Which is true about co-factor:
Which is true about co-factor:
Help and facilitate enzyme activity | |
Composed of proteins | |
Increase activation energy | |
Break hydrogen bond in protein |
Biology MCQS
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Which one is not the result of mitosis in an organism:
Which one is not the result of mitosis in an organism:
Development and growth | |
Become half no. of chromosomes | |
Cells replacement | |
Regeneration |
The membrane-bounded organelles that only occur in the cells of plant and algae are:
The membrane-bounded organelles that only occur in the cells of plant and algae are:
Mitochondria | |
Endoplasmic reticulum | |
Ribosome | |
Plastid |
Cells were first described by a British scientist:
Cells were first described by a British scientist:
Louis Pasture | |
Robert Brown | |
Rudolf Virchow | |
Robert Hooke |
Prions are composed of:
Prions are composed of:
Carbohydrates | |
Minerals | |
Proteins | |
Fats |
The most basic step of biological method is:
The most basic step of biological method is:
Deduction | |
Observation | |
Hypothesis | |
Experimentation |
The element which makes 18% of the total mass of living organism is:
The element which makes 18% of the total mass of living organism is:
Hydrogen | |
Nitrogen | |
Carbon | |
Oxygen |
Which element regulates the opening and closing of stomata
Which element regulates the opening and closing of stomata
Sulphur | |
Phosphorus | |
Potassium | |
Calcium |
The study of internal structure is called
The study of internal structure is called
Morphology | |
Anatomy | |
Physiology | |
Histology |
Animals get energy during the process of
Animals get energy during the process of
Evaporation | |
Respiration | |
Transpiration | |
Photosynthesis |
Who proposed the induced fit model of enzyme action
Who proposed the induced fit model of enzyme action
Daniel Koshland | |
Ibn-e-Nafees | |
Emil Fischer | |
Jabar bin Hayyan |
Which type of cells never enter in G0 phase
Which type of cells never enter in G0 phase
Liver cells | |
Epithelial cells | |
Kidney cells | |
Nerve cells |
National animal of Pakistan is
National animal of Pakistan is
Lion | |
Marco Polo sheep | |
Tiger | |
Markhor |
Which enzyme is found in saliva
Which enzyme is found in saliva
Pepsin | |
Lipase | |
Protease | |
Amylase |
Where urea is formed
Where urea is formed
In Gall bladder | |
In Liver | |
In Pancreas | |
In Stomach |
Female mosquitoes need the blood of ____ for the maturation of their eggs.
Female mosquitoes need the blood of ____ for the maturation of their eggs.
Fish | |
Reptiles | |
Mammals | |
Amphibians |
How many molecules of ATP are formed in cellular respiration?
How many molecules of ATP are formed in cellular respiration?
28 | |
36 | |
40 | |
32 |
Examples of multi-cellular organization are
Examples of multi-cellular organization are
Frog and mustard | |
Amoeba and Euglena | |
Frog and Euglena | |
Mustard and Euglena |
A photograph taken through a microscope is called
A photograph taken through a microscope is called
Micrograph | |
Photograph | |
Tonograph | |
Cardiograph |
The weight of human kidney is nearly grams:
The weight of human kidney is nearly grams:
120 | |
115 | |
110 | |
127 |