Class 10 Life Processes CBSE Questions & Answers

Class 10 · Life Processes

This is online test 03 for CBSE class 10 Science Life Processes.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Chlorophyll, xanthophylls and Carotene are
  • A
    gases
  • B
    pigments
    Correct
  • C
    hormones
  • D
    enzymes
2
Gizzard is the part of the gut of
  • A
    flatworm
  • B
    grasshopper
    Correct
  • C
    roundworm
  • D
    man
3
Which of the following does not respire through lungs?
  • A
    tadpole
    Correct
  • B
    Duck
  • C
    frog
  • D
    whale
4
The energy rich compound produced through respiration is
  • A
    Pyruvic acid
  • B
    ATP
    Correct
  • C
    AMP
  • D
    ADP
5
The final product of glycolsis is
  • A
    Acetyl COA
  • B
    Malic acid
  • C
    Pyruvic acid
    Correct
  • D
    glucose
6
A healthy person can inhale up to …………… litres of air in one breath
  • A
    2 litres
  • B
    3 litres
    Correct
  • C
    1 litres
  • D
    4 litres
7
“Respiration is a largely involuntary and partly voluntary process” , The above statement is
  • A
    \({\rm{1}}00\% \) true
    Correct
  • B
    \({\rm{1}}00\% \) false
  • C
    Partly false
  • D
    Partly true
8
Which is correct?
  • A
    Heart is surrounded by percardium
    Correct
  • B
    The wall of ventricle is thinner than that of atrium
  • C
    mammalian RBC is nucleated
  • D
    Vertebrate heart is dorsally placed
9
Bile is secreted by-
  • A
    Gall bladder.
  • B
    Pancreas
  • C
    Liver
    Correct
  • D
    Duodenum
10
Statement A : The pressure of blood inside the artery during ventricular systole is called systolic pressure. , Statement B : Animals like amphibians or many reptiles have three chambered heart
  • A
    statement A and B are true
  • B
    Statement A is true, B is false
  • C
    Neither statement A nor statement B is true
  • D
    statement B is true, A is false
    Correct
11
Statement A : If diffusion were to move oxygen in our body, It is estimated that it would take 3 years for a molecule of oxygen to get to our toes from lungs , Statement B : In a healthy adult the initial filtrate in the kidneys is about 180 litres daily
  • A
    statement B is true, A is false
  • B
    statement A is true, B is false
  • C
    Neither statement A nor statement B is true
  • D
    statement A and B both are true
    Correct
12
Nitrogenous wastes are formed from the breakdown of
  • A
    amino acids
    Correct
  • B
    fat
  • C
    Ammonia
  • D
    water
13
which is correct about human kidney ?
  • A
    It has 100 nephrons
  • B
    Each kidney has 2 ureters
  • C
    It is cylindrical
  • D
    It is bean shaped
    Correct
14
The rate of photosynthesis is maximum in
  • A
    Green and red light
  • B
    blue and yellow light
  • C
    Green and yellow light
  • D
    blue and red light
    Correct
15
Trachea do not collapse when these is hot much air because they are-
  • A
    Having cartilaginous rings
    Correct
  • B
    Supported by larynx.
  • C
    Thick and muscular
  • D
    Have valves