On this Page we have given West Bengal Class 8 English Medium Science Solution Chapter 9 Endocrine System and Adolescence Question and Answer for our Students of West bengal Class 8 English Medium. Hope this following Question Answer will help our Students.
West Bengal Class 8 | Science | Endocrine System and Adolescence
Q.(1) MCQ
1.) The role of hormones play in our body is
a) Controlling physical changes only
b) Controlling emotional feelings only
c) Controlling both physical and emotional changes
d) Controlling metabolic processes
Answer: Controlling both physical and emotional changes
2.) ______ coordination is demonstrated when the brain sends a signal to the hand to shoo away a mosquito
a) Nervous coordination
b) Chemical coordination
c) Emotional coordination
d) Metabolic coordination
Answer: Nervous coordination
3.) What happens to hormones after they have completed their function
A) They are destroyed
b) They circulate in the blood indefinitely
c) They are stored in the receptor cells
d) They are recycled by the body
Answer: They are destroyed
4.) Identify the problems that can arise if the hormone level in the blood is below its normal level
A) Increased protein utilization and fat metabolism
b) Decreased growth and body-building processes
c) Enhanced emotional stability and coordination
d) Improved immune response and blood pressure regulation
Answer: Decreased growth and body-building processes
5.) The main difference between exocrine glands and endocrine glands is
A) Exocrine glands secrete hormones, while endocrine glands secrete enzymes.
b) Exocrine glands have ducts for secretion, while endocrine glands do not have ducts.
c) Exocrine glands are located in the brain, while endocrine glands are located in the reproductive system.
D) Exocrine glands control physiological functions, while endocrine glands control metabolic processes.
Answer: Exocrine glands have ducts for secretion, while endocrine glands do not have ducts.
6.) It’s the gland that is found at the base of our brain and has two lobes
a) Thyroid gland
b) Adrenal gland
c) Pituitary gland
d) Pancreatic gland
Answer: Pituitary gland
7.) A hormone that is responsible for promoting the growth of muscles and bones
A) Vasopressin
b) Thyroid stimulating hormone
c) Somatotropic hormone
d) Gonadotropic hormone
Answer: Somatotropic hormone
8.)The potential dangers of hyper-secretion and hypo-secretion of somatotropic hormone during childhood
A) Hyper-secretion can lead to increased bone length, while hypo-secretion can result in stunted growth.
b) Hyper-secretion can cause stunted growth, while hypo-secretion can lead to increased bone length.
c) Both hyper-secretion and hypo-secretion result in stunted growth.
D) Both hyper-secretion and hypo-secretion lead to increased bone length.
Answer: Hyper-secretion can lead to increased bone length, while hypo-secretion can result in stunted growth.
9.) In which gland do both endocrine and exocrine cells coexist
A) Thyroid gland
b) Adrenal gland
c) Pancreatic gland
d) Pituitary gland
Answer: Pancreatic gland
10.) ______ gland is responsible for controlling the growth of the thyroid gland
A) Thyroid gland
b) Pancreatic gland
c) Pituitary gland
d) Adrenal gland
Answer: Pituitary gland
11.) Thyroxine hormone has one of the following functions
a) Increasing heart rate and energy production
b) Stimulating insulin secretion
c) Controlling blood pressure and muscle growth
d) Promoting growth of the thyroid gland
Answer: Increasing heart rate and energy production
12.) Identify the symptoms of hyper-secretion of thyroxine hormone
A) Swelling of the neck and bulging of the eyes
b) Rough skin and increased blood pressure
c) Weak muscles and swollen abdomen
d) Excessive hunger and tiredness
Answer: Swelling of the neck and bulging of the eyes
13.) ______ gland is responsible for secreting insulin and glucagon
a) Thyroid gland
b) Adrenal gland
c) Pancreatic gland
d) Pituitary gland
Answer: Pancreatic gland
14.) What are the effects of hypo-secretion of insulin?
