Biology Semester 1 2024

Front

Why do different body cells of the same individual look and function differently?

Back

Different genes are activated in different kinds of cells.

Front

What do the graphs demonstrating photosynthesis indicate?

Back

The rate of photosynthesis is affected by changes in the plant's environment.

Front

What are the reactants needed for photosynthesis?

Back

Light, chlorophyll, carbon dioxide, and water.

Front

How can thousands of different proteins be synthesized from only 20 different amino acids?

Back

The sequence and number of amino acids can be different in each protein.

Front

Which statement is NOT part of the cell theory?

Back

All organisms have DNA stored in a nucleus.

Front

What is the basic unit of structure and organization in organisms?

Back

The cell.

Front

What is photosynthesis?

Back

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What role does chlorophyll play in photosynthesis?

Back

Chlorophyll absorbs light energy, which is essential for the photosynthesis process.

Front

What is the function of DNA in cells?

Back

DNA contains the genetic instructions for the development and function of living things.

Front

What is the significance of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell.