Yogurt is made from milk fermentation by:
Yogurt is made from milk fermentation by:
Lactic acid bacteria | |
Bacillus | |
Saccharomyces | |
Yeast |
Biology MCQS
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Most of the gaseous exchange in a plant leaf occurs through:
Most of the gaseous exchange in a plant leaf occurs through:
Cuticle | |
Stomata | |
General surface | |
Lenticels |
Which lobe of human brain is concerned with hearing and smell:
Which lobe of human brain is concerned with hearing and smell:
Parietal | |
Temporal | |
Frontal | |
Occipital |
Which cartilage is found in epiglottis and pinna:
Which cartilage is found in epiglottis and pinna:
Elastic | |
Hyaline | |
Fibrous | |
Collagen |
The appearance of drops of water on tips of leaves is called:
The appearance of drops of water on tips of leaves is called:
Osmosis | |
Guttation | |
Osmoregulation | |
Diffusion |
In how many days, rabbit's embryo develops into new offspring:
In how many days, rabbit's embryo develops into new offspring:
30 - 32 days | |
20 - 22 days | |
50 - 52 days | |
40 - 42 days |
Which drugs include aspirin:
Which drugs include aspirin:
Synthetic drugs | |
Drugs from plants | |
Addictive drugs | |
Drugs from bacteria |
The length of spinal cord is approximately centimeter:
The length of spinal cord is approximately centimeter:
20 | |
10 | |
40 | |
30 |
Who was first to propose the mechanism of evolution:
Who was first to propose the mechanism of evolution:
Buffon | |
Darwin | |
Abu Rayhan | |
Lamarck |
The number of chromosomes in fruity fly Drosophila:
The number of chromosomes in fruity fly Drosophila:
48 | |
26 | |
16 | |
8 |
Eukaryotes have pores per nucleus:
Eukaryotes have pores per nucleus:
30,000 | |
6 or 8 | |
3 or 4 | |
3000 |
Robert Brown reported the presence of:
Robert Brown reported the presence of:
Nucleus | |
Mitochondria | |
Ribosomes | |
lysosome |
Organelle found in both prokaryotic and eukaryotic cells:
Organelle found in both prokaryotic and eukaryotic cells:
lysosomes | |
Chloroplasts | |
Ribosomes | |
Mitochondria |
The size of prokaryotic ribosome is:
The size of prokaryotic ribosome is:
50S | |
30S | |
80S | |
70S |
The resolution of typical compound microscope:
The resolution of typical compound microscope:
3.0μm | |
2.0μm | |
1.0μm | |
4.0μm |
The resolution of naked eye is:
The resolution of naked eye is:
1.0mm | |
0.7mm | |
0.6mm | |
0.3mm |
The resolution of human naked eye is:
The resolution of human naked eye is:
1mm | |
1um | |
1nm | |
1cm |
The presence of nucleus in the cell was reported by:
The presence of nucleus in the cell was reported by:
Theodor Schwann | |
Robert Brown | |
Lorenz Oken | |
Schleiden |
The cells which transmit impulses are:
The cells which transmit impulses are:
Bone cells | |
Kidney cells | |
Blood cells | |
Nerve cells |
Resolution power of a typical compound microscope is:
Resolution power of a typical compound microscope is:
2-4 Angstrom | |
300X | |
1.0 um | |
2.0 um |