Class 10 Science - RAJASTHAN
Control and Coordination
The chapter 'Control and Coordination' in Class 10 Science explores how living organisms maintain homeostasis and respond to external and internal stimuli. For RBSE board exam aspirants, this chapter is crucial as it forms the foundation of human physiology and plant biology. You will study the nervous system, reflex actions, human brain structure, plant hormones (phytohormones) like auxins and gibberellins, and chemical coordination through endocrine glands. Understanding these mechanisms helps explain everyday phenomena like touching a hot pan and pulling your hand away, or how plants bend toward light. Scoring well here requires clear diagrams and precise terminology.
Start Learning FreeKey Concepts
Nervous System
The network of nerve cells (neurons) that transmits electrical impulses rapidly throughout the body to coordinate actions.
Reflex Action
A sudden, involuntary, and automatic response to a stimulus mediated by the spinal cord to protect the body from harm.
Human Brain
The central processing unit of the body, divided into the forebrain, midbrain, and hindbrain, each controlling specific functions like thinking, voluntary movements, and involuntary actions.
Plant Hormones (Phytohormones)
Chemical compounds like auxin, gibberellin, cytokinin, and abscisic acid that regulate plant growth, development, and responses to stimuli like light and gravity.
Endocrine System
A system of glands that secrete chemical messengers called hormones directly into the bloodstream to regulate long-term metabolic activities and growth.
Important Formulas
Board Exam Info
In the Rajasthan (RBSE) Class 10 Science board exam, this chapter typically carries around 5 to 7 marks. Common question types include objective multiple-choice questions, short-answer questions on hormone functions or reflex arcs, and diagram-based questions asking to label parts of the human brain or a neuron.
Frequently Asked Questions
What is the difference between a reflex action and walking?
A reflex action is an involuntary, automatic response controlled by the spinal cord, whereas walking is a voluntary action controlled by the cerebrum of the brain.
What are plant hormones and name two of them?
Plant hormones (phytohormones) are chemical substances that regulate growth and responses in plants. Two examples are Auxin and Gibberellin.
Why is the pituitary gland called the master gland?
The pituitary gland is called the master gland because it secretes hormones that control the activities of all other endocrine glands in the body.
Learn Control and Coordination with Your AI Tutor
10 different ways to study this chapter. Free for 3 chapters per day.
Lecture
Key Points
Interactive
Quiz
Flashcards