Q. 2 The figure below represents the beginning of an experiment to demonstrate osmos
in a living cell using yam tissue
0.4
Beg
Living yam cup
Sugar solution
-Water trough
Water
End
(a) Draw and label a diagram to illustrate what would be observed if the set-up
allowed to stand for 24 hours. > Homework
15th Sepelembe w
(b) Explain the principle involved in the process.
(c) What does the yam cup represents?
(d) How would you set up a control of the experiment above?
(e) Give one example of the osmotic process in each of the following:
(i) Flowering plants (ii) Humans
Give me one example of osmosis process in human

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity