B1 cell structure and transport

Question 1

nucleus

Answer 1

controls cell activities

carries instructions to make proteins

Question 2

cytoplasm

Answer 2

liquid gel which organelles are suspended

chemical reactions take place

Question 3

cell membrane

Answer 3

controls movement of substances going in and out

Question 4

mitochondria

Answer 4

where energy is transferred in aerobic respiration

Question 5

ribosomes

Answer 5

where photosynthesis takes place

Question 6

cell wall

Answer 6

for support and is made of cellulose

Question 7

chloroplasts

Answer 7

contain chlorophyll

Question 8

vacuole

Answer 8

contains cell sap keeping it rigid and supports plant

Question 9

what are eukaryotic cells

Answer 9

animal, plant, fungi and Protista

contain nucleus

Question 10

prokaryotic cells

Answer 10

single celled organism
e.g bacteria
no nucleus
slime capsules 
some have flagella

Question 11

name specialisations in animal cells

Answer 11

neurone
muscle cells
sperm cells

Question 12

neurone adaptions

1. axon
2. nerve sendings
3. dentries

Answer 12

1. carry impulse
2. passes impulse to other neurones
   3 make connections

Question 13

muscle cells

Answer 13

contract and relax
special proteins
mitochondria(make energy)
store of glycogen
smooth(digestive system)
stirrated (movement)

Question 14

sperm

1) neucleus
2) tail
3) mitochondria

Answer 14

1) contains dna
2) movement
3) energy to move

Question 15

name specialisation in plant cells examples

Answer 15

root hair
xylem
phloem

Question 16

root hair cell

1) vacuole
2) mitochondria
3) root hair

Answer 16

1) for water movement
2) energy for scribe transport
3) increases surface area

Question 17

xylem

1) cell wall
2) hollowness
3) lignin

Answer 17

1) internal structure
2) for transportation
3) structure

Question 18

phloem

1) companion cells
2) mitochondria

Answer 18

1) keep it alive

2) energy to transfer food

Question 19

diffusion

1) definition
2) rate affected by
3) examples?

Answer 19

1) molecules enter and leave cell
moving from higher conc areas to lower
2)concentration gradient,available surface area temp(hot=fast)
3) gas exchange in lungs (oxygen and carbon, gut diffusion(sugars and amino acids)

Question 20

osmosis

1) definition
2) define isotonic, hypertonic, hypotonic
3) osmosis in plants and animal cells

Answer 20

1) movement from dilute to concentrated (liquid diffusion)
2) equal concentration, more conc, more diluted
3) animal: hypo-shrinks, hyper-swells
plant: hypo- turgid and strong, hyper- wilts

Question 21

active transport
1) define
2)