Q 1 – Which one of the following does not have valves ?
(a) heart
(b) arteries
(c) capillaries
(d) veins
(c) capillaries
Q 2 – In a synapse chemical signal is transmitted from ______.
A) from a dendrite of one neuron to the axonal end of other neurons
B) axon to the cell body of the same neuron
C) cell body to the axonal end of the same neuron
D) axonal end of one neuron to the dendrite of another neuron
D) axonal end of one neuron to the dendrite of another neuron
Q 3 – Which of the following is accomplished in a plant by utilizing the energy stored in ATP ?
(a) transport of food
(b) transport of water and minerals
(c) transport of oxygen
(d) transport of water, minerals, and food
(a) transport of food
Q 4 – Cretinism results due to :
A) Excess secretion of growth hormone
B) under secretion of thyroxin
C) excess secretion of adrenaline
D) under secretion of growth hormone
B) under secretion of thyroxin
Q 5 – Which is not true about the brain:
A) there are lobes in the forebrain
B) Centres of hearing, smell, memory are located in the forebrain
C) Involuntary actions are controlled by the medulla in hindbrain
D) Cerebellum does not control postures
D) Cerebellum does not control postures
Q 6 – One of the following does not have a nucleus. This one is :
(a) red blood cell
(b) white blood cell
(c) guard cell
(d) epidermal cell
(a) red blood cell
Q 7 – The gap between two neurons is called a:
(a) dendrite
(b) synapse
(c) axon
(d) impulse
(b) synapse
Q 8 – In autotrophs, water is transported through :
(a) root hair
(b) phloem
(c) stomata
(d) xylem
(d) xylem
Q 9 – Which of the following pairs of brain part and its function are not correctly matched?
A) Pons -consciousness
B) cerebrum-memory and intelligence
C) cerebellum -balancing and posture
D) medulla -involuntary actions
A) Pons -consciousness
Q 10 – Select the mismatched pairs :
A) Adrenaline-pituitary gland
B) Testosterone -testes
C) Estrogen -ovary
D) Thyroxine -thyroid gland
A) Adrenaline-pituitary gland
Q 11 – The brain is responsible for:
(a) thinking
(b) regulating the heartbeat
(c) balancing the body
(d) all of the above
(d) all of the above
Q 12 – The rhythm of sleep in our body is controlled by __.
A) Thymus gland
B) Pineal gland
C) ACTH
D) ADH
D) ADH
Q 13 – The wave of expansion of an artery when blood is forced into it is called :
(a) Flow
(b) heartbeat
(c) pulse
(d) ticking
(c) pulse
Q 14 – Dramatic changes in body features are associated with puberty that are
mainly because of the secretion of _____.
A) estrogen from testes and testosterone from ovary
B) estrogen from adrenal gland and testosterone from pituitary
C) estrogen from ovary and testosterone from testes
D) estrogen from pituitary and testosterone from thyroid
C) estrogen from ovary and testosterone from testes
Q 15 – An animal having double circulation in a three-chambered heart is :
(a) Fish
(b) snake
(c) deer
(d) sparrow
(b) snake
Q 16 – Which of the following is a plant hormone:
(i) insulin
(b) thyroxin
(c) estrogen
(d) cytokinin
(d) cytokinin
Q 17 – Which of the following is not an involuntary action?
A) salivation
B) chewing
C) heartbeat
D) vomiting
B) chewing
Q 18 – Which of the following carries substances upwards as well as downwards in a plant ?
(a) xylem
(b) companion cells
(c) phloem
(d) tracheids
(c) phloem
Q 19 – The nervous system is divided into the ____and the ___ ; the former consists of ____ and the latter consists of _____.
A) CNS, PNS, the brain and spinal cord; nerves around the body
B) CNS, PNS, the nerves around the body; the ventricles
C) ANS, PNS, the nerves around the body; the ventricles
D) ANS, CNS, the nerves around the body; the brain and spinal cord
A) CNS, PNS, the brain and spinal cord; nerves around the body
Q 20 – Water absorption through roots can be increased by keeping the potted plants :
(a) in the shade
(b) in dim light
(c) under the fan
(d) covered with a polythene bag
(c) under the fan
Q 21 – ____ covers most of the axon, it is important because it ___
A) Synovial fluid, facilitates electrical conduction of nerve cells
B) mylein, facilitates the release of neurotransmitter
C) CSF, increases conduction of impulse
D) membrane potential, increases conduction of impulse
B) mylein, facilitates the release of neurotransmitter
Q 22 – A blood vessel which carries blood back to the heart is :
(a) artery
(b) vein
(c) capillary
(d) platelet
(b) vein
Q 23 – Which endocrine gland is called master gland:
(a) pituitary
(b) adrenal
(c) thyroid
(d) pancreas
(a) pituitary
Q 24 – Blood is pumped from the heart to the entire body by the :
(a) lungs
(b) ventricles
(c) atria
(d) nerves
(b) ventricles
Q 25 – Adrenaline, noradrenaline, serotonin are called ?
A) Amines
B) neurotransmitters
C) nero actors
D) none
B) neurotransmitters
Q 26 – What is the role of schwann cells in neuron ?
A) Thermal insulation of neural axons
B) limit the speed of action potential
C) Enhance the speed of impulse
D) All
A) Thermal insulation of neural axons
Q 27 – The blood leaving the tissues becomes richer in :
(a) carbon dioxide
(b) water
(c) haemoglobin
(d) oxygen
(a) carbon dioxide
Q 28 – The skeletal muscles are controlled by which nervous system?
