The infoldings in mitochondria are known as
cristae
matrix
cisternae
thylakoids
A cell organelle that is exceptionally rich in hydrolytic enzymes is
ribosome
endoplasmic reticulum
Iysosome
mitochondria
Which of the following is responsible for the origin of Iysosome ?
chloroplast
golgibody.
Golgi apparatus is absent in
higher plant
yeast
bacteria and blue-green algae
liver cells
What is common between chloroplasts, chromoplasts and leucoplasts ?
presence of pigments
possession of thylakoids and grana
storage of starch, proteins and lipids
ability to multiply by a fission -like process
Robert Hooke thought about the cells that
something similar to veins and arteries of animals for conducting fluid
smallest structural unit
smallest functional unit
unit of heredity
Number of protofilament in microtubule is
13
12
5
10
Nucleic acid occurs in _____________ .
Golgi body
Iysosomes
cytoplasm
mitochondria and chloroplast
Plasma membrane helps in
transportation of only water in and out of cell
protein synthesis
osmoregulation
nucleic acid synthesis
Which is not true about prokaryotes ?
DNA is complexed with histones
Well developed nucleus absent
Mesosome present
Mitrochondria absent
