random

substance P is not good for health because it raises the cholesterol level in the blood in the form of low-density lipoprotein (LDL). What is substance P?

• butter

• olive oil

• fish oil

which of the following elements is not found in nucleic acid?

• phosphorus

• nitrogen

• sulphur

• hydrogen

enzyme activity can be slowed down or stopped by enzyme inhibitors. Which of the following is an enzyme inhibitor?

• magnesium ion

• zinc

• vitamin B

• Mercury

X can make some enzymes work more efficiently. What is X?

• SUBSTRATE

• PRODUCT

• INHIBITOR

• COFACTOR

WHICH OF THE FOLLOWING IS IMPORTANCE OF MITOSIS?

• Development of cancerous cells

• crossing over

• embryo development

• genetic variation

aerobic respiration begins with the breakdown of glucose by enzymes. What is the name of this process?

• hydrolysis

• condensation

• fermentation

• glycolysis

where does fermentation occur in a cell?

• cytoplasm

• mitochondrion

• nucleus

• lysosome

which of the following is the respiratory structure of frog?

• trachea

• gills

• lungs

• alveolus

which of the following is an effector?

• brain

• glands

• nerve impulse

which of the following is an example of artificial passive immunity?

• antiserum

• vaccine

• mother's milk

• own antibodies