Digestive System - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of human digestion, enzymes, and nutrient absorption.
Skin: Structure and Function - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of the integumentary system, thermoregulation, and skin layers.
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Practice questions testing deep understanding of bones, joints, muscles, and biomechanics.
Q1. When you want to bend your arm at the elbow, your biceps muscle contracts. However, to straighten your arm back out, the biceps cannot simply "push" the arm straight. Explain how the skeletal muscles work in pairs to accomplish this movement.
Q2. Assertion (A): Synovial fluid is present in freely movable joints like the knee and shoulder. Reason (R): Synovial fluid acts as a biological lubricant, preventing the cartilages on the ends of the bones from grinding against each other and wearing out due to friction.
/Class-9/Competency-Based-Questions/5_4_Skeleton_Movement_and_Locomotion_CBQ.mdxDigestive System - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of human digestion, enzymes, and nutrient absorption.
Skin: Structure and Function - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of the integumentary system, thermoregulation, and skin layers.