XII TH Biology Test 2 For Practice
XII TH Biology
Test 2 For
Practice
Prof. Dr.Sadhana Nikam
Vice Principal RJ College
M.Sc B.Ed,PGDDE.Ph.D
Section I A
Q. Select and
write the correct answer.
(Ans indicate by *)
1. In
soil water available
for absorption by
root is ----------
a. gravitational water
*b. Capillary water
c. hygroscopic water
d. combined water
2. Water
absorption takes place
through ---------
a. lateral
roots b. root cap
*c. Root
hair d. primary root
3. Which is employed for
artificial ripening of
banana fruits ------
a.
Auxin *b. Ethylene
c. Cytokinin d. Gibberellin
4. The gaseous growth hormone
is
a. Cytokinin *b.
Ethylene
c. ABA d. Auxins
5. ------ is a
sound producing organ.
*a. Larynx b. Pharynx
c. Tonsils
d. Trachea
6. Diapedesis is
performed by
a.
erythrocytes b. thrombocytes
c. adipocytes *d.leucocytes
7.-------------- is a
neurotransmitter.
a. ADH b. Acetyl Co A
*c.
Acetyl choline d. Inositol
8. ----------is in
direct contact of
brain.
a.
Cranium b. Duramater
c.
Arachnoid *d. Piamater
9.Elephantiasis is
caused by ------
*a. W.bancrofti b.P.
vivax
c.
Bedbug d. Elephant
10.Confirmatory test
used for detecting
HIV infection is
a. ELISA *b.
Western blot
c. Widal
test d. Eastern blot
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