Nervous System

Q.

Distinguish between cranial and spinal nerves.

Q. What are the essential requirements for photosynthesis?

1. Hydrogen, water & sunlight
2. Carbon dioxide, water & sunlight
3. Carbon dioxide, oxygen & water
4. Oxygen, water & soil

Q. During the respiration in animals, the exhaled air contains percentage of carbon dioxide than inhaled air.

1. more
2. less
3. same

Q. The table below shows the differences between inhaled air and exhaled air:


Answer the following questions with respect to exhaled air:

1. Why has its oxygen content decreased?
2. Why is there no change in the percentage of nitrogen?

Q. Capillaries unite together to form _____.

1. arteries
2. ventricles
3. atria
4. veins

Q. The autonomic nervous system is divided into the system which prepares the body for emergencies and the system, which relaxes the body.

1. somatic nervous
2. parasympathetic
3. sympathetic
4. peripheral

Q.

How is pyruvate used in human cells when oxygen is available?

Q. The table below shows the differences between inhaled air and exhaled air:


Answer the following questions with respect to exhaled air:

1. Why has its oxygen content decreased?
2. Why is there no change in the percentage of nitrogen?

Q. Cerebellum mostly controls voluntary actions.

1. True
2. False

Q. Identify the parts of the hindbrain.

1. Pons
2. Cerebellum
3. Cerebrum
4. A & B

Q. Living organisms must maintain a constant internal environment.

1. True
2. False

Q. Identify the action that is not controlled by the autonomic nervous system.

1. Writing
2. Heart beat
3. Urination
4. Digestion

Q. The possible reason for evolution of reflex action in higher animals is:

1. Multicellular organisms are more complex in design.
2. Spinal cord has more efficiency than brain
3. Thinking process of brain is not fast enough.
4. All sense organs are not connected to brain.

Q. ATP is the energy currency of the cell.

1. True
2. False

Q. Match the organisms to number of chambers present in their heart.

1. 
2. Four
3. 
4. Three
5. 
6. Two

Q. _______ is a part of the hindbrain.

1. Cerebellum
2. Hypothalamus
3. Spinal cord
4. Corpus callosum

Q. Observe the given apparatus carefully showing an activity performed to compare the carbon dioxide content of inhaled and exhaled air.What would be the observation for T1 and T2 test tubes and itscorrect explanation? [(+) indicates milky colouration in limewater]
$T_1$ $T_2$ Explanation

1. +++ ++ $C{O}_2$ content is little higher in inhaled air
2. ++++ + $C{O}_2$ content is considerably higher in inhaled air
3. + ++++ $C{O}_2$ content is considerably higher in exhaled air
4. ++ ++ $C{O}_2$ content is same in both inhaled and exhaled air

Q. Find the word from the passage which means 'sleep'.

Q. The nervous system is divided into nervous system consisting of the brain and the spinal cord and the nervous system consisting of neural network.

1. central
2. external
3. internal
4. peripheral

Q. Which of the following organism does not respire through lungs?

1. Frog
2. Dog
3. Whale
4. Leech

Q. Match the following

1. Sensory neuron
2. Motor neuron
3. Originates in brain
4. Spinal origin

Q. Complete the missing links of anaerobic respiration in our muscle cells.
$\underrightarrow{AbsenceofOxygen}$ + Energy

1. Carbon dioxide
2. Lactic acid
3. Glucose
4. Water

Q.

_____ pairs of cranial nerves and ______ pairs of spinal nerves are present in the human body.

1. 12, 31

2. 11, 33

3. 10, 13

4. 23, 46

Q. system of the autonomic nervous system is activated during emergency situations.

1. Sympathetic
2. Parasympathetic
3. Central