Q. Which one of the following plant hormones includes flowering in long-day plants?
1) Auxin
2) Cytokinin
3) Ethylene
4) Gibberellin
Q. Usually when tomatoes are plucked they are green. They become red later because the
1) Chloroplast disappears and new chromoplasr arises
2) Chloroplast gets converted into chromoplast
3) Chromoplast gets converted into chloroplast
4) None of the above
Q. The basic building blocks of proteins are
1) Amino acids
2) DNA
3) Nitrogenous bases
4) RNA
Q. Which of the following carry genetic information?
1) Carbohydrates
2) Fatty acids
3) Nucleic acids
4) Proteins
Q. Lipase, an enzyme, break up
1) Fats into fatty acids and glycerine
2) Insulin into fructose
3) Maltose into glucose
4) Peptones into amino acids
Q. Genetic mutation occurs in
1) DNA
2) RNA
3) Chromosomes
4) Ribosomes
Q. Bile secreted by the liver gets stored in the
1) Gall blader
2) Duodenum canal
3) Liver itself
4) Spleen
Q. Excretory organs of insects are
1) Nephridia
2) Malpighian tubules
3) Green glands
4) All of the above
Q. Which one of the following are colonial in habit?
1) Termites
2) Bed bugs
3) Aphids
4) Locusts
Q. The food in onion is stored in the form of
1) Cellulose
2) Protein
3) Starch
4) Sugar
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