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College Biology 1 Final Exam 2022
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College Biology 1 Final Exam 2022 General differences between eukaryotic and prokaryotic cells are? ANS:- Eukaryotic cells have membrane bound organelles, prokaryotic cells generally do not. ... Beta cells are cells in the human pancreas whose primary function is to produce and secrete the protein hormone insulin. A beta cell would contain? ANS:- An active Golgi apparatus. What is a reasonable explanation for why unsaturated fatty acids keep biological membranes fluid at lower temperatures? their tails, preventing tight packing of adjacent lipids. ANS:- Unsaturated fatty acids have kinks in What is not found in chloroplasts? ANS:- Thylakoids, DNA, Ribosomes and an electron transport proteins. What is found in plant cells, but not in animal cells? ANS:- Central vacuole. In a plant cell DNA is found where? ANS:- In the nucleus, mitochondria, and chloroplasts. What central structures grows out to the centrosome, and provides compression resistance for the cell ? ANS:- Microtubules. What cellular structures interact with myosin motor proteins to produce contraction in human skeletal muscles ? ANS:- Microfilaments. What molecules would you expect to move most quickly through the plasma membrane via passive diffusion (directly through the phospholipid bilayer)? ANS:- Oxygen (O2) What structures would most likely be associated with the cell-cell junction between a nerve cell and a muscle cell? ANS:- Gap junction. White blood cells engulf bacteria through what process? ANS:- Phagocytosis. What functions are not associated with membrane proteins? ANS:- Signal transduction, Enzymatic activity, Transport, and Phosphorilation of ADP to ATP. What is always true of a chemical reaction with a negative delta G? ANS:- The reaction is spontaneous. What is not true of the citric acid cycle? ANS:- 3 NADH are produced per pyruvate, 1 FADH2is produced per pyruvate and 1 ATP is produced per pyruvate. [Show More]
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