Cell Membrane Basics (Version B)

Front

What is the main component of the plasma membrane?

Back

lipid

Answer explanation

The main component of the plasma membrane is a lipid, making it a lipid bilayer that provides structure and regulates what enters and exits the cell.

Front

flexible boundary of a cell that separates a cell from its surroundings

Back

Answer explanation

The plasma membrane is the flexible boundary of a cell that separates a cell from its surroundings, which is the correct definition provided.

Front

What forms the channels and pumps in the phospholipid bilayer?

Back

proteins

Answer explanation

Proteins form the channels and pumps in the phospholipid bilayer.

Front

Something is ___________ ____________ when some molecules can cross the membrane while others cannot.

Back

Selectively (or Semi) Permeable

Answer explanation

Something is selectively (or semi) permeable when some molecules can cross the membrane while others cannot.

Front

The cell membrane is selectively permeable, which means...

Back

Certain things can enter while others cannot

Answer explanation

The cell membrane is selectively permeable, which means certain things can enter while others cannot.

Front

This cell organelle helps maintain homeostasis by controlling what substances may enter or leave cells.

Back

cell membrane

Answer explanation

The cell membrane helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

Front

What are the 2 parts of a phospholipid called?

Back

Hydrophilic Head, Hydrophobic Tail

Answer explanation

The two parts of a phospholipid are the Hydrophilic Head and the Hydrophobic Tail.

Front

Hydrophilic

Back

"Water Loving"

Answer explanation

The correct term for 'Water Loving' is Hydrophilic, which means having a strong affinity for water.

Front

In a lipid bilayer, ___________ fatty acid tails face each other within the bilayer and form a region that excludes water.

Back

Hydrophobic

Answer explanation

In a lipid bilayer, hydrophobic fatty acid tails face each other within the bilayer and form a region that excludes water.

Front

Another term for equilibrium is...

Back

Homeostasis

Answer explanation

Another term for equilibrium is homeostasis, which refers to a state of balance or stability within a system.