Biology Semester 1 Review

Front

What is the function of the cell membrane?

Back

The cell membrane is a flexible boundary that controls the movement of substances into and out of the cell.

Front

What type of macromolecule are enzymes?

Back

Enzymes are proteins.

Front

What essential substance is involved in chemical reactions within cells along with carbohydrates, proteins, lipids, and nucleic acids?

Back

Water.

Front

What happens to an enzyme when it is exposed to a temperature significantly higher than its optimal temperature?

Back

The enzyme will denature and not work anymore.

Front

Where does photosynthesis take place in a plant cell?

Back

Photosynthesis takes place in the chloroplast.

Front

What is the primary role of chloroplasts in plant cells?

Back

Chloroplasts are responsible for conducting photosynthesis.

Front

Define denaturation in the context of enzymes.

Back

Denaturation is the process where an enzyme loses its functional shape due to extreme conditions, such as high temperature or pH.

Front

What are the four main types of macromolecules essential for life?

Back

Carbohydrates, proteins, lipids, and nucleic acids.

Front

What is the role of water in biological systems?

Back

Water is essential for chemical reactions, transport of substances, and maintaining cell structure.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and organelles.