cell bio exam study(2)

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Cleveland State University *

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308

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Biology

Date

Feb 20, 2024

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1

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Exam 1 . Which of the following sequences correctly lists the hierarchical nature of cellular structures, from smallest to largest? a. Macromolecules, organic molecules, supramolecular structures, organelles, cells b. Organic molecules, supramolecular structures, macromolecules, organelles, cells c. Organic molecules, macromolecules, supramolecular structures, organelles, cells d. Organic molecules, macromolecules, organelles, supramolecular structures, cells . Which of the following is NOT a structural polysaccharide? a. [Chitin b. [Cellulose c. Peptidoglycan d. Glycogen . A scientist is examining motile protozoa. He wishes to determine their direction of movement. Which of the following microscopic techniques is least likely to be used to view these cells? a. Fluorescence microscopy b. [Light microscopy| c. Electron microscopy d. Differential interference contrast microscopy . While synthesizing a new blug{pigment) a chemist notices that the new compound congregates between an aqueous (water) environment and a hydrophobic environment. When added to a mixture of oil and water, the pigment creates a blue ring around the droplet of oil. Which of the following statements best describes this new pigment? a. The pigment is hydrophilic and will not form hydrophobic bonds with the oil b. The pigment is amphipathic, having polar and nonpolar regions c. The pigment is neither polar or nonpolar, but is polar d. The pigment is a polar molecule and is forming hydrogen bonds with both the water and oil molecules. . Which of the following is smallest? a b. A ribosome C. mitochondrion)| d. protein | e. An amino acid . Melvin Calvin and his colleagues used which of the following to deduce the steps in the Calvin Cycle? a. Ultracentrifugation b. Negative staining c. Radioisotopes d e . |Drosophila melanogaster) Electron microscopy Scanning electron microscopy (SEM) is especially suited to a. Observe living specimens b. Observe internal morphology of tissue c. Creating a sense of depth d. Examine internal cellular structure e. BothAandB . Cell biology emerged from which of the following field of biology? a. Genetics b. Cytology
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