Gaseous Exchange MCQch10,11,12p

Student’s Name:____________Admission No.______Roll No._____Section:______
Paper: Biology      Class: 10                      Time Allowed:    20 mins                          Marks: 12 

Checked by:_______________ Rechecked by:_____________ Sign Invigilator:_____________

Q1. Circle the correct answer.  (12)

1.Cones are sensitive to__________
a) White light     b) Bright light     c) Dim light     d) None of them
2.Pea shaped gland attached to hypothalamus is:
a) Adrenal gland     b) Parathyroid     c) Pituitary     d) Thyroid
3.Dust particle in inspired air is?
a) Variable     b) Saturated     c) Both a & b     d) None of them
4.The smallest bone of human body is_______
a) stapes     b) incus      c) malleus      d) vertebra
5.To carry urine from the kidney to the bladder is a function of?
a) ureter      b) urethra      c) a & b      d) none of these
6.The primary chemical stimulus for breathing in the concentration of_____ in blood?
a) carbon dioxide      b) oxygen      c) nitrogen      d) hydrogen
7.Where does the gaseous exchange occur in humans?
a) Pharynx      b) Trachea      c) Bronchi      d) Alveoli
8.Some xerophytes plants store water in _________ cells?
a) Sclerenchyma     b) Parenchyma      c) Root      d) None of them
9.Secretion of rubber plant is called?
a) gums      b) mucilage      c) latex      d) resins
10.Which mineral is required for the production of Thyroxin?
a) Cl       b) F      c) Br      d) I
11.Normal human breathing rate is?
a) 12 – 15 times per minute  b) 15 – 20 times per minute  c) 16 – 20 times per minute  d) 18 – 20 times per minute
12.Which fibers conduct impulse away from cell body?
a) dendrites      b) neuron      c) nerve      d) axons

Please follow and like us:
error