Grade 9 Biology Quiz

What is the basic unit of life?

• cell

• organism

• molecule

• atom

Which subtopic of biology deals with the structure of cells?

• Ecology

• Cell Biology

• Evolution

• Genetics

Which subtopic of biology deals with the function of cells?

• Ecology

• Evolution

• Genetics

• Cell Biology

What is the process by which cells maintain a stable internal environment?

• osmosis

• diffusion

• photosynthesis

• homeostasis

Which type of feedback mechanism amplifies the response to a stimulus?

• Positive feedback

• Inhibitory feedback

• Neutral feedback

• Negative feedback

Which type of feedback mechanism reduces the response to a stimulus?

• Positive feedback

• Negative feedback

• Neutral feedback

• Amplifying feedback

What is the process by which cells divide and produce two identical daughter cells?

• mitosis

• apoptosis

• meiosis

• cytokinesis

What is the first stage of the cell cycle?

• M phase

• G1 phase

• G2 phase

• S phase

During which stage of mitosis do the chromosomes line up in the middle of the cell?

• Metaphase

• Telophase

• Prophase

• Anaphase

What is the final stage of the cell cycle?

• Interphase

• Cytokinesis

• Mitosis

• Prophase