Biology q2 semester exam 12-6

Front

What is the relationship between photosynthesis and cellular respiration?

Back

Photosynthesis uses carbon dioxide and water released by cellular respiration to produce glucose and oxygen.

Front

What happens to solute molecules in a cell placed in a solution?

Back

Solute molecules will diffuse from an area of higher concentration to an area of lower concentration.

Front

How does an enzyme affect a chemical reaction?

Back

An enzyme speeds up a reaction by lowering the activation energy required for the reaction to occur.

Front

Where are the instructions for making proteins encoded in a cell?

Back

The instructions for making proteins are encoded in the DNA of a cell, specifically located in the nucleus.

Front

What occurs to algal cells in an isotonic solution when additional solutes are added?

Back

The algal cells will shrink as water moves out of the cells to balance the solute concentration.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

Define cellular respiration.

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment that absorbs sunlight, providing the energy needed for photosynthesis.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the function of the nucleus in a eukaryotic cell?

Back

The nucleus houses the cell's DNA and is responsible for regulating gene expression and cell division.