2131. Cell fractionation involves separation of various components of a cell by :

A. Electrochemical gradient
B. Hydrogen Ion gradient
C. Density gradient *
D. Both A and B

2132. Broth is a nutrient medium :

A. Semisolid
B. Liquid *
C. Solid
D. Gaseous

2133. Agar is gelatinous substance obtained from :

A. Marine and Algae *
B. Brown Algae
C. Blue green Algae
D. Green Algae

2134. Induction of root in callus required treatment of :

A. High Auxin and low cytokinin ratio *
B. Low Auxin and high ctyokinin ratio
C. Low Auxin and low cytokinin ratio
D. High Auxin and High cytokinin ratio

2135. The following method is used to measure tubidity in a suspension:

A. Chromatography
B. Spectrophotometry *
C. Electrophoresis
D. Micrometery

2136. The cell wall was discovered by:

A. Robert Hooke *
B. Robert Brown
C. Antony Van Leeuwenhoek
D. Galileo

2137. Cell wall of Neighboring cells are held together by an intercellular substance called :

A. Middle Lamella *
B. Primary wall
C. Secondary wall
D. Plosmodesmata

2138. Which one of the following is strongly optically active :

A. Middle lamella
B. Primary Wall
C. Secondary Wall *
D. Tetiary Wall

2139. Unit membrane model was proposed by :

A. Danielle and Daven
B. Singer and Nicolson
C. Robertson *
D. Gorter and Grendel

2140. Lipid Molecules in the membranes are the :

A. Glycolipids
B. Phospholipids *
C. Terpenoids
D. Glycoprotein