Cellular Respiration

Cellular Respiration

The chemical reactions occur inside the cell. It is initiated in the cytoplasm and is completed inside the mitochondria. Inside the mitochondria respiratory enzymes are present. These respiratory enzymes bring about the oxidation reactions and produce energy in the form of ATP. This is cellular or internal respiration.

Breathing or external respiration

Is different in different organisms. The breathing organs may be skin, gills or lungs. The breathing organs may be absent as in lower plants and animals. In these organisms only internal or cellular respiration is present. This is more or less of the same nature in all the organisms.

Cellular Respiration

Respiration is a catabolic process in which exchange of gases occurs, viz., oxygen and carbon di oxide, between the cells and the outside environment.

Respiration is of two types

• Aerobic respiration
• Anaerobic respiration

The energy released is stored in the form of ATP to carry out biological functions required for the survival of the living beings.

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