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Reaching the Age of Adolescence Science - Reaching the Age of Adolescence

Bihar Board (BSEB) - STD 8 - Science (BSEB - English Medium). 150 questions in this chapter.

Question types

Reaching the Age of Adolescence question types

150 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

150
Questions
7
Question groups
5
Question types
Sample Questions

Reaching the Age of Adolescence questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 2M.C.Q. [I MARKS]1 Mark
A doctor advised a person to take injection of insulin because:
  • A
    His blood pressure was high.
  • B
    His heart beat was high.
  • ✓
    His blood sugar was high.
  • D
    His thyroxine level in blood was high.

Answer: C.

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Q 3M.C.Q. [I MARKS]1 Mark
Adolescents should be careful about what they eat because Adolescents should be careful about what they eat because:
  • A
    Proper diet develops their brains.
  • ✓
    Proper diet is needed for the rapid growth taking place in their body.
  • C
    Adolescents feel hungry all the time.
  • D
    Taste buds are well developed in teenagers.

Answer: B.

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Q 4M.C.Q. [I MARKS]1 Mark
Which of the following is a mis-matched pair?
  • ✓
    Adrenaline: pituitary gland.
  • B
    Estrogen: ovary.
  • C
    Pancreas: insulin.
  • D
    Testosterone: testis.

Answer: A.

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Q 5M.C.Q. [I MARKS]1 Mark
The faulty functioning of an endocrine gland can make a person very short or very tall. This gland is:
  • A
    Thyroid.
  • ✓
    Pituitary.
  • C
    Adrenal.
  • D
    Pancreas.

Answer: B.

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Q 6Fill in the blanks: [1 M]1 Mark
Fill in the following blanks with suitable words:
Each normal body cell in humans contains $............$ pairs of chromosomes out of which $............$ pair is of sex chromosomes.
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Q 14questions in short. [2 marks ]2 Marks
It was observed that the tadpoles are not growing into adult frogs in a village pond. A scientist who was asked to find the reason for this concluded that the pond water did not contain sufficient amount of a mineral $P$ which could make a hormone $Q$. The hormone $Q$ can causes a phenomenon $R$ in tadpoles so that they become adult frogs.
$a.$ What are $(i)\ P\ (ii)\ Q$ and $(ii)\ R?$
$b.$ Name one human disease which can also be caused due to the deficiency of $P$ in the food and water.
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Q 27questions in details [4 marks ]4 Marks
What will be the sex of the child born:
$a.$ if $X$ chromosome carrying sperm fuses with an egg cell carrying $X$ chromosome?
$b.$ if $Y$ chromosome carrying sperm fertilizes an ovum containing $X$ chromosome?
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