Class 11 Biology Quiz

Main Functions of Body Systems

• The primary function of the respiratory system is gas exchange, specifically taking in oxygen and expelling carbon dioxide.
• The circulatory system’s main function is to transport blood, nutrients, hormones, and waste products throughout the body.
• An organ system consists of a group of organs that work together to perform complex functions; examples include the digestive system and the nervous system.

Photosynthesis

• Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy.
• During photosynthesis, carbon dioxide and water are used to produce glucose and oxygen, facilitated by sunlight and chlorophyll.

Function of the Nervous System

• The nervous system is responsible for coordinating and regulating bodily functions by transmitting signals between different parts of the body.
• It processes sensory information, controls motor responses, and is crucial for memory, learning, and emotions.

Branches of Biology

• The five main branches of biology include:
  • Botany: the study of plants.
  • Zoology: the study of animals.
  • Microbiology: the study of microorganisms.
  • Ecology: the study of ecosystems and interactions between organisms and their environment.
  • Genetics: the study of heredity and variation in organisms.

Test your knowledge on the primary functions of the circulatory and respiratory systems, as well as identifying examples of organ systems in the human body. Challenge yourself with this quiz on Class 11 Biology!