2024 Biology Paper 2 Exam Revision Jam start

hello guys welcome to this biology Revision in today's biology revision want us to look at this interesting question which is coming from different topics actually one of the topics it is coming from is classification right so let's read through the questions then we'll start answering afterwards so we have question one which reads figure 1.1 shows three different types of organisms labor and so we have different types of organisms this one is labeled this one this one then Roman numeral one say identify three organisms shown in Figure 1 one above so you need to identify what type of organism is organism organism and organism then Roman numeral 2 says classify the organisms identified in part one according to the kingdoms so now you classify these organisms once you identify them you classify them into the kingdom they belong okay so let's move then part one says state two organisms which might bring about decay of organic matter so you need to give two organisms here then part two says name one disease caused by organism okay then we need to move then question number two says figure 2.1 shows the structure of mamalian Spam okay so this figure 2.1 here shows the structure of aan SP okay now part one say identify the parts labeled this part lab and this part lab okay then part two says explain the function of the part labeled so we need to explain the function of the part labeled this part here then says what substance produced by the enable the SP to swim in the female reproductive tract okay then see part one says explain why only one SP falzes the ovam then part two says distinguish between spem and an ovam okay so let's start answering the question right away so this one says figure 1.1 shows three different types of organisms and then part one says Identify the three organisms shown in figure 1.1 Above So organism here it is ropas okay you must understand that this one is ropas type of fungus often referred to as braid mode then this one here you know it this one is spider okay it it is also called an arakan then this here is called bacum also single cell organisms or microorganism so this one is Riso spider then this one is bacum or bacteria then part two says classify the organisms identified in part one so we now classify these organisms which have been identified already here according to their kingdoms so we need to put the kingdom to which the rise of pass belong and also the spider belong and also the belong so you must know that the ROP pass here belong to the kingdom known as the fungi okay then the spider Belong To The Kingdom Cod Ania then the bacum Belong To The Kingdom called bacteria okay then let's move to part one says state two organisms which might bring about decay of organic matter so we need to state two organisms which might bring the decay of matter so one organism is actually the fungi such as ropas okay so the fungi such as ropas can bring about Decay so here we have explain to fungi play role or crucial role in decomposing organic matter breaking it down into simpler substances then another one is actually bacteria so bacteria is another organism that bring about decay of organic matter I've explained to say bacteria are essential decomposers that break down organic matter and recycle nutrients back into the ecosystem then part two says name one disease caused by organism so organism was Rath so what disease is caused there are many so you could say black fungus infection or arthritis foot or ring wor then we move on to part two or question two let's move on to question two which says figure 2.1 shows the structure of aarian spem so this is the structure then they saying part one identify the parts labeled and so this part had initially looked at it as Acro acrosome but again it looks like it is cell membrane so this one is cell membrane so would change here and put cell membrane so here is cell membrane this part here then this part here is the nucleus okay then part two says explain the function of the part labeled so this part from here up to here it is tail so we are going to say that is tail or it is also known as flangel so the tail or the fulum of the sperm is responsible for its motility or Mobility movement okay that is the function it it enables the sper to swim through the female reproductive tract to reach the to reach and fertilize the egg so that's the function of the tail or the flum so the tail of flam of the sperm is responsible for its motility it enables the sperm to swim through the female reproductive tract to reach and fertilize the egg then they are saying white substance produced by the cix enables or enable the sper to swim in the female reproductive tract so what substance produced by the cix enable the sper to swim in the female reproductive tract so the the substance produced can either be called cervical fluid or cervical mucus then we move move to part part one says explain why only one sper falzes the ovam so the answer could be that the first sper to penetrate the egg the egg cells outer membrane initiates chemical reactions that prevent other sper from entering so this process ensures that the resulting zygote has the correct number of chromosomes half from the sper and from the egg yeah so when one sper fertilizes the egg it does what it ini it initiates chemical reaction that prevent other sperms from entering so this process ures that the resulting zygote has the correct number of chromosomes half should come from the spem then half from the egg then distinguish between sper and an ovam so here you have to say sper are produced in vast number while only one of them is typically released during mro cycle so this is one difference another difference we can see sper have for motility while the ovam does not have you can also say that SP sper cell is smaller than an over yeah so yeah we have come to the end of this quick revision hope you have gained some insight here for now bye