Leaving Cert Biology | Masterclass | How to Approach the Biology Paper.

The video starts by outlining the three units of the Biology course: Unit 1 (Scientific Method, Food and Biomolecules, Ecology), Unit 2 (Cell Structure, Biochemistry, Enzymes, Photosynthesis, Respiration, Diffusion, Osmosis, Cell Division, Genetics), and Unit 3 (Microbiology, Plants, Body Systems). It then details common exam terms such as 'Define', 'Function', 'State', 'Explain', 'List/Give', 'Outline/Short Note', 'Describe', 'Distinguish Between', 'Name', 'Why', and 'Draw a Labeled Diagram', emphasizing what is expected for each type of question and providing examples.

The paper is divided into three sections (A, B, C) with a total of 400 marks and a three-hour duration. The marking is not percentage-based but falls into grade ranges (H1 to H8). The speaker advises students to use the first five minutes to read the entire paper, the next five minutes to select questions, and the last five minutes to review answers. Tips for drawing diagrams are also given, stressing the use of a good pencil, proper labeling, and making the diagrams large and clear.

Section A comprises seven short questions, with the best five counting towards 100 marks (30% of the paper). There must be two questions from Unit 1, two from Unit 2, two from Unit 3, and a seventh question that can be from any unit but often comes from Unit 3. Students are advised to answer all seven questions, keep answers short and concise, maintain neatness, and practice past papers. No more than 30 minutes should be spent on this section.

Section B covers experiments (questions 8, 9, and 10), accounting for 15% of the paper. Students are required to answer two questions, but answering three is acceptable, with the best two being chosen. Question 8 typically covers food tests, ecology, microscopes, and DNA isolation. Question 9 focuses on enzyme experiments, photosynthesis, osmosis, and alcohol production by yeast. Question 10 includes investigations into leaf growth, dicot stem examination, heart dissection, exercise effects on pulse rate, growth regulators, and germination. Advice for describing experiments includes drawing labeled diagrams, describing controls, detailing procedures, comparing results, and emphasizing repeatability. Like Section A, a maximum of 30 minutes is recommended.

Section C consists of questions 11 to 17, with each question worth 60 marks, making up 65% of the paper. This section offers significant choice, especially in questions 16 and 17, which have parts A, B, C, and D, requiring students to answer two, but allowing them to answer more for the best two to be picked. One question must be from Unit 1, two from Unit 2, three from Unit 3, and a seventh from any unit. Students should dedicate two hours to this section, spending no more than 30 minutes per question. Key advice includes reading questions carefully, using a black pen, starting each new question on a new page, answering precisely what is asked (avoiding rambling), using keywords, and managing time by moving on if a question takes too long, leaving space to return later.

Diagrams are vital for recording information and revision, even if the student is not an artist. They should be large, well-labeled, proportional, and drawn with a pencil without coloring or shading. Examiners first check if the diagram resembles what it's supposed to represent, then assess the accuracy of labels. Graph questions are guaranteed to appear and marks are easily earned. Students should use graph paper, clearly label X and Y axes with units, plot points accurately without a ruler (for biological variation), and use different symbols or lines for multiple data sets. Graphs should not be extended beyond plotted points.