Experiment 5.2 课本:pg54 (volume2)
| Experiment 5.2 课本:pg54 (volume2) sodium hydroxide > for absorbing CO2 ?? wire gauze : separate the specimen and the sodium hydroxide. red ink = indicator Aim: to study oxygen used during respiration . 小强のtube : xq 呼吸需要oxygen,吸了oxygen 变少了, CO2 被棉花吸(因为有sodium hydroxide) 导致瓶子里的气压低。瓶外的气压高,把red ink move towards test tube. Test reaction : glowing wooden splinter extinguishes (灭) ??? no oxygen hypothesis : oxygen is used by living things during respiration |
Form 1 _5.3 Oxygen is needed for respriration
Respiration 有两种:
External respiration : Breathing
Internal respiration : Process of oxidising
↓ ↓ ↓ ↓ ↓ ↓
Glucose + oxygen → energy + Carbon dioxide + water
Glucose from ( food )
Oxygen from ( Air )
Energy is used :
External respiration : Breathing
Internal respiration : Process of oxidising
↓ ↓ ↓ ↓ ↓ ↓
Glucose + oxygen → energy + Carbon dioxide + water
Glucose from ( food )
Oxygen from ( Air )
Energy is used :
- to carry out daily activities .
- sythesis(制造) of liquid of lipid (脂肪)and protein .
- enables movement.
- basal metabolic rate ( minimum daily energy requirement ).
★③ ⑦月②⑤日
LOL
long no update my blog + poem le jor ~
sick ..
won't go to skul but on9 >.<
finish repairing my cp ,
sdo cant use arhhh!!!
long no update my blog + poem le jor ~
sick ..
won't go to skul but on9 >.<
finish repairing my cp ,
sdo cant use arhhh!!!
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