Biology Quiz End of Term

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

• Tissue

• Organ

• Cell

• Organ system

Which of the following is a specialized cell?

• Muscle cell

• Bone

• Heart

• Skin

What is the primary function of the lungs in the human body?

• Digestion

• Gas exchange

• Circulation

• Reproduction

Which process in plants involves the conversion of light energy into chemical energy?

• Respiration

• Photosynthesis

• Fermentation

• Digestion

How do ecosystems maintain balance through interactions?

• By eliminating all predators

• Through interdependence and competition

• By increasing pollution

• Through isolation of species

Name one structure found in plant cells but not in animal cells.

• Cell wall

• Mitochondria

• Nucleus

• Ribosome

What is the function of the mitochondria?

• Photosynthesis

• Protein synthesis

• Energy production

• Cell division

Which instrument is used to see cells in detail?

• Telescope

• Microscope

• Stethoscope

• Periscope

Put these in order from smallest to largest: organ, tissue, cell, organ system.

• Cell, tissue, organ, organ system

• Organ, cell, tissue, organ system

• Tissue, cell, organ, organ system

• Organ system, organ, tissue, cell

Why are red blood cells shaped like a biconcave disc?

• To increase surface area for gas exchange

• To store more nutrients

• To protect against bacteria

• To fit through small blood vessels