A) somatic N.S
B) Autonomic N.S
C) glial cells
D) all
B) Autonomic N.S
Q 29 – In which of the following vertebrate groups/groups, the heart does not pump oxygenated blood to different parts of the body ?
(a) Pisces and amphibians
(b) amphibians and reptiles
(c) amphibians only
(d) Pisces only
(d) Pisces only
Q 30 – Cartisons is secreted by:
(a) pancreatic gland
(b) adrenal gland
(c) thyroid gland
(d) pituitary gland
(b) adrenal gland
(b) adrenal gland
Q 31 – Deficiency of which hormone causes diabetes?
(a) insulin
(b) gastrin
(c) relaxin
(d) extrogen
(a) insulin
Q 32 – Hormone insulin is produced by:
(a) pineal gland
(b) thyroid gland
(c) pancreas
(d) pituitary gland
(c) pancreas
Q 33 – Female sex hormone is:
(a) estrogen
(b) androgen
(c) insulin
(d) adrenalin
(a) estrogen
Q 34 – Groups of neurons that make hundreds of synaptic connections with each
other and work together are ______.
A) ganglia
B) neuronal pool
C) Autonomic system
D) somatic system
A) ganglia
Q 35 – Name the harmone which is utilized to produce seedless fruit without fertilization:
(a) ethylene
(b) gibberellins
(c) auxins
(d) none of there
(c) auxins
Q 36 – Insulin is secreted by:
(a) stomach
(b) liver
(c) pancreas
(d) kidney
(c) pancreas
Q 37 – Damage of cerebellum will most affect the career of :
A) architect
B) teacher
C) librarian
D) athlete
D) athlete
Q 38 – Which is a plant harmone in following:
(a) Insulin
(b) Thyroxin
(c) Astrogen
(d) Cytokinin
(c) Astrogen
Q 39 – In case of an emergency which structure becomes very active:
(a) adrenal medulla
(b) adrenal cortex
(c) thyroid gland
(d) pancreas
(a) adrenal medulla
Q 40 – Heartbeat is increased by:
(a) thyroxine
(b) adrenalin
(c) gastrin
(d) glucagon
(b) adrenalin
Q 41 – Hyposecretion of insulin causes:
(a) hypocalcemia
(b) diabetes mellitus
(c) hypercalcemia
(d) irregular growth
(b) diabetes mellitus
Q 42 – Growth hormone is produced in:
(a) gonads
(b) thyroid
(c) pituitary
(d) adrenal
(c) pituitary
Q 43 – Which gland is both exocrine and endocrine ?
(a) liver
(b) thyroid
(c) pituitary
(d) pancreas
(d) pancreas
Q 44 – Progesterone is secreted by:
(a) testes
(b) thyroid
(c) pituitary
(d) ovary
(d) ovary
Q 45 – Glycogen is converted into glucose by:
(a) glucose kinase
(b) glucagon
(c) insulin
(d) calcitonin
(b) glucagon
Q 46 – Oxytocin is secreted by:
(a) males
(b) both males and females
(c) females
(d) only by pregnant women
(c) females
Q 47 – Islets of Langerhans are found in:
(a) spleen
(b) pancreas
(c) liver
(d) pituitary gland.
(b) pancreas
Q 48 –The use of iodised salt is recommanded to prevent:
(a) diabetes
(b) tetany
(c) goitre
(d) hypertension
(c) goitre
Q 49 – Goitre is due to the hyposecretion of:
(a) thyroxine
(b) calcitonin
(c) prolaction
(d) insulin
(a) thyroxine
Q 50 – Hormone secreted by the testes is:
(a) testosterone
(b) progesterone
(c) insulin
(d) T.S.H
(a) testosterone
Q 51 – Junction between two neurons is:
(a) callus
(b) synapse
(c) monosystem
(d) homeostasis
(b) synapse
Q 52 – Master gland of the body is:
(a) thyroid
(b) adrenal
(c) penial
(d) pituitary
(d) pituitary
Q 53 – Unit of impulse transmission is:
(a) neuron
(b) nervous system
(c) brain
(d) spinal cord
(a) neuron
Q 54 – The largest part of the brain is:
(a) cerebrum
(b) cerebellum
(c) medulla
(d) mid-brain
(a) cerebrum
Q 55 – Part of the brain which controls respiration and heart beat is:
(a) medulla
(b) cerebellum
(c) diencephalon
(d) cerebrum
(a) medulla
Q 56 – In human body, which part of the brain controls the feeling of pleasure, sex and anger:
(a) cerebrum
(b) diencephalon
(c) cerebellum
(d) medulla oblongata
(b) diencephalon
Q 57 – Example of reflex action is:
(a) heart beat
(b) blood circulation
(c) sneezing
(d) all these
(c) sneezing
Q 58 – Phototropism is regulated by:
(a) auxin
(b) gibberellin
(c) cytokinin
(d) ethylene
(a) auxin
Q 59 – Germination of seed is regulated by:
(a) auxin
(b) gibberellin
(c) cytokinin
(d) ethylene
(b) gibberellins
Q 60 – Fruit ripening is regulated by:
(a) auxin
(b) gibberellin
(c) cytokinin
(d) ethylene
(d) ethylene