science 8 chapter 1 unit review

Question 1

what are the 5 characherstics of living things

Answer 1

1. living things respond to their environment
2. living things need energy
3. living things grow
4. living things reproduce
5. living thing must get rid of wastes

Question 2

what does the eyepiece do

Answer 2

you look into it

Question 3

where do you hold the microscope

Answer 3

the arm

Question 4

what zooms is the coarse focus knob for

Answer 4

small or medium zoom

Question 5

what zooms is the fine focus knob for

Answer 5

large zoom

Question 6

what does the light source do

Answer 6

shines light on to the object

Question 7

what does the stage do

Answer 7

holds the object

Question 8

how do you see a object under the compound light microscope

Answer 8

magnified inverted and reversed

Question 9

what is the abillity to distuingsh two dots or objects that are very close togeather is callled………..

Answer 9

resolving power

Question 10

what is a organelle

Answer 10

a cell strucer in wich functions are carried out to ensures the cells survival

Question 11

what is a cell membrane

Answer 11

the protection dome that surronds the newo. it controls or regulates the flow of materials in and out of the colony

Question 12

what is a clyptopasym

Answer 12

contains organelles water and other life supporting materials

Question 13

what does DNA stand for

Answer 13

deoxyribonucleic acid

Question 14

when does cellear respirtatino occur

Answer 14

when the michtocondrian produce energy for the cell

Question 15

what haoppens in the metabolisim

Answer 15

all the chemical reactions take place in the metabolisim

Question 16

what assembels proteins

Answer 16

ribosomes

Question 17

some ribosomes float in………

Answer 17

the clyptolasm

Question 18

some ribososmes are attached to the……

Answer 18

endoplasmic recticuliam

Question 19

the endoplasmic recticluiam is…….

Answer 19

a network of membrane coverd channels

Question 20

the golgi body….

Answer 20

sorts the proteins and packs them into vesciles

Question 21

wich is bigger vessicles or vaccoules

Answer 21

vacuoles

Question 22

vescilles..

Answer 22

carry proteins nuetriens and water into out of and around the inside of the cell

Question 23

vacuoles…

Answer 23

are temporary storage compartments that store waste

Question 24

what are the two type of cells

Answer 24

prokaryotic cells and eukaryotic cells

Question 25

lysosome….

Answer 25

the lysosome contains digestive chemicals that break down food particals cell wastes and worn out cell parts

Question 26

cell theroys three main points

Answer 26

the cell is the basic unit of life
all organasims are composed of one or more cells
all cells come from other living cells

Question 27

is bacteria a eukaryotic cell or a prokryaotic cell

Answer 27

prokryatoic cell

Question 28

are viruses alive true or false

Answer 28

false

Question 29

what is the first line of defense from viruses

Answer 29

the skin and linings of all your internal body systems

Question 30

second line of defense

Answer 30

your body can mount an immune response to the attack and destroy the invaeder