Unit 4 - Matter and Energy Exchange

Question 1

Manipulated Variable

Answer 1

the variable being tested

Question 2

responding variable

Answer 2

the variable that is measured

the results

Question 3

controlled variables

Answer 3

things that need to stay the same

temp, time, age, gender……

Question 4

qualitative data

Answer 4

description or words

observed with the senses

(color,odour,state change)

Question 5

quantitative data

Answer 5

measurements

temp, length, volume..

Question 6

line graph

Answer 6

used when the manipulated variable is time

manipulated variable goes on the x axis and responding variable goes on the y axis

Question 7

bar graph

Answer 7

used for comparing groups of data

Question 8

total magnification

Answer 8

magnification of ocular lens X magnification of objective lens

Question 9

nulceus

Answer 9

brain, contains DNA

Question 10

nucleolus

Answer 10

makes RNA and ribosomes

Question 11

chromosome

Answer 11

in the nucleus, made of DNA

Question 12

cell membrane

Answer 12

semipermeable

Question 13

golgi complex

Answer 13

packaging

Question 14

lysosomes

Answer 14

digestion

Question 15

vacuole

Answer 15

large storage container

Question 16

vesicle

Answer 16

small storage container

Question 17

centrioles

Answer 17

only in animal cells, cell division

Question 18

ribosomes

Answer 18

protein synthesis

Question 19

endoplasmic reticulum

Answer 19

transport

Question 20

mitochondrion

Answer 20

makes ATP energy through cellular respiration

Question 21

cell wall

Answer 21

present in plant cells and prokaryotic cells

made of cellulose

Question 22

chloroplast

Answer 22

present in plant cells

contains chlorophyll which absorbs red and blue wavelengths of sunlight and reflects green

where photosynthesis happens