Answer all questions,
1. Which part of the neuron receives signals from other neurons?
a. Axon
b. Myelin sheath
c. Dendrites
d. Synapse
2. What is the primary function of the endocrine system?
a. To process sensory information
b. To transmit nerve impulses
c. To produce hormones
d. To regulate blood pressure
3. What is the role of the optic nerve in the visual system?
a. To focus light on the retina
b. To transmit visual information to the brain
c. To adjust the size of the pupil
d. To detect color
4. Which gland is often referred to as the "master gland" of the endocrine system?
a. Thyroid gland
b. Adrenal gland
c. Pituitary gland
d. Pineal gland
5. How does the nervous system communicate messages throughout the body?
a. Through chemical signals only
b. Through electrical impulses
c. Through blood circulation
d. Through lymphatic fluid
6. What hormone is primarily responsible for regulating metabolism?
a. Insulin
b. Cortisol
c. Thyroxine
d. Adrenaline
7. In a reflex arc, which type of neuron carries impulses to the brain or spinal cord?
a. Motor neuron
b. Sensory neuron
c. Interneuron
d. Efferent neuron
8. How do hormones travel through the body?
a. Through nerve fibers
b. Through the bloodstream
c. Through muscle tissues
d. Through the lymphatic system
9. Which of the following is a function of the parasympathetic nervous system?
a. Increasing heart rate
b. Dilating pupils
c. Stimulating digestion
d. Releasing adrenaline
10. What is the role of rods in the retina?
a. Detecting color
b. Providing peripheral vision
c. Detecting gray shades.
d. Focusing images
Answer all the questions.
1. Fill in the blanks.
1. The plant hormone ____________________ is responsible for promoting cell
elongation.
2. ____________________ is the growth movement of plants in response to light.
3. ____________________ helps plants determine the direction of gravity, aiding root
growth.
4. Auxin concentration is higher on the _____________________ side of the plant,
causing it to bend towards the light.
5. In gravitropism, the redistribution of ____________________ causes roots to grow
downwards.
2. Fill in the blanks.
Term (s) Function
Neurotransmitter
Sensory neuron
Glucagon
Auxin
Gravitropism
3. Draw, label and explain the synapse in the human nervous system.
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
