Control and Coordination
What is the primary function of the nervous system in animals?
Define a synapse. What is its significance?
What is a reflex action? Give one daily life example.
What are plant hormones? Name any two plant hormones.
What is phototropism? How does it occur in plants?
Name the master gland of the human endocrine system and give its location.
What is the role of insulin in the human body? What disease is caused by its deficiency?
Name the hormone responsible for the 'fight or flight' response in humans. Where is it produced?
Explain the structure and functional role of the human brain. Describe the main parts of the brain and their specific functions in coordinating body activities.
Discuss the endocrine system in human beings. Name any four major endocrine glands, their location in the body, the hormones they secrete, and the primary functions of those hormones.
What is plant tropism? Explain any four major types of tropic movements in plants with appropriate examples, highlighting the role of plant hormones (phytohormones) in directional growth.
Explain the mechanism of a reflex action with the help of a well-described reflex arc. Also, differentiate clearly between voluntary, involuntary, and reflex actions.
What is a reflex action? Describe the pathway of a reflex arc with a neat, labeled conceptual explanation, and explain why reflex arcs evolved in animals.
What are plant hormones (phytohormones)? List the five major types of plant hormones, classify them into growth promoters and growth inhibitors, and explain at least two major physiological functions of each.