Biology Questions: Paper - 6

Biology Model Question Paper - 6

1.

The sugar present in milk is _______.
(A) Sucrose
(B) Fructose
(C) Lactose
(D) Glucose

Answer: (C)

2.

The space between the plasma membrane and the cell wall of a plasmolyzed cell surrounded by a hypertonic solution is occupied by the
(A) hypotonic solution
(B) isotonic solution
(C) hypertonic solution
(D) water

Answer:  (C)

3.

The single horned Rhinoceros is protected at _______.
(A) Kaziranga National Park
(B) Kahna National Park
(C) Rajiv Gandhi National Park
(D) Anashi National Park

Answer: (A)

4.

The number of ATP produced when a molecule of glucose undergoes fermentation is
(A) 4
(B) 36
(C) 2
(D) 38

Answer:  (C)

5.

The offspring produced from a marriage have only O or A blood groups. Of the genotypes given below, the possible genotypes of the parents would be
(A) I^OI^O and I^OI^O
(B) I^AI^A and I^OI^O
(C) I^AI^O and I^OI^O
(D) I^AI^A and I^AI^O

Answer: (C)

6.

The part of the brain where the centre for hunger and thirst is located is
(A) Cerebrum
(B) Hypothalamus
(C) Cerebellum
(D) Medulla Oblongata

Answer: (B)

7.

The species, though insignificant in number, determine the existence of many other species in a given ecosystem. Such species is known as
(A) Keystone species
(B) Sacred species
(C) Endemic species
(D) Extinct species

Answer: (A)

8.

The scientific name of the moth which produce tasar is
(A) Bombyx mori
(B) Antheraea mylitta
(C) Antheraea assamensis
(D) Philosomia ricini

Answer: (B)

9.

The rosette habit of cabbage can be changed by application of
(A) IAA
(B) GA
(C) ABA
(D) Ethaphon

Answer:  (B)

10.

The respiratory quotient during cellular respiration would depend on
(A) the nature of the substrate
(B) the amount of carbon dioxide released
(C) the amount of oxygen utilised
(D) the nature of enzymes involved

Answer: (A)

11.

The reflex arc, which is made of two neurones is known as
(A) Monosynaptic reflex arc
(B) Disynaptic reflex arc
(C) Polysynaptic refles arc
(D) Asynaptic reflex arc

Answer: (A)

12.

The presence of corollary corona, sagittate anthers and dumb-bell shaped stigma are the
characteristic features of _______.
(A) Hibiscus rosa-sinensis
(B) Musa paradisiaca
(C) Ravenala madagascariensis
(D) Catheranthus roseus

Answer: (D)

13.

The name of the pacemaker of the heart is
(A) Lymph node
(B) S.A. node
(C) Juxtaglumerular apparatus
(D) Semilunar valve

Answer: (B)

14.

The name of Smt. Thimmakka is associated with the
(A) planting and conservation of avenue trees
(B) agitations against hydroelectric project
(C) ‘Appiko’ movement
(D) conservationof fauna and flora of the western ghats

Answer:  (A)

15.

The main difference between Gram positive and Gram negative bacteria is
(A) Cell membrane
(B) Cell wall
(C) Ribosome
(D) Mitochondria

Answer: (B)