Exploring Cells and Physical Forces

What is the basic unit of life in all living organisms?

• Tissue

• Cell

• Organ

• Organism

Which part of the cell contains the genetic material?

• Cytoplasm

• Nucleus

• Cell membrane

• Mitochondria

What is the function of the mitochondria in a cell?

• Protein synthesis

• Energy production

• Photosynthesis

• Cell division

Which of the following is a specialised cell?

• Red blood cell

• Skin cell

• Bone cell

• All of the above

What is the main function of the human skeleton?

• To produce energy

• To support and protect the body

• To digest food

• To circulate blood

Which type of joint is found in the shoulder?

• Hinge joint

• Ball and socket joint

• Pivot joint

• Fixed joint

What is the primary function of muscles?

• To store fat

• To produce hormones

• To enable movement

• To protect organs

Which type of muscle is found in the heart?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• Voluntary muscle

What is the law of reflection?

• The angle of incidence is equal to the angle of refraction

• The angle of incidence is equal to the angle of reflection

• Light travels in a straight line

• Light bends when it enters a different medium

What happens to light when it passes from air into water?

• It speeds up

• It slows down

• It disappears

• It remains unchanged