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CSEC>> Biology

Exam tips
Monacia Williams, Contributor

Here we are together again. Those of you who have already started exams, I hope you have been doing well and that as you continue your efforts will get even better.

Last week, I left you with some questions to help with your revision; I hope you made an attempt at answering them. If you did, you will now be able to compare your answers with mine. However, before I provide you with these answers, here are some tips to help you with your performance in the exam.

Tips

You need to remember that:

  • Paper 01 consists only of multiple-choice items.
  • Paper 02 consists of three short-answer and three essay-type questions.
  • All the questions are compulsory; there are no options!
  • In many instances the short-answer questions can be challenging and if you are not careful you might find yourself using up more than the allotted time in answering these questions. I recommend what many of my students have found to be a useful strategy. Answer one short answer and then one essay-type question, this way you will safeguard yourself from spending too much time on the short-answer section, hence not leaving enough time to answer the essays.
  • You also need to remember that the lines allotted for the answers to the questions are adequate for the required answer. Do not repeat the question in your answer; it is not necessary and only takes up space that will be needed for the answer.
  • You must always read the introductory preamble to each question. It usually contains valuable information.

Now, let us answer the questions.

I will start with the answer for the second question.

Question ii

1. Smoke emission produces soot, cigarette produces tar. Tar breaks down the alveoli, while soot covers the surface area of the leaf.

2. Breakdown of the alveoli reduces the surface are available for gaseous exchange, while coverage of the leaf by soot blocks the stomata hence reducing the leaves' ability to exchange gases.

Question iii

Cigarette smoking can cause many pulmonary diseases such as bronchitis and emphysema and aggravate others such as sinusitis and asthma. It is also a leading cause of lung cancer. These diseases not only affect the smoker, but can affect those who are within the vicinity of the smoker. Increase in the incidences of the diseases would increase the government's expenditure on public health so it would be in the government's best interest to ban smoking in public places to prevent this from happening.

Question i

Well, how did you do?

Back to work now! From left: Michelle McFee, Johann Cover and Mickelle Hughes, past students of Knox College in Spaldings, Clarendon, take a break from their Labour Day project at the institution on Saturday, May 23.
- Nashauna Drummond/Lifestyle Coordinator

Monacia Williams teaches at Glenmuir High School.

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