IB Biology Cells

The small tubes in a plant that moves the water upwards

The epidermal cells of leaves are capable of secreting a wax that is used to coat the leaves to prevent excessive water loss.

The cell membrane is semi-permeable, which means...

• All materials can enter and leave the cell

• Certain things can enter while others cannot

• The cell manually sorts through all materials

• Only certain cells can interact with the cell.

Which part of this phospholipid is hydrophobic?

• fatty lipid tails

• head

• all of it is hydrophobic

• none of it is hydrophobic

Tags

NGSS.MS-PS1-1

If a cell is placed in a HYPOTONIC solution, water will move _________ of the cell, causing it to ___________.

• into, swell

• out of, shrivel

• in and out of the cell, stay the same

Tags

NGSS.MS-LS1-2

What type of solution is this cell in?

• Isotonic

• Hypertonic

• Hypotonic

• diffused

What is the structure inside of a cell that has a specific purpose?

• Organelle

• Layer

• Prokaryote

Tags

NGSS.MS-LS1-2

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

What is diffusion?

• when molecules move 

• when molecules move from a high concentration to a low.

• no movement 

• molecules move everywhere