According to Boyle's law, the product of pressure and volume is a constant. Hence,

• if volume of lungs is increased, the pressure decreases disproportionately

• if volume of lungs is increased, the pressure remains the same

• if volume of lungs is increased, the pressure decreases proportionately

• if volume of lungs is increased, the pressure also increases proportionately

Ivan Pavlov performed experiments on

• origin of life

• cardiac reflexes

• simple reflexes

• conditioned reflexes

Marasmus in children is caused by deficiency of

• protein

• fats

• vitamins

• carbohydrates

14.

Bilirubin and biliverdin are

• enzymes

• bile salts

• bile pigments

• None of these

When the organic acid is oxidised in respiration, the value of R.Q. becomes

• zero

• one

• less than one

• more than one

Which of the following genotypes does not produce a sugar polymer on the surface of the RBCs?

• I^AI^A

• I^Ai

• ii

• I^AI^B

ABO blood grouping is controlled by gene I which has three alleles and show co-dominance. There are six genotypes. How many phenotypes in all are possible?

• Three

• Six

• Five

• Four

Auxin was first named by

• C Darwin

• FW Went

• Alexopolus

• KV Thimann

Which of the following inhibits O₂ release in light phase?

• Zeatin

• PMA

• DCMU

• None of these

The nitrifying bacteria that convert the ammonia to nitrates are

• Nitrosomonas and Nitrobacter

• Azotobacter

• Rhizobium sp.

• Thiobacillus denitrificans