. cell, nucleus, cell theory, fluid mosaic model

d. cell, cell theory, nucleus, fluid mosaic model

3. Which of the following statement is false about Cell Theory Concept?

a. All living organisms are composed of cells and products of cells

b. All cells arise from pre-existing cells

c. all living organisms are composed of DNA and products of DNA

d. Concept of Omnis Cellula-e cellula

4. Which of the following is the delimiting structure of human check cell ?

a. cell wall

b. cell membrane

c. cytoplasm

d. endoplasmic reticulum

5. (a) A semi-fluid matrix called cytoplasm occupies the volume of the cell; (b) Ribosomes are non-membrane bound organelles; (c) The genetic material is basically naked; (d) Mesosomes are essentially infoldings of cell membrane. Which of the above statements are the characteristics feature of both prokaryotes and eukaryotes?

a. (a) and (c)

b. (a) , (b) and (c )

c. (a) and ( b)

d. (a), ( c ) and (d)

6. Match the organelles with their respective functions in order: Centrioles, Ribosomes, Golgi apparatus and Mitochondria

a. site for glycoproteins and glycolipids formation, site of protein synthesis, power   house of the cell, helps in cell division

b. helps in cell division, power house of the cell, site of protein synthesis , site for glycoproteins and glycolipids formation

c. power house of the cell, site for glycoproteins and glycolipids formation, site of protein synthesis, helps in cell division

d. helps in cell division, site of protein synthesis, site for glycoproteins and glycolipids formation, power house of the cell

7. The largest isolated single cell is the _____________

a. egg of an ostrich

b. human red blood cells

c. nerve cells

d. human white blood cells          1

8. Match the following with the suitable answer: List 1: [ (a). capsule, (b). mesosome, (c). flagella, (d). slime layer] List 2: [ (1). motility, (2). thick glycocalyx, (3). loose sheath, (4). infoldigs of cell membrane]

a. a2, b4, c3, d1

b. a1, b3, c2, d4

c. a4, b1, c2, d3

d. a2, b4, c1, d3

9. Name the organelles that are the characteristic feature of a typical plant cell but not in the animal cell:

a. centrioles, lysosomes, cell wall

b. large vacuoles, plasmids, cell wall

c. lysosomes, chloroplasts, cell wall

d. cell wall, plastids, large vacuoles

10. Fluid mosaic model of plasma membrane shows that:  (a). it is composed of lipids that are arranged in a bilayer; (b). the polar heads of the lipids towards the outer sides and the hydrophobic tails towards the inner part; (c). peripheral proteins of cell membrane lie on the surface of membrane; (d). integral proteins are partially or totally buried in the membrane.

a. (a) and (b)

b. (a), (b) and ( c)

c. (a), (b) and (d)

d. All of the above

11. Active transport across the plasma membrane can be defined as:

a. Movement of molecules across the membrane without any requirement of energy

b. Movement of water molecule by diffusion

c. Movement of molecules across the membrane against their concentration gradient

d. Movement of molecules from higher to lower concentration

12. Which of the following statements regarding SER is true? (a). Absence of ribosomes on the surface; (b). Presence of ribosomes on the surface; (c). Involved in protein synthesis and secretion; (d). Involved in synthesis of lipid

a. (a) and ( c)

b. (a) and (d)

c. (b) and (c)

d. (b) and (d)

13. _____________ are concentrically arranged near the nucleus with distinct convex cis and concave trans.

a. endoplasmic reticulum

b. Golgi cistern

c. Lysososmes

d. Vacuoles

14. Define the mitochondrial function:

a. Principally performs the functio of packaging materials to be delivered either to the intra-cellular targets or secreted outside the cell

b. Facilitates the transport of a number of ions and other materials against concentration gradients

c. Prodcution of cellular energy in the form of ATP

d. Responsible for trapping light energy

15. Match the plastids with their respective pigments: List 1: [Plastids: (a) Chloroplasts (b) Chromoplasts (c) Leucoplasts] List 2: [Pigments: (1) colourless (2) Chlorophyll (3) xanthophylls]

a. a3, b1, c2

b. a2, b1, c3

c. a2, b3, c1

d. a1, b3, c2