Life Processes Worksheet-2

Life Processes Worksheet-2


  1. Respiration and photosynthesis both require:

A. Green cells                                B. Sunlight

C. Cytochromes                            D. Organic fuel


  1. Rate of photosynthesis is independent on:

A. Light quality                             B. Light intensity

C. Duration of light                      D. All of these


  1. Which pigment is present universally in all green plants:

A. Chlorophyll a                            B. Chlorophyll b

C. Chlorophyll c                            D. Chlorophyll m


  1. Which of the following colours of light in the visible spectrum is the most effective in photosynthesis?

A. Red                 B. Green             C. Violet             D. Yellow


  1. In respiration, air passes through

A. Pharynx, nasal cavity, larynx, trachea, bronchi, bronchiole, lungs

B. Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, lungs

C. Larynx, nasal cavity, pharynx, trachea, lungs

D. Larynx, pharynx, trachea, lungs


  1. The exchange of gases in the alveoli of the lungs takes place by

A. Osmosis                                     B. Simple diffusion

C. Passive transport                     D. Active transport


  1. The exchange of gases (O2 and CO2) in a mammal takes place in

A. Trachea                                     B. Bronchi

C. Bronchioles                               D. Alveoli


  1. Which is the first part of the small intestine?

A. Ileum             B. Jejunum       C. Duodenum   D. Caecum


Answer Key:

  1. C
  2. D
  3. A
  4. A
  5. B
  6. B
  7. D
  8. C