Tamil Nadu (English Medium) Plus 1 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Streptomycin is obtained from :

(A) Streptomyces griseus	(B) S. aureofaciens
(C) S. venezuelae	(D) S. ramosus

Question-2
Ulothrix releases zoospore during :

(A) Evening	(B) Morning
(C) Night	(D) Noon

Question-3
In pteridophytes, phloem is without :

(A) Sieve cells	(B) Sieve tubes
(C) Companion cells	(D) Bast fibres

Question-4
Fungal spores produced externally at the top of hyphae are :

(A) Conidia	(B) Oidia
(C) Aplanospore	(D) Sporangiophore

Question-5
Huxley is the father of.

(A) Classical taxonomy	(B) Artifical taxonomy
(C) Neo - taxonomy	(D) Adansonian taxonomy

Question-6
Which of the following plant materials, is an efficient water imbibant ?

(A) Lignin	(B) Pectin
(C) Agar	(D) Cellulose

Question-7
New systematics introduced by Sir Julian Huxley is also called.

(A) Phenetics	(B) Cladistics
(C) Biosystematics	(D) Numerical taxonomy

Question-8
Lichen is the pioneer vegetation on which succession ?

(A) Hydrosere	(B) Lithosere
(C) Psammosere	(D) Xerosere

Question-9
Assertion The scientific name Malus malus is illegitimate.

(A) Both Assertion and Reason are true and Reason is the correct explanation of Assertion	(B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
(C) Assertion is true but reason is false	(D) Assertion is false but Reason

Question-10
Mannitol is the stored food in :

(A) Chara	(B) Porphyra
(C) Fucus	(D) Gracillaria

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Plus 1 Biology Science

Tamil Nadu (English Medium)

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