Biology 2015 E.C - 2023 G.C 2014 E.C - 2022 G.C Chemistry 2015 E.C - 2023 G.C Civics and Ethical Education 2015 E.C - 2023 G.C English 2015 E.C - 2023 G.C Geography 2015 E.C - 2023 G.C History 2015 E.C - 2023 G.C Physics 2015 E.C - 2023 G.C Biology - Grade 12 -2023 G.C Grade 12 students can now access their exam results by visiting the Educational Assessment and Examination Services (EAES) website. Previous123456789101112131415161718192021Next 5. Which one of the following eye structures is correctly matched with its function? Pupil - serves as the eye's protective outer layer Iris - controls the amount of light entering the eye Cornea - provides nutrition to the retina Choroid - bends the light into the eye 6. Which one of the following descriptions of proteins is correctly matched with its function in a cell membrane? Peripheral protein - anchor integral proteins to the cytoskeleton Glycoprotein- reduces the fluidity of the membrane Channel proteins - larger molecules can pass through them Carrier proteins - specific ions can pass along them 7. In the aerobic cellular respiration Krebs cycle takes place in the cytoplasm. glycolysis takes place in the mitochondria. electron transport chain takes place in the cytoplasm. pyruvate enters into the mitochondria for further stages. 8. Suppose a hypothetical cell of 15% solute concentration is put in a beaker containing 90% water and 10% solute. In which way will the water move? From the cell to the beaker From the beaker to the cell Both into and out of the cell Both into and out of the beaker 9. Which one of the following is correct about transport of substances across the cell membrane? Simple diffusion - large particles transported through channel proteins Facilitated diffusion - particles move from high water potential to lower one Passive transport particles require energy in the form of ATP to derive the transport Active transport - particles move from low to higher concentration using carrier proteins Previous123456789101112131415161718192021Next We have provided these questions from previous years grade 12 Ethiopian Secondary School Leaving Certificate Examination (ESSLCE) exams with the sole purpose of assisting students in their studies and preparations for upcoming exams. Please be aware that these questions are not indicative of future exam content. Good luck with your studies!