IGCSE Biology

[nid404]

But the experiment is continued after the dry mass is weighed each time. If you het it, wont that kill it? And then the experiment cant be continued.

yeah exactly so the heat should be gentle to make sure it doesnt affect any enzymes or the plant itself

just to remove the water

[thukon]

i know, so that means nid got t wrong. If you heat it in the microwave, it kills the radish.

[ADIN]

i wrote that u should first measured its mass. then attach one to a potometer to measure the average uptake of water on that day and then subtract

[thukon]

What are the 2 reasons why livestock gain weight faster in the shed?

[ADIN]

i dint have much time for that so I wrote 1) less movement hence food is stored instead of used for respration and 2) less heat loss (no time to elaborate or add a word)

[nid404]

What are the 2 reasons why livestock gain weight faster in the shed?

1) less space to move in sheds so not much heat loss
2)insulation in shed against heat loss as weather outside is cold(which could cause heat loss as skin would radiate heat)

[thukon]

i dint have much time for that so I wrote 1) less movement hence food is stored instead of used for respration and 2) less heat loss (no time to elaborate or add a word)

I wrote that in the cold, the enzyme activity is slower, so there is slower metabolism. Lol.
But the first one i got right. I wrote less movement, so less excercise, and less weight loss.

[QuickSilver]

What are the 2 reasons why livestock gain weight faster in the shed?

1. No Movement So More Energy Can Be Stored Thus Gaining Weight
2. Since It Is Very Cold Outside, They Will Need Much Energy To Maintain a constant body temperature, in the shed it is warm meaning less energy is used and more is stored

Hope This Helps dont forget +rep

[annie_angel]

i dint have much time for that so I wrote 1) less movement hence food is stored instead of used for respration and 2) less heat loss (no time to elaborate or add a word)

i rote da same!!!!

[thukon]

What did you people write for how you can manufature enzymes from bacteria?

[QuickSilver]

What did you people write for how you can manufature enzymes from bacteria?

put them in a fermenter and add feed stock which contains important nutrients for the bacteria such as amino acids and glucose, then using motor stirrer you stir the mixture of feedstock enzymes and water, then enzymes respire producing bacteria which if extracelullar can be  easily extracted how ever if they are intaracellular than they have to crushed before they can be used, and to maintain a temperature for the bacteria u should surround the apparatus with a water jacket with a constant circulation of water

Hope This Helps

[QuickSilver]

Why Is My Rep Negative From Now!! I Just Joined!

I'm Helping Ain't I?

[thukon]

Not me. You just proves that im probably the only one who got the enzymes thing wrong. 
But it wasnt me who - repped you, i swear. Look at my rep and then feel good about yours.

[annie_angel]

Why Is My Rep Negative From Now!! I Just Joined!

I'm Helping Ain't I?

trust me...it always happens...

[QuickSilver]

aaaah ok oops -22 haha

I guess its some lifeless people that have nothing to do other than make problems and ruins people's REP so that it becomes like Theirs :S


Wierdos



Thanks Anyways +REP TO ALL OF YOU