Summey #4 Biology EoC

Front

What happens to a cell with 15% solute concentration when placed in a 5% solute concentration solution?

Back

The cell will gain H2O and expand.

Front

How does the structure of phospholipids relate to the function of the cell membrane?

Back

The head of the phospholipid is hydrophilic, controlling the movement of large hydrophobic molecules, while the tails are hydrophobic, controlling the movement of large hydrophilic molecules.

Front

What is the significance of compartmentalization in eukaryotic cells?

Back

Compartmentalization maximizes the surface area where cellular processes can occur.

Front

Which molecule is most favored by mitochondria for quick energy?

Back

Glucose.

Front

At what pH is salivary amylase most active?

Back

pH 7.

Front

Define osmosis.

Back

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

Front

What is the role of mitochondria in cells?

Back

Mitochondria are the powerhouses of the cell, generating ATP through cellular respiration.

Front

Explain the fluid mosaic model of the cell membrane.

Back

The fluid mosaic model describes the cell membrane as a flexible layer made of lipid molecules with proteins embedded, allowing for movement and interaction.

Front

What is the function of enzymes in biological processes?

Back

Enzymes act as catalysts to speed up chemical reactions in the body without being consumed.

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.