{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

Because the phospholipid molecules are free to move and the membrane is made of many different parts, the plasma membrane is said to be:

Impermeable

A fluid mosaic

Solid

A fatty acid

1

Which of the following is a function of the cell membrane?

Breaks down lipids, carbohydrates, and proteins from foods.

Stores water, salt, proteins, and carbohydrates.

Keeps the cell wall in place.

Regulates what materials enter and leave the cell.

1

Mmuae Afoforo a Wobɛpaw:

Polar Hydrophilic Head

Protein

Carbohydrate

Cholesterol

Peripheral Protein

Nonpolar Hydrophobic Tail

1

Diffusion is the movement of molecules from:

An area of low concentration to an area of high concentration.

An area of high concentration to an area of low concentration.

An area of equilibrium to an area of high concentration.

All of the above.

1

The movement of water across a selectively permeable membrane is called:

Endocytosis

Facilitated diffusion

Osmosis

Active transport

1

In the diagram above, which of the following represents a cell in equilibrium with the surrounding solution?

A

B

C

D

1

What process requires energy for particles to pass through the cell membrane?

Diffusion

Facilitated diffusion

Osmosis

Active transport

1

One of the functions of proteins in a cell membrane could be:

To allow larger molecules to pass through the cell membrane.

To make sugar for the cell.

To provide nutrients to phospholipids.

To transform light into usable energy.

1

Most of the molecules in cell membranes are:

Proteins

Cholesterol

Water

Phospholipids

1

The phospholipid bilayer describes a structure with:

Polar heads on the outside and non-polar tails on the inside.

Non-polar tails on the outside and polar heads on the inside.

Polar layers on both the inside and outside.

Non-polar layers on both the inside and outside.

1

If all materials were allowed to cross the cell membrane, then a cell’s contents would be the same as its surroundings. This does NOT happen because the cell membrane is:

Permeable

A fluid mosaic

Selectively permeable

In dynamic equilibrium

1

The molecule shown in the illustration above is passing through the transport protein from an area of high concentration to an area of low concentration. This process is called:

Active transport

Facilitated diffusion

Endocytosis

Osmosis

1

The unicellular organism pictured above is taking IN a large food particles by which process?

Facilitated diffusion

Exocytosis

Lysocytosis

Endocytosis

1

If hypotonic cells are placed in a highly concentrated sugar solution, water will:

Move from the sugar solution to the cells.

Move from the cells to the sugar solution.

Stay in the cell.

Evaporate.

1.6 Membrane/Transport Optional

1.6 Membrane/Transport Optional

Because the phospholipid molecules are free to move and the membrane is made of many different parts, the plasma membrane is said to be:

Which of the following is a function of the cell membrane?

Diffusion is the movement of molecules from:

The movement of water across a selectively permeable membrane is called:

In the diagram above, which of the following represents a cell in equilibrium with the surrounding solution?

What process requires energy for particles to pass through the cell membrane?

One of the functions of proteins in a cell membrane could be:

Most of the molecules in cell membranes are:

The phospholipid bilayer describes a structure with:

If all materials were allowed to cross the cell membrane, then a cell’s contents would be the same as its surroundings. This does NOT happen because the cell membrane is:

The molecule shown in the illustration above is passing through the transport protein from an area of high concentration to an area of low concentration. This process is called:

The unicellular organism pictured above is taking IN a large food particles by which process?

If hypotonic cells are placed in a highly concentrated sugar solution, water will:

Because the phospholipid molecules are free to move and the membrane is made of many different parts, the plasma membrane is said to be:

Which of the following is a function of the cell membrane?

Diffusion is the movement of molecules from:

The movement of water across a selectively permeable membrane is called:

In the diagram above, which of the following represents a cell in equilibrium with the surrounding solution?

What process requires energy for particles to pass through the cell membrane?

One of the functions of proteins in a cell membrane could be:

Most of the molecules in cell membranes are:

The phospholipid bilayer describes a structure with:

If all materials were allowed to cross the cell membrane, then a cell’s contents would be the same as its surroundings. This does NOT happen because the cell membrane is:

The molecule shown in the illustration above is passing through the transport protein from an area of high concentration to an area of low concentration. This process is called:

The unicellular organism pictured above is taking IN a large food particles by which process?

If hypotonic cells are placed in a highly concentrated sugar solution, water will: