Okay, when in the Biology lab practical, we had been asked to do an experiment about transport across membrane. We divided into two experiments; in plant cell and animal cell. Get ready for the explanation.
Let's move to plant cell first. In this experiment, we must carry out the osmotic pressure of potato cells. So, of course we need a fresh potato. We prepared 15 potato strips and ready for to be weight. The result of the mass, Alin is the one who recorded in her book. Then, we prepared five boiling tubes containing different sucrose concentrations. Next, each of them, we put 3 potato strips to be equal and waited for 30 minutes.
In the meantime waited for the potato strips to react, we pursue to the second experiment. In the next experiment, we needed to carry out the haemolysis and crenation of erythrocytes. Sounds professional, right? To accomplish this experiment, we need a donor of the blood. Sabariah, or Sue, generously giving us her blood, despite being afraid of the needle sterilized lancet to prickle her finger later. Before we started prickled her finger that had been wiped with alcohol, she looks a bit scared. She even not dared to look up her finger. The one who carried the job to prickle her finger is me. After she recited some du'a, the process of it went smoothly. Her blood also came out pretty good, even though her face looks really pale. She almost fainted. The blood then dropped into each of the prepared test tube and left for a few minutes. After that, we observed the blood. The teacher complaint that the blood looks pretty. She proudly said that it's hers. Yeah, she deserves that praises.
Remember our first experiment? After the 30 minutes are over, we weighted it back for recorded. So that's how our experiments today are ended. Thanks for reading allthough it's boring to the maxi. Hehe ;))
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