Biology Paper 1 and 3 help HERE ONLY!!!

[Feva]

yeah monnie but ive multiple choice physics/chemi afterwards.. lol

[monnie]

can someone plz explain
non-cyclical nature of energy flow

it means that energy doesn't flow in the environment in a circle form like the carbon or nitrogen cycle instead it flows as a chain form from upper to lower and lost as heat at end

[monnie]

yeah monnie but ive multiple choice physics/chemi afterwards.. lol

yeah me too but they r easy um not gonna study either

[kam]

can someone plz explain
non-cyclical nature of energy flow

it means that energy doesn't flow in the environment in a circle form like the carbon or nitrogen cycle instead it flows as a chain form from upper to lower and lost as heat at end

can u give me examples plz
+rep
really appreciate it

[sweetsh]

Can anyone explain to me the fresh and dry mass of the plant?

[Feva]

dry mass is the mass of the plant after all the water have been evaporated

[Malak]

Can anyone explain to me the fresh and dry mass of the plant?

Fresh mass means which have water contents in it and a Dry mass is like water dried/absorbed from it..

[sweetsh]

But sometimes you should explain more...

[hdbkiwi]

Can anyone explain to me the fresh and dry mass of the plant?

Dry mass-without water
Fresh-with water
Fresh mass is unreliable as differing crops have different levels of water in them, so dry mass is a better indicator.

[monnie]

Can anyone explain to me the fresh and dry mass of the plant?

fresh mass is the weight of the organizm including all the water in its body
dry mass is the mass of an organizm after the removal of the water content

[Feva]

Define the term Enzyme?

* a protein which acts as a biological catalyst

would that definition give me a full mark for the question?  

[sweetsh]

Thank you all I knew that! But needed furthur explanation! Anywy thank you

[monnie]

can someone plz explain
non-cyclical nature of energy flow

it means that energy doesn't flow in the environment in a circle form like the carbon or nitrogen cycle instead it flows as a chain form from upper to lower and lost as heat at end

can u give me examples plz
+rep
really appreciate it

um sorry i don't know any examples i don't even like bio i just memorize and i don't remember the teacher gave us examples but i don't think it is that important

[hdbkiwi]

Define the term Enzyme?

* a protein which acts as a biological catalyst

would that definition give me a full mark for the question?  

if it was a 2 mark question you would get 2 for biological and catalyst. protein just makes it even better haha  but if it was three marks explain what biological and catalyst mean, and then definitely include the protein part 

[monnie]

Define the term Enzyme?

* a protein which acts as a biological catalyst

would that definition give me a full mark for the question?  

a protein biological catalyst which speeds up the reaction without itself getting used it is specific to a substrate due to the active site