2.1,2.2 cell structure and organism, size of structure

Question 1

plant cell organism

Answer 1

cell wall, cell membrane, nucleus, cytoplasm, mitochondria, ribosomes,
chloroplasts, vacuole

Question 2

animal cell organism

Answer 2

cell membrane, nucleus, cytoplasm, mitochondria, ribosomes, vacuole

Question 3

what do plant cells have that animal cells don’t?

Answer 3

cell wall , chloroplasts, maybe vacuole (small and temporary)

Question 4

nucleus

Answer 4

controls cell activities, contains DNA

Question 5

cytoplasm

Answer 5

where chemical reactions occur

Question 6

cell membrane

Answer 6

controls movement of substances in and out

Question 7

mitochondria

Answer 7

site of respiration , produces energy (ATP)

Question 8

ribosomes

Answer 8

makes proteins

Question 9

cell wall

Answer 9

provide structure and support

Question 10

chloroplasts

Answer 10

photosynthesis (contains green pigment chlorophyll)

Question 11

vacuole

Answer 11

stores water, nutrients and waste

Question 12

structure of prokaryotic cells (bacterial cell)

Answer 12

cell wall, cell membrane, cytoplasm, circular DNA, plasmids, ribosomes, (sometimes) flagellumc

Question 13

circular DNA (found in prokaryotic cell)

Answer 13

A single loop of DNA floats freely in the cytoplasm; controls cell functions (no nucleus).

Question 14

plasmids

Answer 14

Small rings of DNA; carry extra genetic information like antibiotic resistance.

Question 15

flagellum

Answer 15

A tail-like structure that helps the cell move.

Question 16

eukaryotic cells

Answer 16

e.g plants animals fungi protists

Question 17

how are new cells produced

Answer 17

new cells are produced by division of
existing cells

Question 18

specialised cells

Answer 18

ciliated cells, root hair cells, palisade mesophyll cells
neurones, red blood cells, sperm and egg cells (gametes)

Question 19

ciliated cells

Answer 19

movement of mucus in the trachea and bronchi

Question 20

root hair cells

Answer 20

absorption

Question 21

palisade mesophyll cells

Answer 21

photosynthesis

Question 22

neurones

Answer 22

conduction of electrical impulses

Question 23

red blood cells

Answer 23

transport of oxygen

Question 24

sperm and egg cells (gametes)

Answer 24

reproduction

Question 25

organisms levels organization

Answer 25

cells —> tissues —> organs —> organ system —> organism

Question 26

cells

Answer 26

basic units of life eg muscle cell

Question 27

tissue

Answer 27

group of similar cells performing same function

Question 28

organ

Answer 28

made of tissues working together

Question 29

organ system

Answer 29

multiple organs working together (circulatory system)

Question 30

organism

Answer 30

a living thing made of organ systems

Question 31

unicellular organism

Answer 31

e.g bacteria and protists performs all life function in one cell

Question 32

multicellular orgsnisms

Answer 32

have specialised cells for different function

Question 33

magnification formula

Answer 33

image size / actual size must be in mm or micrometers