the stuff in the capillary(large proteins, glucose, small molecules etc) the stuff outside of the capillary is the tissue fliud when its forced out by a high hydrostatic pressure through the gaps in the capillary
hey there i was just doing the 2010 paper.. so you know the equation: mag=size of image/ size of object
when you measure the size of image x-y using your ruler in cm, convert it into um by x10000 then for the size of object use the 20um provided and divide that by size of image e.g
mag= 4.9cm x 10000 / 20 = 2450um
and the answer is anything between 2350 - 2500... hope ive helped!! D
I converted the cm and the um into meter, (x10^-2cm) and (x10-6um) but when i measure from X to Y I get 2.2cm, am i measuring it wrong or my ruler is trolling me .
(4.9 x 10^-2) / ( 20 x 10^-6) = x2450
so my units are right but my measurment of the image is not right..
Right so when talking about circulatory system of a mammal do we talk about: Small surface area to volume ratio arteries, veins, capillaries, arterioles hepatic veins and arterys renal vein and artery is this right ???!!!
Yes, insects have air filled pipes called trachea for gas exchange. Air moves into the trachea through pores on the surface called spiracles. Then oxygen travels down the diffusion gradient towards the cells. The trachea branch of into smaller tracheoles which go to individual cells and have thin permeable walls so gas (oxygen and co2) can be exchanged quickly!
Anyone got a list of 5/6 mark questions? Any predictions? For Meiosis - crossing over (of equivalent portions of chromotids) that's in M1, but when does Independant segregation occur, is than in m2? Also what is independant segregation is it just that chromotids go on into different gametes producing variation?
what is the lymphatic system and how does it lnk in with tissue fluid and the circulatory system?
Basically drains off excess tissues fluid! as outside of the capillary the cells cannot hold much tissues fluid so it gets drained off by the lymph nodes. That is all you need to know about it.