Cell biology and Biomolecules

 

Cell biology and Biomolecules

1. Who invented electron microscope?

a. Janssen

b. Edison

c. Knoll and Ruska

d. Landsteiner

2. Specific proteins responsible for the flow of materials and information into the cell are called

a. Membrane receptors

b. carrier proteins

c. integeral proteins

d. none of these

3. Omnis-cellula-e-cellula was given by

a. Virchow

b. Hooke

   c. Leeuwenhoek

   d. Robert Brown

4. Which of the following is responsible for the mechanical support, protein synthesis and enzyme transport

a. cell membrane

b. mitochondria

c. dictyosomes

d. endoplasmic reticulum

5. Genes present in the cytoplasm of eukaryotic cells are found in

a. mitochondria and inherited via egg cytoplasm

b. lysosomes and peroxisomes

c. Golgi bodies and smooth endoplasmic reticulum

d. Plastids inherited via male gametes

6. In which one the following would you expect to find glyoxysomes

a. Endosperm of wheat

b. endosperm of castor

c. Palisade cells in leaf

d. Root hairs

7. A quantosome is present in

a. Mitochondria

b. Chloroplast

c. Golgi bodies

d. ER

8. In mitochondria the enzyme cytochrome oxidase is present in

a. Outer mitochondrial membrane

b. inner mitochondrial membrane

c. Stroma

d. Grana

9. Which organelle is present in higher number in secretory cell

a. Mitochondria

b. Chloroplast

c. Nucleus

d. Dictyosomes

10. Major site for the synthesis of lipids

a. Rough ER

b. smooth ER

    c. Centriole

    d. Lysosome

 

11. Golgi complex plays a major role in.

a. post translational modification of proteins and glycosidation of lipids

b. translation of proteins

c. Transcription of proteins

d. Synthesis of lipid

12. Main arena of various types of activities of a cell is

a. Nucleus

b. Mitochondria

c. Cytoplasm

d. Chloroplast

13. The thylakoids in chloroplast are arranged in

a. regular rings

b. linear array

c. diagonal direction

d. stacked discs

14. Sequences of which of the following is used to know the phylogeny

a. mRNA

b. rRNA

c. tRNA

d. Hn RNA

15. Structures between two adjacent cells which is an effective transport pathway-

a. Plasmodesmata

b. Middle lamella

c. Secondary wall layer

d. Primary wall layer

16. In active transport carrier proteins are used, which use energy in the form of ATP to

a. transport molecules against concentration gradient of cell wall

b. transport molecules along concentration gradient of cell membrane

c. transport molecules against concentration gradient of cell membrane

d. transport molecules along concentration gradient of cell wall

17. The main organelle involved in modification and routing of newly synthesised protein to their destinations is

a. Mitochondria

b. Glyoxysomes

c. Spherosomes

d. Endoplasmic reticulum

18. Algae have cell wall made up of

a. Cellulose, galactans and mannans

b. Cellulose, chitin and glucan

c. Cellulose, Mannan and peptidoglycan

    d. Muramic acid and galactans