a) Increased glucose levels and frequent hunger
b) Reduced heart and kidney function
c) Swollen abdomen and weak muscles
d) Rough skin and increased infection susceptibility
Answer: Increased glucose levels and frequent hunger
15.) Adrenal glands are present over which organ
a) lungs
b) kidneys
c) liver
d) Pancreas
Answer: kidneys
16.) If adrenal hormone is released in our body it will
a) Increases respiratory rate, controls body temperature, and regulates heart function
b) Stimulates insulin secretion and glucose metabolism
c) Promotes growth of muscles and bones
d) Regulates thyroid gland function and metabolism
Answer: increases respiratory rate, controls body temperature, and regulates heart function
17.) If cortisol is released in large amount in our body it will lead to
A) Rounded and swollen face (Moon face), rough and pale facial skin
b) Increased heart rate and blood pressure
c) Enhanced digestion and muscle strength
d) Improved wound healing and hair growth
Answer: Rounded and swollen face (Moon face), rough and pale facial skin
18.) It’s the main function of adrenaline hormone during running
A) Regulating mental conditions like fear and flight responses
b) Controlling urine production and digestion
c) Providing energy for physical exertion
d) Promoting wound healing and muscle growth
Answer: Providing energy for physical exertion
19.) Cortisol hormone is released one of the following hormone
a) Thyroid gland
b) Pancreatic gland
c) Pituitary gland
d) Adrenal gland
Answer: Adrenal gland
20.) The reproductive glands in the female and male body are respectively called
A) Ovary and testis
b) Ovary and prostate gland
c) Uterus and testis
d) Uterus and prostate gland
Answer: Ovary and testis
21.) Its the hormone is secreted from the testis in the male body
A) Estrogen
b) Progesterone
c) Testosterone
d) Thyroxine
Answer: Testosterone
22.) During adolescence this hormone is responsible for the development of moustache and beard
A) Estrogen
b) Progesterone
c) Testosterone
d) Thyroxine
Answer: Testosterone
23.) What are the changes brought by estrogen hormone in the female body?
A) Increased muscle strength and deepening of voice
b) Growth of bones and muscles, fat deposition below the skin
c) Development of facial hair and hoarse voice
d) Swelling of glands and increased body temperature
Answer: Growth of bones and muscles, fat deposition below the skin
24.) ______ is responsible for the swelling of glands, bulging eyes, and increased body temperature
A) Estrogen
b) Progesterone
c) Testosterone
d) Thyroxine
Answer: Thyroxine
25.) An age range of ______is considered as adolescence according to the World Health Organization (WHO
a) 5-10 years
b) 10-19 years
c) 20-30 years
d) 30-40 years
Answer: 10-19 years
26.) What are the changes that occur in the human body during adolescence
a) Psychological changes
b) Physical changes
c) Both physical and psychological changes
d) No changes occur
Answer: Both physical and psychological changes
27.) An endocrine gland which releases hormones that contribute to rapid physical changes during adolescence
A) Thyroid gland
b) Pituitary gland
c) Pancreatic gland
d) Adrenal gland
Answer: Pituitary gland
28.) A quite common occurrence during adolescence period is
A) Growth of facial hair in boys
b) Development of pimples on the face
c) Drooping ears in hares
d) Emotional disturbances
Answer: Development of pimples on the face
29.) Some of the behavioral changes that take place in a 13-14 year old child are
A) Short-tempered and prone to bursting into tears
b) Risky behavior and engaging in self-destructive acts
c) Both a) and b)
d) None of the above
Answer: Both a) and b)
30.) One of the following is not considered a core generic life skill by WHO
A) Self-awareness
b) Decision making
c) Interpersonal communication
d) Financial management
Answer: Financial management
31.) Which life skill involves participating in creative activities like song, dance, painting, and drama
A) Self-awareness
b) Critical thinking
c) Creative thinking
d) Interpersonal communication
Answer: Creative thinking
32.) The importance of interpersonal relationship in life skill education is
A) Developing self-awareness
b) Enhancing critical thinking abilities
c) Building strong connections with others
d) Managing stress and emotions
Answer: Building strong connections with others
33.) _______ skill focuses on treating others’ problems as one’s own and understanding their feelings
A) Decision making
b) Interpersonal relationship
c) Empathy
d) Stress management
Answer: Empathy
34.) Stress management in life skill education has one of the following purpose
A) Developing self-awareness
b) Enhancing critical thinking abilities
c) Building strong connections with others
d) Identifying and managing mental pressures
Answer: Identifying and managing mental pressures
35.) Emotion management in life skill education involve one of the following
A) Developing self-awareness
b) Solving interpersonal problems
c) Identifying and managing mental pressures
d) Becoming aware of one’s own feelings and expressing them properly
Answer: Becoming aware of one’s own feelings and expressing them properly
Q.(2) Short answer questions.
