Biology P31 <-----

[Ashique]

PEOPLE it is not respiration or digestion, think wider, it's ABSORBTION!!!!

right there. To explain active transport for 2 marks, you HAVE TO write about respiration and obtained energy.

I wrote Diffusion. The concentration of glucose in the capillaries of the intestinal walls of the bag was less than the content. thus is diffused from an area of higher concentration to an area of lower concentration, thus decreasing the glucose concentration and the volume.

 

[imanmalik]

I wrote it help push food along and the muscle contractions to push the fat along the lymph vessels

 

[haochen]

like me

 

[Alpha45]

The right answer is that muscles allow the villi to move around close in contact with the nutrients , this will reduce diffusion distance therefore increase rate of diffusion .

 

[haochen]

 

[pjcotera]

the muscle was peristalsis.
actually in the experiment one, i said that the small untestine had characteristics that allowed for diffusion like large surface area and moist lining

 

[haochen]

 

[lolostar95]

now in the question about the function of muscles in the villi i wrote that the muscles will respire to supply energy which is needed for the process of active transport .......is it correct or wrong ???

 

[haochen]

dunno
sm1 ??

 

[PUSHPAK1321]

The right answer is that muscles allow the villi to move around close in contact with the nutrients , this will reduce diffusion distance therefore increase rate of diffusion .

Does'nt make sense at all muscles are always thick, so they increase the distance, it has definitely to do with the contraction and transport.

 

[haochen]

yeah

 

[Walid05]

get A in all papers and you'll get an A*

you have to get high A's in 3 papers to get the star

I know someone who got 3 A's in all papers and got an A in the total
because his A's where low

 

[Dooouuu]

oh guys i expect in paper 3... 55/80 and paper 6 .. 30/40.................what shall i get >??

 

[Dooouuu]

get A in all papers and you'll get an A*

you have to get high A's in 3 papers to get the star

I know someone who got 3 A's in all papers and got an A in the total
because his A's where low

high A means above the half of the marks to get A ??... or it have another calculations ?

 

[EmanAkhuZeina]

what you are saying is completely false
A-B=diff
diff+A=A*
want to check more contact british council in ur area

 

[seemo1995]

The right answer is that muscles allow the villi to move around close in contact with the nutrients , this will reduce diffusion distance therefore increase rate of diffusion .

Does'nt make sense at all muscles are always thick, so they increase the distance, it has definitely to do with the contraction and transport.

the right answer is that the muscles help move the lymph in the lacteal since contractions of the muscles will squeeze the lymph (btw this is exactly the same like a question in June 2010 but in a different style !!!

 

[lolostar95]

what you are saying is completely false
A-B=diff
diff+A=A*
want to check more contact british council in ur area

are u sure from where did u get this info ..... ??? I WISH IF THIS WAS TRUE

 

[beroo1995]

how are you saying its prestalisis ,I think that lymph which is inside the villus (lacteal) only absorbs fatty acids and glycerol which were already digested in small intestine so I wrote it is for respiration to provide energy and for contraction and relaxation
and hey I heard about that
A-B=diif
A+diff=A*
dont you think it would be easier for them to write it in the grade therehold ,,instead of just "A* is not determined at a lvl of an individual component 8)