___________ component of cell wall has grreat affinity with water??
A. Lignin
B. Cellulose
C. Pectin
D. All of these
Category: Biology Mcqs
Which of the following statement about filicinae a group of tracheophytes is incorrect_________________??
A. They belong to sphenopsida
B. They are seedless and their leaves are called fronds
C. They live in shady and moist areas.
D. They show circinate vernation.
All of the following are elements that plants need in very small amounts except___________??
A. Iron
B. Hydrogen
C. Chlorine
D. Copper
Of the following which one is not an energy releasing process??
A. Glycolysis
B. Respiration
C. Photosynthesis
D. Kreb’s cycle
_________ give rise to macrophages, which destroy larger particles by phagocytosis.?
A. Nautrophils
B. Basophila
C. Monocyte
D. Lymphocyte
Midgut in cockroach is a short narrow tube called____________??
A. Hepatic caeca
B. Gizzard
C. Stomach
D. Rectum
Rigor mortis i.e, stiffening of body after death results from__________??
A. Accunulation of rigid proteins molecules in sarcoplam.
B. Unavailability of ATP, which is necessary to break the link between actin and myosin.
C. Decrease in body temperature after death.
D. Death of tissue due to unavailability of O2.
Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________??
A. Bacteria
B. Algae
C. Protenema
D. Cyanobacteria
95% of the cytoplasm of RBCs is____________??
A. Hemoglobin
B. Enzymes
C. Salts
D. Other proteins
Magnifying power of electron microscope as compared to eye is____________??
A. 500 X
B. 250000X
C. 500000X
D. 250X
