AS LEVEL BIOLOGY... discuss here AS students only :)

[ruler_of_the_world]

(Y)

Not really, to get an A, you gotta get questions right. It's as simple as that. Don't count on the threshold.
If the threshold is low, then you can be sure that the exam was hard for the general population (which normally includes you as well) and that their marking is relatively strict.

Their making is strict when the paper is easy n lenient when it's difficult, though uve got a point understanding the qs is most imp. I jus pray nothing comes out of the blue n everybody is able to perform their best! (Y)

 

[shafayat]

there are openings so that WBC can squeeze out Maybe!

sphinter muscles basically contract and realax to control an opening. precapillary means that before the start of a capillary these muscles are found. so thees muscles must be to open or close the capillary openings wen needed. Although i don't get why they would be opnening or closing bcz transfer is through the walls of the capillar

 

[Mariam Mohamed SX132]

Guysss! I studied but I'm just so nervous about tomorrow's exam! Someone tell me it's gonna be ok!!

 

[daredevil]

there are openings so that WBC can squeeze out Maybe!

yeah maybe

 

[daredevil]

Guysss! I studied but I'm just so nervous about tomorrow's exam! Someone tell me it's gonna be ok!!

aahh sister wen someone teells u that plz tell me too bcz i SUCK at bio ... urghh i would give anything to have a math paper tommorrow instead! :O

 

[Mariam Mohamed SX132]

aahh sister wen someone teells u that plz tell me too bcz i SUCK at bio ... urghh i would give anything to have a math paper tommorrow instead! :O

really , I like solving math but not a math exam! Inshallah it will be great!

 

[daredevil]

really , I like solving math but not a math exam! Inshallah it will be great!

i sure do hope so! *fingers crossed*

 

[MÁťT PŭמҚ]

wat is vital capacity and tidal volume?? :/ -_-

 

[axetreme.O]

wat is vital capacity and tidal volume?? :/ -_-

i don't think someone has to know this under AS syllabus....

 

[MÁťT PŭמҚ]

i don't hink someone has to know this under AS syllabus....

But i think so..!!

 

[HubbaBubba]

But i think so..!!

Yes it's in the syllabus btw
Tidal Volume: amount of air inhaled and exhaled during a normal breath
Vital Capacity: maximum amount of air that can be expelled from the lungs

 

[axetreme.O]

But i think so..!!

whoops sorry, yeah.

 

[MÁťT PŭמҚ]

Yes it's in the syllabus btw
Tidal Volume: amount of air inhaled and exhaled during a normal breath
Vital Capacity: maximum amount of air that can be expelled from the lungs

thnkx.. ^_^

 

[Fatima_Toomii]

Can someone explain to me how HIV works?

 

[HubbaBubba]

Can someone explain to me how HIV works?

The HIV virus when it's in your body, destroys your immunity cells making their numbers decrease particularly the T-helper lymphocytes. T helper cells are the cells responsible for alerting the body to infections by releasing cytokines when encountering antigens.
Since there are low numbers of these cells, the body can't defend itself against infections and eventually the body is infected with many kinds of pathogens.

 

[Ahmed Khalel]

sorry for my mistake Ahmed

Thank you ,
imp. thing that you tried to help

 

[Ahmed Khalel]

Good night guyz,
Hope the exam will be easy for all of us,
good luck in the bio. exam,
and good luck for the ones taking mechanics,
Inshaallah we all get a.

 

[MÁťT PŭמҚ]

How golgi apparatus packages protiens into lysosomes?? :/

 

[Mariam Mohamed SX132]

How golgi apparatus packages protiens into lysosomes?? :/

Is that a past paper question , and if so can u put the link? becuase I didnt hear of that

 

[Irfan1995]

How golgi apparatus packages protiens into lysosomes?? :/

Through glycosylation and phosphorylation. I'm not going to bother giving a detailed explanation, as I'm pretty sure they aren't included in the AS syllabus.