Subject : Biology
Class: X
Time:45 mins
Total marks: 25
MCQ’S:
01 mark each
1). The gland is considered as Exocrine as well as Endocrine gland;
a). Pituitary gland
b).Thyroid gland
c). Gonads
d). Pancreas
2). The drug is derived from Opium;
a). Morphine
b). Aspirin
c). Nicotine
d). Alcohal
3). The nerve transmits impulses from eye to brain;
a). Motor nerve
b). Cranial nerve
c). Optic nerve
d). Associated nerve
4). The region where the impulse moves from one neuron to another is called;
a). Synapes
b). Axon
c). Muscle
d). Ventral root
5). The neuron or the nerve cells of the nervous system is considered as;
a). functional unit
b). Basic unit
c). Anatomical unit
d). Automatic unit
6). At the front of the brain, frontal lobes which regulates fine motor control
including movements invloved in;
a). Sight
b). Speech
c). Balancing
d). Hearing
7). In animals ,both nervous and chemical coordination systems, the stimulus
perceived by a special organ called;
a). Sex organ
b). Cardiac organ
c). Renal organ
d). Sensory organ
8). Many axon & even dendrites combine to form a single;
a). Secretion
b). Hormone
c). Nerve
d). Sheath
9). Each eye is located in a boney socket called;
a). Cavity
b).Orbit
c). Ceolum
d). Diaphragm
10). A malleus in the receptor is;
a). Fluid
b). A bone
c). Duct
d). Particle
CRQ’s
Q.1(a). Give the name and one of the reason of hereditary defect of sensory organ of
sight .
(2marks)
Q.1(b). Name the fluid present in inner ear which contains certain Calcareous
particles. Give the function of these particles & one of the cause of deafness.
(3 marks)
Q.2(a). The human brain is like a super computer performing variety of
activities. What is the role of fore-brain in human activities?
(2marks)
Q.2(b). The structural & functional unit of nerveous system is the neuron. Name
their types and state their functions.
(3marks)
Attempt any one from Q.3 &Q.4
Q.3 Give names & the functions of growth regulators which are responsible for
hormonious growth of plant.
(5 marks)
Either
Q.4 Most drugs have devasting effect on the health of addicted individuals.
Describe the effects of any five of them.
(5marks)