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Sophia_Human_Biology_Milestone_1 (A GRADE) - Ashford University | Sophia_Human_Biology_Milestone_1 (A GRADE)

Sophia_Human_Biology_Milestone_1 (A GRADE) - Ashford University Sophia_Human_Biology_Milestone_1 (A GRADE) You passed this Milestone 18 questions were answered correctly. 5 questions were answered incorrectly. 1 Which of the following statements about glycolysis is true? ● It is the last stage of cellular respiration. ● It utilizes a molecule of glucose to produce three ATP. ● It is an anaerobic process. ● Phosphorylation halts the process when ATP levels get too low. CONCEPT Glycolysis 2 How many turns of the Krebs cycle are required to break down one molecule of glucose? ● Four ● Three ● One ● Two CONCEPT Krebs Cycle 3 Which organelle is mainly responsible for synthesizing proteins? ● Ribosomes ● Golgi body● Smooth ER ● Nuclear envelope - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15Which of the following is a characteristic of the nucleus? ● It is not found in eukaryotic cells. ● It houses the cell's DNA. ● It is a pocket in the cell's plasma membrane that houses DNA. ● It is a double membrane that surrounds the nuclear envelope. CONCEPT Nucleus 16 Which of the following is part of a nucleotide? ● Proteins ● Amino acid ● DNA ● Sugar CONCEPT Nucleic Acids 17 Where is cytosol found? ● Inside the nucleus ● Surrounding the cell ● Between the two layers of the plasma membrane ● In the cytoplasm CONCEPT Cytoplasm 18 Select the statement that is TRUE regarding metabolism.● In catabolism, complex carbs, proteins and other molecules are disassembled. ● In anabolism, polysaccharides are turned into monosaccharides. ● In anabolism, complex carbs, proteins and other molecules are disassembled. ● In catabolism, glucose is combined to form a complex carbohydrate. CONCEPT Metabolism 19 Which of the following characteristics is shared by all organisms? ● Cycles of consciousness and sleep ● The ability to grow and reproduce ● Being made up of multiple cells ● Division into multiple sexes CONCEPT Organisms 20 At what level of protein structure do amino acids continue to twist and fold, forming a 3-D shape? ● Quaternary ● Secondary ● Primary ● Tertiary CONCEPT Proteins 21 What type of lipid is made up of a glycerol molecule and three fatty acid side chains? ● Triglyceride● Sterol ● Phospholipid ● Saturated fat CONCEPT Lipids 22 Which of the following sources of information is most credible? ● An article in the science section of a local newspaper ● An article in a popular magazine ● An article written for the school paper by a science teacher ● An article in a peer-reviewed journal CONCEPT Evaluate Information 23 What molecules in the cell membrane help move molecules from a low to a high concentration gradient? ● Diffusion pumps ● Transport proteins ● Vesicles ● Endocytosis CONCEPT Facilitated Diffusion

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