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Which of the following statements is correct?


A) Lysosomes produce acid hydrolases
B) Peroxisomes produce acid hydrolases
C) Peroxisomes produce fatty acids
D) Lysosomes produce both catalase and oxidase

Correct Answer

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80S eukaryotic ribosomes consist of a large ________S subunit and a small ________S subunit.


A) 50; 30
B) 60; 20
C) 60; 40
D) 45; 35

Correct Answer

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FACS is optimally suited to separate all of the following except


A) cells with different subsets of surface proteins
B) stem cells from non-stem cells
C) pig RBCs from human RBCs
D) bacteria from animal cells

Correct Answer

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Select the INCORRECTLY associated cytoskeletal protein and function.


A) Microfilament: Cytoplasmic streaming
B) Intermediate filament: Anchoring cellular structures in fixed positions
C) Microtubule: Locomotion, directed vesicle transport
D) Centriole: chromosomal segregation
E) all associations are CORRECT

Correct Answer

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Mitochondria share all of these features with bacteria except


A) they are similar in size to a bacteria
B) they contain 70S ribosomes
C) they undergo mitosis
D) they have cytochromes of the electron transport chain imbedded in a structural membrane

Correct Answer

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Which essential cytoskeletal component can modify cell shape?


A) Actin microfilaments
B) Intermediate filaments
C) Microtubules
D) Centrioles

Correct Answer

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Multicellular organisms arose due to ________.


A) a substantial rise in oxygen levels in earth's atmosphere
B) a substantial rise in CO2 levels in earth's atmosphere
C) the transition from aquatic to terrestrial environments
D) extinction of unicellular organisms

Correct Answer

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Which cell described below is more efficient at carrying out diffusion?


A) A cell with a surface area of 54µm2 and volume of 27µm3
B) A cell with a surface area of 6µm2 and volume of 1µm3
C) A cell with a surface area of 24µm2 and a volume of 8µm3
D) A cell with a surface area of 96µm2 and a volume of 64µm3

Correct Answer

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Select the INCORRECTLY associated eukaryotic organism and type of vacuole.


A) Animal: Food vaculoe for nutrient storage
B) Plant: Turgor pressure regulating vacuole
C) Protozoan: Contractile vacuole for elimination of excess water
D) Plant: Contractile vacuole for elimination of excess water

Correct Answer

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Which biomolecules are produced in the smooth endoplasmic reticulum (SER) ?


A) Proteins
B) Glycoproteins
C) Nucleic acids
D) Phospholipids

Correct Answer

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