Transport & Cell Cycle 2021

Osmosis is the movement of ______ through the cell membrane.

• Salt
• Proteins
• Water
• Nutrients

The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...

• Facilitated Diffusion
• Simple Diffusion
• Active Transport
• Osmosis

Food is moved into the cell by ________________________.

• endocytosis
• pinocytosis
• exocytosis
• osmosis

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

• vacuole
• nucleus
• cell membrane
• cell wall

The cell below is in a _________ solution.

• Hypotonic

• Hypertonic

• Isotonic

The cell below is in a _____________ solution.

• Hypertonic
• Hypotonic
• Isotonic

A cell in an isotonic solution will

• swell
• shrink
• stay the same size
• impossible to tell

Active transport requires ______, moves materials from __________________, and goes _______ the concentration gradient.

• No energy, low to high, against

• ATP (energy), high to low, with

• ATP (energy), low to high, with

• ATP (energy), low to high, against

How does a cell maintain homeostasis?

• Regulates what enters and leaves the cell
• Flexibility
• Protective barrier
• Structure and support

Another term for equilibrium is...

• Not enough
• Too little
• Homeostasis
• Too much