Living Environment Thanksgiving Review

Front

What are stomata?

Back

Stomata are small openings on the surface of leaves that allow for gas exchange. They are surrounded by guard cells that regulate their opening and closing.

Front

What is the function of mitochondria?

Back

Mitochondria are organelles known as the powerhouse of the cell, where cellular respiration occurs to produce energy (ATP) from glucose and oxygen.

Front

What is respiration?

Back

Respiration is a biochemical process in which living organisms convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is an independent variable in an experiment?

Back

An independent variable is the factor that is changed or manipulated in an experiment to test its effects on the dependent variable.

Front

What is the relationship between exercise and pulse rate?

Back

Exercise typically increases pulse rate as the body requires more oxygen and energy during physical activity.

Front

Define guard cells.

Back

Guard cells are specialized cells that surround stomata and control their opening and closing to regulate gas exchange and water loss.

Front

What is the role of chloroplasts?

Back

Chloroplasts are organelles in plant cells that conduct photosynthesis, converting light energy into chemical energy in the form of glucose.

Front

What is the process of photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.

Front

What is the significance of cellular respiration?

Back

Cellular respiration is essential for converting biochemical energy from nutrients into ATP, which powers cellular activities.

Front

What is a control in an experiment?

Back

A control is a standard for comparison in an experiment, which remains constant and is not affected by the independent variable.