Answer the following questions in 25 to 30 words each

Question 12 Marks

Explain the impact of the hyposecretion of any three hormones.

Answer

Parathyroxin: An individual lacks motivation and energy. He experiences weakness, muscle cramps, and spasms.
Cortin or cortisone: An individual feels very lazy, lacks sexual drive, and experiences loss of hunger and weight.
Androgen and testosterone: Males do not have a desire for sex and their voice remains childlike.

Question 22 Marks

Explain the impact of hypersecretion of any four hormones.

Answer

Parathyroxin: An individual experiences a feeling of nausea, vomiting sensation. He also feels sleepy and relaxed.
Cortin or cortisone: An individual experiences increased sexual drive. Females start looking like males.
Adrenalin and noradrenaline: An individual experiences increased heartbeat, blood pressure, and breathing rate.
Androgen and testosterone: An individual shows a tendency towards sexual behaviour. He feels very energetic and engages in aggressive behaviour.

Question 32 Marks

Why are we supposed to wear helmets while riding a bike?

Answer

If someone meets with an accident while riding a bike, the person falls back on his head.
Most of the time, his Medulla oblongata is damaged which will lead to instant death.
Hence, we are supposed to wear helmets while riding a bike.

Question 42 Marks

State any two functions of the brain.

Answer

The brain helps to adapt to the environment and tries to analyze, store and synthesize the information it receives.
The brain plays a crucial role in every aspect of our lives like decision making, emotional experience, and social interactions.

Question 52 Marks

Why do we get different reactions to every situation?

Answer

When a neural message passes from end buttons to the dendrite of another neuron, it has to cross the chemical gap between two neurons (synapse).
As neurons are not directly connected to each other, we don’t have fixed reactions to every situation.

Question 62 Marks

Explain the classification of the somatic nervous system.

Answer

The somatic nervous system is divided into sensory and motor systems of the body.
It consists of sensory nerves (afferent nerves) and motor nerves (efferent nerves). Sensory nerves send messages from the body to the brain and motor nerves send messages from the brain to the body.

Psychology Answer the following questions in 25 to 30 words each