Biology Quiz for 5th Grade

All living organisms need food to obtain energy, which is used for growth, movement, and other bodily functions. Sunlight helps plants make food through photosynthesis, but food is the main energy source for most animals.

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to make food (glucose). This food provides energy for the plant to grow.

The roots of a plant absorb water and nutrients from the soil, which are essential for the plant’s growth and survival.

Mitochondria are known as the "powerhouses" of the cell. They convert food into energy (ATP) that cells use for various functions.

Mammals are warm-blooded animals that have fur or hair at some point in their life cycle. Most also give live birth and nurse their young with milk.

Vertebrates are animals that have a backbone (spine), such as mammals, birds, reptiles, amphibians, and fish.

The circulatory system moves blood through the body, transporting oxygen, nutrients, and waste products to and from cells.

Respiration is the process in which animals breathe in oxygen and release carbon dioxide, which is used by plants for photosynthesis.

Frogs are amphibians. They start their life in water as tadpoles and later develop the ability to live on land as adults.

The skin is the largest organ in the human body. It acts as a protective barrier and helps regulate temperature.