Topic 2 - From one cell to two...

What types of things does a cell need to remove from itself?

(choose all correct answers)

• oxygen

• waste

• carbon dioxide

• food

What types of things does a cell need to move into itself?

(choose all correct answers)

• oxygen

• waste

• carbon dioxide

• food

What happens if a cell grows too big?

• The organism becomes overweight

• The surface area to volume ratio gets too small and materials cannot move in and out well enough.

• The volume becomes too small and the organism can't get the materials it needs.

• The volume and surface area grow at the same rate.

What limits a cell's size?

• Volume of the cell

• The ratio between and mass and volume

• The ratio between the cell size and volume

• The ratio between the surface are and volume

As you grow from a toddler to a teenager, you increase in size. This is because:

• Your cells stretch to become bigger.

• The space between your cells expands.

• Your cells replicate and increase in number.

• The world around you shrinks.

At the end of the cell cycle, there are:

• Two genetically identical daughter cells.

• One bigger cell.

• One big cell and one small cell.

• Two genetically different daughter cells.

The correct order of phases in the cell cycle is:

• Cytokinesis, mitosis, interphase

• Interphase, cytokinesis, mitosis.

• Interphase, mitosis, cytokinesis.

• Mitosis, interphase, cytokinesis.

Why are cells so darn small?

• So they can fit into tiny spaces.

• Because diffusion is more efficient across small distances.

• Because they're so cute when they're small!

• Because diffusion is more efficient across big spaces.

What happens during the G₁ phase of interphase?

• The cell's DNA duplicates (copies).

• The cell grows in size and duplicates its organelles.

• The cell checks for DNA mutations and prepares for mitosis.

• The cell clones separate.

What happens during the S phase of interphase?

• The cell's DNA duplicates (copies).

• The cell grows in size and duplicates its organelles.

• The cell checks for DNA mutations and prepares for mitosis.

• The cell clones separate.