Unit 3 Review

Front

What are the two types of feedback systems that help organisms maintain homeostasis?

Back

Positive and negative feedback systems.

Front

What is the gel-like fluid that fills up all the space in the cell that is not occupied by other organelles?

Back

Cytoplasm.

Front

What are enzymes?

Back

Enzymes are proteins that act as catalysts to speed up chemical reactions in the body.

Front

What regulates what enters and leaves a cell?

Back

Cell Membrane.

Front

Which organelle is only present in plant cells and helps in photosynthesis?

Back

Chloroplasts.

Front

What is homeostasis?

Back

Homeostasis is the process by which organisms maintain a stable internal environment.

Front

What is the function of ribosomes?

Back

Ribosomes are responsible for protein synthesis in the cell.

Front

What is the role of the nucleus in a cell?

Back

The nucleus contains the cell's genetic material and controls its activities.

Front

What is the function of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell, generating ATP through cellular respiration.

Front

What is the cell wall and where is it found?

Back

The cell wall is a rigid outer layer found in plant cells that provides structure and protection.