CBSE
Multiple Choice QuestionsWhich cell organelle is covered by only one unit membrane ?
Nucleus
Plastids
Mitochondria
Lysosome
Active transport occurs :
against concentration gradient and requires ATP
against concentration gradient and does not require ATP
along concentration gradient but require ATP
along concentration gradient but does not require ATP
Which of the following is a single membranous structure?
Lysosome
Nucleus
Mitochondria
Chloroplast
Chromosomes in a bacterial cell can be 1 to 3 in number and
are not circular or linear
can be circular as well as linear within the same cell
are always circular
are always linear
Passive food ingestion in Amoeba is known as :
import
invagination
circumfluence
circumvallation
Principle protein of cillia and flagella is :
globulin
fibrin
flagellin
tubulin
Fluid mosaic model exhibits amphipathy because of
glycoproteins
phospholipids
lipids
glycolipids
The controlling centre of cell is
nucleus
nucleolus
mitochondria
ribosome
Energy currency (reservoir) of the cells is:
AMP
ATP
RNA
DNA
A prokaryotic cell lacks
true nucleus
nuclear membrane
membrane bound organelles
All of the above
