2018 Eukaryotic Cell Structure & Cell Membrane MCQ QP+MS.pdf

2018 Eukaryotic Cell Structure and Cell Membranes MCQ2018 / H2 / ACJC PRELIM / P1 Q11The electron micrographs show two different types of cells (not shown to scale). 1234Cell A 576Cell BWhich row matches the structures to their correct function?Structure in cell AStructure in cell BFunctionA37Provide energy for the cellsB15Maintain the shape of the cells C26Photosynthesise

D46Secrete proteins2018 / H2 / ACJC PRELIM / P1 Q22The plasma membrane is the cell’s protective barrier as it prevents foreign molecules from entering the cell. However, in drug research experiments, foreign molecules such as drugs or short DNA fragments need to be transported into the cell. Electroporation is a technique used to increase the permeability of the membrane transiently by treating the cell with short electrical pulses.Which statement most likely explains how electroporation works?AThe short electrical pulses denature the membrane proteins, allowing foreign molecules to pass through.BThe short electrical pulses cause the foreign molecules to be attracted to the surface of the membrane.CElectricity increases the hydrophobic nature of foreign molecules, allowing them to pass through the hydrophobic core of the phospholipid bilayer. DElectroporation causes the phospholipids to move apart to create pores for foreign molecules to pass through.2018 / H2 / ACJC PRELIM / P1 Q13Which row matches the descriptions of biological molecules to where they are found? 1Polymer of glucose molecules linked by β-1,4 glycosidic bonds to form a straight chain2An unbranched and helical polymer of glucose molecules linked by α-1,4 glycosidic bonds3 An amphipathic, phosphate-containing molecule123ACell wall of eukaryotes onlyStorage granules in animal cellsPlasma membrane of prokaryotes and eukaryotesBCell wall of prokaryotes and eukaryotesStorage granules in plant cellsPlasma membrane of eukaryotes onlyCCell wall of prokaryotes and eukaryotesStorage granules in animal cellsPlasma membrane of prokaryotes onlyDCell wall of eukaryotes onlyStorage granules in plant cellsPlasma membrane of prokaryotes and eukaryotes

2018 / H2 / AJC PRELIM / P1 Q14The electron micrograph shows cells from an aquatic plant. Which of the following about structures 1 to 4 is correct?contains DNAcontains rRNAcontains tRNAcontains proteinsA1, 222, 3, 41, 4B1, 3, 42, 32, 43, 4C2, 32, 3, 43, 41, 2, 3, 4D23, 41, 31, 2

2018 / H2 / ACJC PRELIM / P1 Q45The diagram shows the cell surface membrane of an actively respiring liver cell placed in a solution of glucose with a lower water potential than that of the liver cells. Arrows P, Q, R and S show the movement of various particles across the cell surface membrane. Which arrows correctly reflect the movements of oxygen, carbon dioxide, glucose and water across the surface membrane of this cell?OxygenCarbon dioxideGlucoseWaterAPQRSBQSRSCQSPPDRSPR2018 / H2 / DHS PRELIM / P1 Q16An electron micrograph of a cell is shown below.

Match the organelles E, F, G, H and J associa