Support and movement

Class 12 · Biology · 5 questions

Name: ____________________ Date: ____________

Muscle contraction involves the sliding of:
- A Cellulose and chitin
- B Actin and myosin
- C Insulin and glucagon
- D Collagen and keratin
The energy for muscle contraction comes directly from:
- A Calcium alone
- B ATP
- C Water
- D Oxygen alone
Joints that allow movement in all directions are:
- A Hinge joints
- B Pivot joints only
- C Fixed joints
- D Ball and socket joints
Cartilage is found at the:
- A Inside red blood cells
- B Teeth only
- C Surface of the skin
- D Ends of bones in joints
Lack of calcium and vitamin D in children causes:
- A Beriberi
- B Night blindness
- C Rickets
- D Scurvy

Answer key

1. B, 2. B, 3. D, 4. D, 5. C