Factors Affecting Respiration

Factors Affecting Respiration

• The external factors include temperature, CO₂ concentration, O₂ concentration, minerals and light.
• Temperature affects respiration largely by affecting the activity of enzymes. Activity of enzymes may be reduced/increased by temperature fluctuations, or even the enzymes may be destroyed at very high temperatures.
• Higher concentration of CO₂ and the absence of O₂ adversely affect the rate of respiration (except in anaerobic respiration).
• Light is generally believed to control respiration by raising the temperature of an organism. However, in several plants, light-induced respiration (photorespiration) has been found to occur.
• Certain minerals are required for the optimum functioning of enzymes. Deficiency of these may hamper respiration.
• The internal factors include kind and age of tissue, water content of the cell; as well as the amount and type of substrate available.

NCERT SOLUTION FOR CLASS-7 SCIENCE (Science for grade-7 NCERT solutions)

NCERT Solution for Class 7 Science Chapter 1 - Nutrition in Plants

NCERT Solution for Class 7 Science Chapter 2 - Nutrition in Animals

NCERT Solution for Class 7 Science Chapter 3 - Fibre to Fabric

NCERT Solution for Class 7 Science Chapter 4 - Heat

NCERT Solution for Class 7 Science Chapter 5 - Acids, Bases and Salts

NCERT Solution for Class 7 Science Chapter 6 - Physical and Chemical Changes

NCERT Solution for Class 7 Science Chapter 7 - Weather, Climate and Adaptations of Animals to Climate

NCERT Solution for Class 7 Science Chapter 8 - Winds, Storms and Cyclones

NCERT Solution for Class 7 Science Chapter 9 – Soil

NCERT Solution for Class 7 Science Chapter 10 - Respiration in Organisms

NCERT Solution for Class 7 Science Chapter 11 - Transportation in Animals and Plants

NCERT Solution for Class 7 Science Chapter 12 - Reproduction in Plants

NCERT Solution for Class 7 Science Chapter 13 - Motion and Time

NCERT Solution for Class 7 Science Chapter 14 - Electric Current and Its Effects

NCERT Solution for Class 7 Science Chapter 15 – Light

NCERT Solution for Class 7 Science Chapter 16 - Water: A Precious Resource

NCERT Solution for Class 7 Science Chapter 17 - Forests: Our Lifeline

NCERT Solution for Class 7 Science Chapter 18 - Wastewater Story