Diffusion Through a Membrane Review

Identify the cellular structure that diffusion occurs across.

• ribosome

• mitochondria

• cytoplasm

• cell membrane

• chloroplast

Identify the cellular structure that diffusion occurs across.

• ribosome

• mitochondria

• cytoplasm

• cell membrane

• chloroplast

Identify the substance/molecule that will not diffuse.

• Starch

• Glucose

• Iodine

Identify the number that shows the cell membrane in this animal cell.

• 1

• 2

• 3

• 4

Molecule A cannot diffuse. What is a possible reason why?

• Molecule A is a macromolecule and it is too large to move.

• Molecule A is a building block and it is too large to move.

• Molecule A is a building block and it is too small to move.

• Molecule A is a macromole and it is too small to move.

What is the starch indicator?

• Iodine

• Bromothymol Blue

• Benedict's Solution

• Glucose

What color does the starch indicator turn when it comes in contact with starch?

• blue-black

• blue

• orange-red

• yellow

What is the building blocks of starch?

• glucose

• fatty acids

• lipids

• amino acids

After 24 hours, where will starch be found in this experiment?

• outside the cell, only

• outside and inside the cell

• inside the cell, only

breaks down food into energy that the cell can

use in a process called cellular respiration

• chloroplast

• ribosome

• mitochondria

• nucleus