(a) Auxin
(b) Abscisic acid
(c) Gibberellin
(d) Cytokinin
162 Q) "Select the correct answer
I. Microtubules
II. Microfilaments
Which of the following is/are called the cytoskeleton of a cell?"
(a) Only I
(b) Only II
(c) Both I and II
(d) Neither I nor III
I. Iodine is necessary for the thyroid gland to make adrenaline.
II. Iodine deficiency leads to goitre in human beings.
III. Iodine is secreted by pancreas and helps in regulating cholesterol level.
Which of the statements given above is/are correct?"
(a)All of these
(b) I and II
(c) I and III
(d) Only II
164 Q) Hormone was discovered by
(a) Funk
(b) Starling
(c) Addison
(d) Banting
165 Q) Which of the following are the "amphibians" of plant kingdom?
(a) Thallophytes
(b) Gymnosperms
(c) Angiosperms
(d) Bryophytes
166 Q) The phyllodade commonly found in xerophytic plants is the modified
(a) stem
(b) roots
(c) leaf
(d) flower
167 Q) "Consider the following statements
I. Metamorphosis in insects is regulated.
II. It is a steroid hormone.
Which of the statements given above is/are correct about the Ecdysone hormone?"
(a) Only I
(b) Only II
(c) Both I and II
(d) Neither I nor II
168 Q) Nitrosomonas and Nitrobacter convert
(a) urea to nitrite
(b) ammonia to urea
(c)urea to ammonia
(d)ammonia to nitrate
169 Q) What would happen if human blood becomes acidic (LOW PH)?
(a) Oxygen-carring capacity of haemoglobin is increased
(b) Oxygen-carring capacity of haemoglobin is decreased
(c) RBC count increases
(d) RBC count decreases
170 Q) The Kingdom protista which consists of the both, simple unicellular and multicellular organisms was first enacted by
(a) Ernst Haeckel
(b) Charles Darwin
(c) Engler and Prantl
(d) Eichler
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