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Botany Objective Questions and Answers for Competitive Exams | Page-3

(21) Flower less plants are termed as:
[A] Cryptogams
[B] Thallophytes
[C] Bryophytes
[D] Phanerogams

Comment

Answer: Option [A]
(22) Bio-diesel is mostly produced by:
[A] Liliaceae
[B] Malvaceae
[C] Myrtaceae
[D] Euphorbiaceae

Comment

Answer: Option [D]

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(23) The most abundant enzyme in the living world is
[A] DNAse
[B] Rubisco
[C] Zymase
[D] Invertase

Comment

Answer: Option [B]
(24) What is the impact of advancing glaciers on the rings of trees?
[A] They become concentric
[B] Their shape is distorted
[C] They become widely spaced
[D] They are immune to this change

Comment

Answer: Option [B]
(25) Insectivorous plants grow in soil deficient in
[A] Water
[B] Magnesium
[C] Nitrogen
[D] Calcium

Comment

Answer: Option [C]
(26) The red, orange and yellow colours of leaf is due to:
[A] Aldehydes
[B] Tannis
[C] Lignins
[D] Carotenoid

Comment

Answer: Option [D]
(27) Bio-magnification implies
[A] Food is magnified
[B] Light is magnified
[C] Toxic matters are magnified
[D] Living beings are magnified

Comment

Answer: Option [C]
(28) Which of the following is an insectivorous plant?
[A] Drosera
[B] Orobanche
[C] Rafflesia
[D] Balanophora

Comment

Answer: Option [A]
(29) Protein part of enzyme is known as
[A] Holoenyme
[B] Apoenzyme
[C] Isoenzyme
[D] All the above

Comment

Answer: Option [B]
(30) Entomology is the study of
[A] Fungi
[B] Fossils
[C] Insects
[D] Birds

Comment

Answer: Option [C]

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