A2 Biology | Post your doubts here

[angelgirl:)]

nah ..alhumdulilah its all ok by Allah's grace..
the thing is i really love maths n chem..as well as physics...so it's like i need to give less time to maths ...then chem also not that much..so yeah kinda able to cope up with...

ok thats good to hear...ya InshaAllah u will do well..

 

[sehrishwb]

Is there a guess paperpaper or something , like the probability'' of-this- might-come-since-it dint-come in a few years '' or something?

 

[angelgirl:)]

Is there a guess paperpaper or something , like the probability'' of-this- might-come-since-it dint-come in a few years '' or something?

hmmmm no

 

[angelgirl:)]

promoter function?

 

[angelgirl:)]

promoter function?

got it...

 

[user]

got it...

what is it..? mind sharing? aoa wr wb btw..

 

[angelgirl:)]

what is it..? mind sharing? aoa wr wb btw..

it activate the gene to express itself and to identify the point at which transcription should begain..

 

[girlscampisra]

thanks!

 

[mizmoody]

Nov/10/43
Q2: Describe the maturation of spermatid into spermatozoon(sperm)..

 

[angelgirl:)]

Nov/10/43
Q2: Describe the maturation of spermatid into spermatozoon(sperm)..

cell differenciation takes place in the sertoli cells...where the sperm gets matured into spermatozoan..
a tail forms called flagellum and is made of microtubules..with many mitochondria..
and the head made of acrosome which contains hydrolytic enzymes..

 

[mizmoody]

cell differenciation takes place in the sertoli cells...where the sperm gets matured into spermatozoan..
a tail forms called flagellum and is made of microtubules..with many mitochondria..
and the head made of acrosome which contains hydrolytic enzymes..

thanks!

 

[angelgirl:)]

1)glycogenolysis
2)gluconeogenesis
can anybody tell me the differences b/w them?

 

[angelgirl:)]

1)glycogenolysis
2)gluconeogenesis
can anybody tell me the differences b/w them?

1)glycogenolysis....the hydrolysis of glycogen to glucose..
2)gluconeogenesis...glucose formation in animals from a noncarbohydrate source, as from protiens or fats...

 

[angelgirl:)]

can any1 tell me wats saltatory conduction?

 

[angelgirl:)]

can any1 tell me wats saltatory conduction?

A form of nerve impulse conduction in which the impulse jumps from one Ranvier's node to the next, rather than traveling the entire length of the nerve fiber.

 

[histephenson007]

yyyyyyyyyyyyy...i have 3 subjects...bio ,chem(with AS level) and phy...
but among them bio is the subject which i love the most..

same here well, I guess bio and chem on almost equal basis.

 

[histephenson007]

1)glycogenolysis....the hydrolysis of glycogen to glucose..
2)gluconeogenesis...glucose formation in animals from a noncarbohydrate source, as from protiens or fats...

Is this in the syllabus??

 

[angelgirl:)]

Is this in the syllabus??

lol.. i dont no but i used to always get confuesd b/w these two processes...so i wanted to clear it out...

 

[histephenson007]

lol.. i dont no but i used to always get confuesd b/w these two processes...so i wanted to clear it out...

yea cuz they were really new words for me. But they make sense though

 

[angelgirl:)]

in photosynthesis thats the calcvin cycle takes place in the stroma of chloroplast...where as
in respiration thats the krebs cycle takes place in the matrix of mitochondria...
am i right?