81. Select,which assertion is false.
A. Chloroplast and mitochondria both possess internal variation.Thylakoid lumen is not covered by thylakoid membrane.
B. Chloroplast and mitochondria both possess DNA.
C. Chloroplast and mitochondria both possess external and internal membrane.
D. Normally chloroplast is larger than mitochondria
Answer : Option C
82. In plant cell vacuole is _______ .
A. Membrane bound structure which stores various substance and excrete them.
B. Without membranous structure.
C. Without membranous structure which stores protein and lipid
D. With membranous structure which stores protein and lipid.
Answer : Option A
83. Middle lamella is made up of which substance?
A. Calcium pectate
B. Hemicellulose
C. Muramic acid
D. Phosphoglyceride
Answer : Option A
84. In higher plant stroma of chloroplast possesses...
A. Enzyme for dark reaction.
B. Chlorophyll
C. Ribosomes
D. Light reaction related enzyme
Answer : Option A
85. Microfilaments are ________ .
A. Structure connects cytoplasm of two near by cells
B. Locomotive structure
C. Structure joints nucleus and cytoplasm
D. Lignified layers between two cells.
Answer : Option A
86. The subunits of prokaryotic ribosomes are ________ .
87. In which phase the chromosomes appear clear.
88. The plasma membrane is made up of ________ .
A. Protein and lipid
B. Only lipid
C. Carbohydrate and lipid
D. Carbohydrate and protein
Answer : Option A
89. Smooth endoplasmic recticulum is a synthesis site of which substance?
90. In the following which sentance is false?
A. Lysosome possesses double layer structure.
B. Lysosome is a suicidal bag.
C. Lysosome digests all macromolecules.
D. Lysosome possesses hydrolase enzyme.
Answer : Option A