CBSE Questions for Class 8 Biology Reaching The Age Of Adolescence Quiz 4 - MCQExams.com

Which of the following diseases is a person suffering from if they have a big and bulging throat?
  • Goitre
  • Diabetes
  • Malaria
  • Common cold
Fill in the blank:
_______________ gland is attached to the brain.
  • Pituitary
  • Adrenal
  • Thyroid
  • Pancreas
State whether the given statement is True or False:
If the sperm contributes a Ychromosome to the egg (ovum) at fertilisation, the zygote would develop into a male child.
  • True
  • False
Apart from simulating the testes and ovaries for secretion of hormones, the pituitary gland is also responsible for the secretion of
  • Thyroxine
  • Growth Hormone
  • Adrenaline
  • None of the above
The hormones secreted by the____________ stimulate testes and ovaries to produce their hormones.
  • Adrenal
  • Pituitary
  • Thyroid
  • Pancreas

A person suffers from _________ when their pancreas does not produce the hormone__________ in sufficient quantities.
  • goitre, thyroxine
  • stunted growth, growth hormone
  • anxiety and stress, adrenaline
  • diabetes, insulin
State whether the given statement is True or False:
The process of metamorphosis is controlled by thyroxine in insects.
  • True
  • False

State whether the given statement is True or False:

If people do not have enough iodine in their diet, they will get goitre due to lack of thyroxine.
  • True
  • False
State whether the given statement is True or False:
Thyroid and adrenals secrete their hormones when they receive orders from
the pituitary through its hormones.
  • True
  • False
Thyroxine production is dependant on
  • Calcium
  • Zinc
  • Iodine
  • Carbon

Fill in the blank:

Metamorphosis in insects is controlled by ____________ hormones.
  • Insect
  • Pituitary
  • Adrenal
  • None of the above
The drastic change that occurs during the life cycle of a frog when it changes from larva to an adult is termed as
  • Metamorphosis
  • Adulting
  • Puberty
  • None of the above
State whether the given statement is True or False:
Frogs lack thyroid glands.
  • True
  • False
State whether the given statement is True or False:
The importance of iodised salt is that it is a good source of iodine which regulates the hormone thyroxine.
  • True
  • False
Fill in the blank:
In a frog, the process of metmorphosis is controlled by thyroxine, the hormone produced by____________.
  • Thyroid
  • Adrenal
  • Testes
  • None of the above
Fill in the blanks:
In our country, the legal age for marriage is ____ years for girls and ____ years for boys.
  • 21, 18
  • 16, 18
  • 18, 21
  • 25, 27
State whether the given statement is True or False:
It is a myth that a girl should not be allowed to work in the kitchen during
menstruation.
  • True
  • False
Fill in the blank:
___________ is a balanced food in itself.
  • Roti
  • Milk
  • Ghee
  • Jaggery
State whether the given statement is True or False:
It is okay for adolescents to take drugs if prescribed by doctors.
  • True
  • False

State whether the given statement is True or False:

To maintain good personal hygiene, It is more necessary for teenagers to take a bath every day because of the increased activity of sweat glands. 
  • True
  • False
State whether the given statement is True or False:
The mother is responsible for the sex of her child.
  • True
  • False
State whether the given statement is true or false:
AIDS can also be transmitted to an infant from the infected mother through her milk.
  • True
  • False
AIDS is a sexually transmitted disease caused by HIV, a _________.
  • Bacteria
  • Virus
  • Fungi
  • Protozoan
State whether the given statement is True or False:
Goitre is caused by excess secretion of insulin by the pancreas.
  • True
  • False
State whether the given statement is True or False:
Green leafy vegetables are bad for health.
  • True
  • False
Fill in the blank:
For infants, _____________________ provides all the nourishment that they need.
  • Meat
  • Goat's milk
  • Mother's milk
  • Fish
A girl is $$9$$ years old and $$120$$ cm tall. At the end of the growth period she is likely to be how tall?

454996_c06450339b0f4846b2d80b589e31b4c2.png
  • $$150$$cm
  • $$120$$ cm
  • $$148$$ cm
  • $$81$$ cm
Young boys at puberty start growing facial hairs. This is an example of:
  • Secondary sexual character
  • Appearance of primitive characters
  • Metamorphosis
  • Protective colouration
A boy is 12 years old and 130 cm tall. At the end of his growth period, his height is likely to be __________.

454994_c4916ac66eac41dda1d15aeae89e3eb7.png
  • 150 cm
  • 154.7 cm
  • 145 cm
  • 148.5 cm
Which of the following is required for change of the form from tadpole to adult?
  • Sodium
  • Iron
  • Iodine
  • Magnesium
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