Unit 2 Test Review TRACY

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

Front

What happens to chlorophyll when light energy hits it?

Back

Chlorophyll reflects mainly green and yellow light and absorbs other wavelengths, which is essential for photosynthesis.

Front

Where is ATP primarily produced in eukaryotic cells?

Back

Most ATP is produced in the mitochondria, the powerhouse of the cell.

Front

What occurs when the last phosphate bond of ATP is broken?

Back

When the last phosphate bond of ATP is broken, energy is released, which can be used for cellular processes.

Front

What is osmosis?

Back

Osmosis is the diffusion of water through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to leave the cell.

Front

What is the role of mitochondria in cells?

Back

Mitochondria are responsible for producing ATP through cellular respiration, providing energy for the cell.

Front

Explain the process of facilitated diffusion.

Back

Facilitated diffusion is the process by which molecules pass through the cell membrane via specific transport proteins, without the use of energy.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.