Cell Membrane Study Guide

What is the Channel’s Function

Passing molecules through membrane

What is the Carrier’s Function

Transfer after changing shape to support substance

What is the Cell Recognition’s Function

Recognise cells to see if they are harmful or not

What is the Receptor’s Function

They contain a shape that only allows certain molecules to pass

What is the Enzymatic’s Function

Carry direct metabolic reaction

Hypertonic  v.  hypotonic solutions

Hypertonic makes cells shrink and hypotonic makes them grow and almost burst

What substance is analogous to a factory manager and In what organelle would this substance be found?

DNA/ Chromosomes and Nucleus

Which cell organelle controls the activities of the entire cell? 

Nucleus

Which organelle generates energy to power cellular activities?

Mitochondria

Which organelle is responsible for assembling proteins?

Ribosomes

Once proteins have been assembled, to which organelle would they go next?

Rough ER

 Into what organelle might the cellular products be placed?

Vacuole

The movement of molecules from an area of high to low concentration:

Diffusion

The movement of water across a membrane:

Osmosis

A solution that has more molecules (like salt) outside the cell is a _______ solution.

Hypertonic

Cells in a Hypertonic solution will gain or lose water?

Lose

 A solution that has less  molecules (like salt) outside the cell is a _______ solution.

Hypotonic

Cells in a Hypotonic solution will gain or lose water?

Gain

A solution that has the same number of molecules as the cell is an _______ solution.

Isotonic

This disease is caused by a failure of the cell membrane, which causes mucus to build up in the lungs:

 Cystic Fibrosis

Cell membranes will let some things pass through them, this means they are:

Semipermeable

Type of transport that does not require energy:

Passive Transport

Type of transport that does require energy:

 Active Transport

When molecules are even throughout a space, it is called:

Equilibrium

 This organelle pumps out excess water:

Contractile Vacuole

The maintaining of a biological balance, or sameness:

Homeostasis

The outer boundary of all cells, its job is to move things in and out of the cell:

Cell Membrane

Type of transport where a cell takes in a large particle, like food:

Endocytosis

Type of transport where a cell pushes out large particles, like waste:

Exocytosis

 Type of transport where proteins channels help move molecules across the membrane:

 Facilitated Diffusion

When will Glucose Diffuse

If it is to big and polar

What order does the Endomembrane System occur in

Nucleus

Ribosome

Rough ER

Vesicle

Golgi Apparatus

Vesicle

Cytoskeleton

Cell Membrane

What is the cytoskeleton

Yellow lines on bottom

Where is the Integral and peripheral proteins

Big blue blobs

Where is the phospholipid bilayer

Red dots around the side

Where is the Cholesterol

Small yellow hexagons

Where is the Carbohydrates

Dark blue strands on the top of glycoproteins

What parts are Hydrophilic and hydrophobic part in cell membrane

Hydrophilic is the head and hydrophobic is the tails

Why do the phospholipids form a bilayer

Because the hydrophilic heads face twords the water and teh hydrophobic tails face away from the water

What is the rule of concentrant gradient

substances naturally move from areas of high concentration to areas of low concentration

What is a example of exocytosis

Nerve cells release nerotansmitter

What is a example of endocytosis

White blood cells engluf bacteria

Fluid Mosaic is…

The stuff inside the phosphorlipid bilayer that helps it move around

Semi permeable is…

How easy stuff can get through the cell such as small molecules