9 weeks Assessment (Q2)

Front

What is concentration in a solution?

Back

Concentration refers to the amount of a substance (solute) present in a given volume of solution. It is often expressed in terms of mass per unit volume.

Front

What happens to dye when added to water?

Back

The dye disperses throughout the water, creating a concentration gradient where the dye is more concentrated near the drop and less concentrated further away.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, causing cells in this solution to swell as water enters.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are organelles that synthesize proteins by translating messenger RNA (mRNA) into polypeptide chains.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until evenly distributed.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the difference between plant and animal cells in hypotonic solutions?

Back

Plant cells swell but do not burst due to their rigid cell wall, while animal cells may burst because they lack a cell wall.

Front

What is the significance of temperature regulation in the body?

Back

Temperature regulation is crucial for maintaining optimal conditions for enzymatic reactions and overall metabolic processes.