Excretory system of platyhlminthes consists of___________??
A. Nephridia
B. Flame cells
C. Malpighian tubules
D. Nephrons
Category: Biology Mcqs
Which of the following carbohydrate can not be hydrolysed__________________??
A. Monosaccharide
B. Oligosaccharide
C. Polysaccharide
D. None of these
Keto group is represented as___________??
A. CO
B. C-COO-C
C. HCOH
D. HOH
Microspore of a seed plant that contain male gametophyte including the gamete is called_______________??
A. Pollen grain
B. Ovule
C. Microgametophyte
D. Microsporangium
Percentage of proteins in cell membrane is____________??
A. 20-40%
B. 40-50%
C. 60-80%
D. 80-100%
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by________??
A. Molecular biologists
B. Microbiologists
C. Freshwater biologists
D. Social biologist
A substance which binds at the active site of the enzyme but does not result in the formation of the products is called________________??
A. Irreversible inhibitor
B. Reversible inhibitor
C. Competitive inhibitor
D. Non-competitive inhibitor
All of the follwing are blood clots except:___________??
A. Thrombus
B. Embolus
C. Atheroma
D. Hematoma
Astronauts may use which technique to grow fruits and vegetables ??
A. Tissue culture techniques
B. Cloning
C. Pasterisation
D. Hydroponic culture technique
___________ respiration is directly involved in the production of energy, necessary for all living activities??
A. Organismic
B. Cellular
C. Both of these
D. None of these
