cells

Question 1

function and description of tonoplast

Answer 1

the semi-permable membrane of the vacuole, allows small molecules to pass through

Question 2

function and description of amyloplast

Answer 2

double membrane bound sac which syntheisies and stores starch granules

Question 3

function and description of permanent vacuole

Answer 3

membrane bound sac in cytoplasm filled with sap, maintains tugor and shape

Question 4

function and description of chloroplast

Answer 4

double membrane, filled with stroma, site of photosynthesis

Question 5

function and description of cell wall

Answer 5

made of cellulose protects and supports the cell

Question 6

function and description of plasmodesmata

Answer 6

microscopic channes that allow transport and communication between cells

Question 7

function and description of pits

Answer 7

pores in cell wall of xylem, allows water movement

Question 8

function and description of cytoplasm

Answer 8

site of chemical reactions

Question 9

function and description of ribosomes

Answer 9

site of protein synthesis

Question 10

function and description of cell membrane

Answer 10

regulates transport of materials in and out of cells

Question 11

function and description of mitochondria

Answer 11

provides energy, site of aerobic respiration

Question 12

function and description of centrioles

Answer 12

take part in cell division, made up of microtubules

Question 13

function and description of golgi apparatus

Answer 13

modifies and packages newly made proteins in to vesicles

Question 14

function and description of vesicles

Answer 14

transport materials around the cell

Question 15

function and description of rough endoplasmic reticulum

Answer 15

has ribosomes attached to it, synthesis and transportation of proteins

Question 16

smooth endoplasmic reticulum

Answer 16

flattened cavities surrounded by a thin membrane, synthesis of carbohydrates and lipids

Question 17

function and description of lysosomes

Answer 17

contain digestive enzymes which break down waste material

Question 18

function and description of nucleus

Answer 18

contains DNA , regulates cell activity

Question 19

function and description of nucleolus

Answer 19

makes ribosomes and RNA

Question 20

what is an eukaryotic cell

Answer 20

multicellular organism, contains 80s ribosomes, has membrane bound organelles and a nucleus, complex structures

Question 21

what is a prokaryotic cell

Answer 21

singel cell organisms, 70s ribosomes, no membrane bound organelles, simple structures

Question 22

function and description of plasmids

Answer 22

extra DNA that benefit survival of the organelle

Question 23

function and description of nucleoid

Answer 23

irregularly shaped region that holds genetic material without a membrane, controls cellular activity

Question 24

essential functions of cells

Answer 24

structure, transportations, information storage, production, energy

Question 25

function of bacteris cells

Answer 25

produce toxins