Lab Quiz(Potato Osmosis and A Window Into the Cell)


Movement across the cell membrane that does not require energy is call (active/passive) transport.


The difference in the concentration of a substance across a space is called a concentration(equilibrium/gradient)


If there is a concentration gradient, substances will move from an area of high concentration to an area of (equal/low) concentration.

Selectively permeable

The cell membrane is (selectively permeable/impermeable).


(Equilibrium/Diffusion) is the simplest type of passive transport


The diffusion of water through a selectively permeable membrane is called (osmosis/diffusion)


The direction of water movement across the cell membrane depends on the concentration of free water (molecules/solutions)


A solution that causes a cell to swell is called a (hypertonic/hypotonic) solution.

Contractile vacuoles

Organelles that collect excess water inside the cell and force water out are called (diffusion organelles/contractile vacuoles)


The process of taking material into the cell by in-folding the cell membrane is called (endocytosis/exocytosis)


In (facilitated/molecular) diffusion, membrane proteins help molecules across the membrane.

Spread out

In diffusion, molecules (spread out/condense)

the cell membrane

The lipid bilayer describes (a type of transport/the cell membrane)


Facilitated diffusion moves substances down their concentration gradient (with/without) using the cell's energy


In an isotonic solutions how are the arrows?

pointed in

In an hypotonic solution where are the arrows pointing?

pointed out

In an Hypertonic solution where are the arrows pointing?


10% salt and 10% salt solution


2% salt and 10% salt


30% salt and 10% salt

function of nucleus

Contains genetic material, controls the cell

purpose of plasma or cell membrane

Protects cell from its surroundings


keeps everything in place in the cell

cytoplasm and plasma membrane

Which organelles are present in the diagrams of all three types of cells?

Plant and animal cells

Which cell types contain a nucleus

Vacuole, cell wall, chloroplasts

Which organelles were present in the Elodea cell diagram but absent in the cheek cell diagram

plant cells are long. Plant cells have chloroplast, the cell wall and vacuoles. The Animal Cell doesn't have any of those.

What are the differences between plant cells and animal cells

Plasma membrane(cell membrane)

Organelle Description: The unit membrane that encloses the entire cell.

Plasma membrane(cell membrane)

Organelle Function: Protects cell from surroundings

Endoplasmic Reticulum (ER)

Organelle Function: Fix cells if needed, help assemble proteins

Golgi Aparatus

Organelle Function: Prepares proteins for transport to other parts of the cell


Organelle Function: Store bubbles containing food or waste.


Organelle Function: Turns food into energy, cellular respiration


Organelle Function: Protein builders, they connect one amino acid at a time and build chains


Organelle Function: Absorb sunlight and use water and carbon dioxide to produce food.


Organelle Function: Instructions to make molecules called proteins


Organelle Function: Keep DNA tightly wrapped around spool-like proteins

Cell wall

Organelle Function: Used in protection and structure

Endoplasmic Reticulum(ER)

Organelle Description: System of channels, sacs, and tubes throughout the cytoplasm; continuous with plasma and nuclear membrane

Golgi apparatus

Organelle Description: Parallel layers of flattened sacs (like a stack of pancakes) with numerous small vesicles around the stack


Organelle Description: Membrane enclosed, fluid filled sacs


Organelle Description: Rodlike organelles bound by two unit membranes, the inner one of which has inward folds called cristae


Organelle Description: Small protein/RNA particles located on outer surface of ER and free in cytoplasm


Organelle Description: Contain chlorophyll; surrounded by a double unit membrane


Organelle Description: Basic units of heredity; composed of long molecules of DNA


Organelle Description: Elongate thread-like bodies clearly visible only when the cell divides; composed of protein, DNA

Cell Wall

Organelle Description: Composed of cellulose, a complex carbohydrate


You look into the microscope through this part

body tube

Light passes from the objective lens to the eyepiece through this part of the microscope


The objective lenses are mounted in this part of the microscope

objective lenses

There may be two or three of these mounted on the nosepiece. Each one magnifies a different power.


This part supports the entire upper portion of the microscope

coarse adjustment knob

You begin your focusing with this part of the microscope

fine adjustment knob

Once the object that you would like to view comes into focus, you use this to fine tune the image


The flat place under the objective lenses where you place the slide for viewing

stage clips

These two things keep the slide from moving around on the stage


This is a thin piece of glass where you place your specimen


The opening in the center of the stage that allows light through so you can easily see the object on the slide


You can move this disk under the stage and control the amount of light that comes up through the aperature

mirror or lamp

This provides light so that it is easier to see the object that you are viewing


This is the support for the microscope that holds it up


The mirror or lamp is located between these two things