(1) What do you mean by hormone ?
→Hormone is a chemical substance which is responsible for maintaining various functions in our body.
(2) Give the example of two functions carried by hormone ?
→
- Blood pressure
- Urine production
- Growth
(3) Mention two types of coordination ?
→
- Nervous coordination
- Hormonal coordination
(4) What do you mean by receptor ?
→ Receptor is the organ where hormone is produced when it needs.
(5) Explain exocrine gland?
→Chemical secreted from gland passes from one place to another through a duct. This type of gland called as exocrine gland.
(6) Explain endocrine gland ?
→Chemical secreted by a gland directly poured into the blood stream called as endocrine gland.
(7) Mention two examples of exocrine gland ?
→
- Saliva from salivary gland
- Gastric juice from gastric gland.
(8) Give two examples of endocrine gland ?
→
- Pituitary gland
- Thyroid gland.
(9) What do you mean by mixed gland ?
→The gland which perform the function of both endocrine gland and exocrine gland known as mixed gland.
(10) Give one example of mixed gland ?
→ Pancreatic gland
(11) Name two lobes of pituitary gland ?
→
- Anterior pituitary
- Posterior pituitary
(12) Name two hormones secreted by pituitary gland ?
→
- Somatotropic Hormone
- Thyroid Stimulating Hormone
(13) Mention another name of somatotropic hormone ?
→Somatotropic hormone is also called as growth hormone.
(14) What is the role of thyroid stimulating hormone ?
→ It controls the growth of thyroid gland. It isstimulating the thyroid gland to produce thyroxine hormone.
(15) What is the location of thyroid gland in our body ?
→ Thyroid gland is situated just below the larynx , on either side of the trachea.
(16) Write the name of the hormone secreted by thyroid gland ?
→ Thyroxine
(17) What is the role of thyroxine in our body ?
→
- It increases the heart rate
- It helps to produce energy.
- It helps to increase the use of oxygen in the cells of our body.
(18) Write the effects of hypo-secretion of thyroxine ?
→ Growth of the child becomes restricted and abdomen becomes swollen.Muscles become weak and tongue hangs out.
(19) Name the hormone secreted by pancreatic gland?
→ Insulin and glucagon
(20) What is the role of insulin ?
→ It helps the glucose to enter the cell from the blood. It also helps to break glucose to form energy.
(21) Why insulin hormone is called as Anti diabetic hormone ?
→ Insulin is called as Anti diabetic hormone as it inhibits the production of glucose from the proteins and fats.
(22) What happens when there is hypo-secretion of insulin ?
→ Hypo-secretion of insulin increases the level of glucose.
(23) What are the effects of hypo-secretion of insulin ?
→
- The functional power of heart kidney and is reduced.
- Infection tendency increases.
(24) Write the location of adrenal gland in our body ?
→Adrenal glands are situated about its kidney in triangular shape.
(25) Which hormone is a secreted by adrenal gland ?
→
- Adrenaline hormone
- Cortisol
(26) Mention another name of adrenaline hormone ?
→ Emergency hormone
(27) What is the function of adrenaline hormone ?
→
- It increases our respiratory rate.
- It controls systole and diastole of our heart.
- It controls urine production
- It controls body temperature.
(28) Write the effects of hyper secretion of cortisol ?
→ Face becomes rounded and swollen. This face is called as moon face. Facial skin becomes rough and pale.
(29) What are the effects of hypo-secretion of cortisol ?
→ Poor digestion and weakness in the muscles.
(30) Write the name of reproductive gland in female body ?
→ Ovary
(31) Write the name of the reproductive gland in male body ?
→ Testis
(32) Mention the name of hormones secreted by ovary ?
→Estrogen and progesterone
(33) Mention the name of hormone secreted by testis ?
→ Testosterone
(34) Explain the effects of testosterone during adolescence ?
→
- Moustache or beard emerge due to this hormone.
- Bones and muscles become stronger
- Body becomes muscular
- Voice breaks and becomes hoarse.
(35) List down some emotions due to adolescence ?
→
- Fear
- Crying
- Happiness
- Depression
- Sorrow
- Offended
Also See: Chapter 1 Question Answer