AQA A Level · Biology 7402
5 multiple-choice questions marked as you go, and 1 written questions with worked solutions. All on Cell structure.
A student observes a eukaryotic cell using a transmission electron microscope and identifies a double-membrane bound organelle with internal folds called cristae. Which of the following describes a structural feature of this organelle that supports its function?
A sample of liver tissue is homogenized in a cold, isotonic, buffered solution and subjected to differential ultracentrifugation. In which order will the organelles be recovered in the pellet as the centrifugal speed is increased?
A newly identified pathogen is found to have the following characteristics: it contains a single-stranded RNA genome, a protein capsid, and lacks both a nucleus and ribosomes. How should this pathogen be classified?
A student observes a bacterial cell and a human cheek cell under a microscope. Which of the following features would be found only in the bacterial cell?
A student uses a transmission electron microscope (TEM) to study a cell and observes a structure with a single outer membrane that contains many hydrolytic enzymes. Which organelle is being observed and what is its role in the immune response?
Eukaryotic cells contain various membrane-bound organelles with specialized functions. Describe the structural relationship between the Golgi apparatus and Golgi vesicles, and explain how their coordination is necessary for the secretion of functional proteins from the cell.
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