LAB 5

Question 1

Stack of membranous saccules; functions in processing, packaging, and distribution of molecules

Answer 1

Golgi Apparatus

Question 2

Membranous sacs; storage and transport of substances

Answer 2

Vesicles

Question 3

Have a double membrane; responsible for cellular respiration and production of ATP molecules

Answer 3

Mitochondria

Question 4

Particles that carry out protein synthesis

Answer 4

Ribosomes

Question 5

Outer surface that regulates entrance and exit of molecules

Answer 5

Plasma membrane

Question 6

Region in nucleus that produces subunits of ribosomes

Answer 6

Nucleolus

Question 7

Short cylinders, present in centrosomes, of unknown function

Answer 7

Centrioles

Question 8

Central body, having diffuse threads of DNA and protein

Answer 8

Nucleus

Question 9

Vesicle that digests macromolecules and even cell parts

Answer 9

Lysosome

Question 10

Composed of microtubules, actin filaments, and intermediate filaments; responsible for the shape of the cell and the movement of its parts

Answer 10

Cytoskeleton

Question 11

Membranous saccules and canals having no ribosomes; synthesize lipid molecules

Answer 11

Smooth ER

Question 12

The random movement of molecules from the area of higher concentration to the area of lower concentration until they are equally distributed.

Answer 12

Diffusion

Question 13

Consists of a liquid solvent and dissolved particles called solutes

Answer 13

Solution

Question 14

The diffusion of water molecules across a selectively permeable membrane

Answer 14

Osmosis

Question 15

A form of channel proteins

Answer 15

Aquaporins

Question 16

The relative concentration of solute and solvent outside the cell compared to inside the cell

Answer 16

Tonicity

Question 17

Has the same concentration of solute as the cell. When cells are placed in this, there is no net movement of water.

Answer 17

Isotonic Solution

Question 18

Has a higher solute concentration than the cell. When cells are placed onto this, water moves out of the cell into the solution.

Answer 18

Hypertonic solution

Question 19

Has a lower solute concentration than the cell. When cells are placed in this, water moves from the solution into the cell.

Answer 19

Hypotonic Solution

Question 20

Is present in cells, it speeds the breakdown of the toxic chemical hydrogen peroxide to water and oxygen

Answer 20

Catalase