Question : Honey that has a high concentration of sugar does not decay because

Option 1: bacteria cannot survive in an active state as it is deprived of oxygen

Option 2: it contains natural antioxidant that prevents bacterial attack

Option 3: bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out

Option 4: None of these

Question : Which protein protects the epithelial cells from damage?

Option 1: Elastin

Option 2: Actin

Option 3: Keratin

Option 4: Collagen

Question : Bacterial and fungal enzymes degrade detritus into simpler inorganic substances. This process is called ______.

Option 1: catabolism

Option 2: fragmentation

Option 3: leaching

Option 4: decomposition

Question : The main function of centriole is:

Option 1: to help plant cells with multiplication

Option 2: to help cell division in animal cells

Option 3: to maintain rigidity in plant cell

Option 4: to maintain mineral composition in bacterial cell

Question : What is a brine solution?

Option 1: Excess salt + water

Option 2: Silver

Option 3: Excess ethanol + water

Option 4: Excess starch + water