I thought the molecules went from a dilute to a concentrated solution in osmosis??? I'm confused
Yeah, you're right. The molecules move from a dilute (in which there is a high concentration of water molecules) to a more concentrated (in which there is a low concentration of water molecules) solution. Kind of confusing but makes sense when you actually think about it!?
hiiiii i briefly know about mitosis and meiosis, but ALWAYS go blank when explaining it, does anyone know if they can explain it to me pleaaaase ^_^
Mitosis: -Used for growth and repair -Includes only one division -Produces two daughter cells that are identical to the parent cell
Meiosis -Used for making gametes -Includes two divisions -Produces four daughter cells that are different from the parent cell (as they have half the number of chromosomes)
Yeah β¨ Do you have any predictions for the six markers?
For this exam I don't, like theres no specific thing they could ask for, it could literally be anything, guesses would be
B4: The transect, identification key, etc.. or maybe uses of glucose from photosynthesis, or uses of energy from respiration, or products made from fermentation, or places where anaerobic respiration occurs (bacterial cells in puncture wounds for example)
B5: Protein synthesis, mitosis/meisos, stem cells,
B6: Memory model maybe (??), reflex arc, not really sure about this one...
For this exam I don't, like theres no specific thing they could ask for, it could literally be anything, guesses would be
B4: The transect, identification key, etc.. or maybe uses of glucose from photosynthesis, or uses of energy from respiration, or products made from fermentation, or places where anaerobic respiration occurs (bacterial cells in puncture wounds for example)
B5: Protein synthesis, mitosis/meisos, stem cells,
B6: Memory model maybe (??), reflex arc, not really sure about this one..
i think it will be fermentation / respiration, mitosis and meiosis and memory model too
i believe that you can ferment the carbohydrates in animal/plant waste which produces co2 + methane, then you burn the methane to cook/heat/whatever...
do you guys think grade boundaries will be super high this year? also, does anyone know if theres any way to access the 2014 paper?
2014 paper has been posted on this forum. and i honestly think the grade boundaries will be lower and the test will be harder. Because 1) the test was easy/high grade boundaries last year, and 2) the B123 exam was very easy...
2014 paper has been posted on this forum. and i honestly think the grade boundaries will be lower and the test will be harder. Because 1) the test was easy/high grade boundaries last year, and 2) the B123 exam was very easy...
Thank you! Yeah, I'm retaking my Biology and I sat the one last year, just that I don't remember it well... B123 this year was brilliant though