General Science Class 10

The chemicals released from one cell and carried to signal some distant cell through blood are :

1. Neurotransmitters
2. Enzymes
3. Hormones
4. All of these

The part of brain involved in reasoning is :

1. Fore brain
2. Cerebrum
3. Cortex
4. Frontal lobe

The part of brain involved in balance and precision in movements is:

1. Cerebrum
2. Cerebellum
3. Thalamus
4. Medulla oblongata

Vital functions for survival of animals are regulated by :

1. CNS
2. PNS
3. Somatic sub-division
4. Autonomic sub-division

The shortest path of reflex action consists of :

1. 1 neuron
2. 2 neurons
3. 3 neurons
4. Many neurons

The type of lens in our eye is :

1. Convex
2. Concave
3. Both a & b
4. None of these

The type of coordination exhibited by Plants :

1. Nervous coordination
2. Chemical coordination
3. Mechanical coordination
4. Both a & b

The automatic process of altering focus to get sharper image of near object is :

1. Vision
2. Accommodation
3. Focus
4. All of these

The vitamin necessary for proper vision is :

1. Vitamin A
2. Vitamin B
3. Vitamin C
4. Vitamin D

A colour blind person cannot see :

1. Anything
2. Red
3. White
4. Black