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11th Biology Weekly Test - 1 ( Bio - Zoology - Neural Control and Coordination )

MABS Institution

11th Biology Weekly Test - 1 ( Bio - Zoology - Neural Control and Coordination )-Aug 2020

Time : 1.30 Hours

Part - A

Multiple Choice Question - Answer All Question

The rotation of the eye ball is the function of__________nerve.

facial
abducens
trochlear
trigeminal

_______________ is the coloured portion of the eye.

Cornea
Iris
Pupil
Sclera

How many pairs of Thoracic nerves do we have?

8
5
1
12

When the potential across the axon membrane Is more negative than the normal resting potential, the neuron is said to be in a state of

Depolarization
Hyperpolarization
Repolarization
Hypopolarization

Which of the following pairings is correct?

Sensory nerve - afferent
Motor nerve - afferent
Sensory nerve - ventral
Motor nerve - dorsal

Mechanoreceptors are seen in________

Tongue
Skin
Cochlea
Eye

The middle ear lies in the ___________ bone.

occipital
frontal
temporal
parietal

The middle ear lies in the________bone.

occipital
frontal
temporal
parietal

___________ are involved in olfactory reflexes and emotional responses to odour.

Hypothalamus
Epithalamus
Infundibulum
Mammillary bodies

___________is not related to inner ear.

Saccule
Utricle
Ossicle
Organ of corti

Part - B

Generic 2 - Answer All Question

Name the functional classes of neurons

Why is the blind spot called so?

What is the significance of vitamin A in vision?
What is eustachian tube?

What is a Synapse?

Part - C

Generic 3 - Answer All Question

Name the first five cranial nerves, their nature and their functions.

Name the chambers of the cochlea.

What is the significance of melanin?

The choroid plexus secretes cerebrospinal fluid. List the function of it.
At the end of repolarization, the nerve membrane gets hyperpolarized. Why?

Part - D

Generic 5 - Answer All Question

The sense of taste is considered to be the most pleasurable of all senses. Describe the structure of the receptor involved with a diagram.

Write a note on refractive errors of the eye.

How does the ear act as an organ of equilibrium?

How are reflex actions classified?
What is reflex action? Explain the Mechanism.

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