BIOL 101 Quiz 2 Submissions - Week 2 Quiz. 100% Score

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BIOL 101 Quiz 2 Quiz Submissions - Week 2 Quiz Attempt 1 Submission View Your quiz has been submitted successfully. AMINO ACIDS Question 1 Why are amino acids called “amino acids? They are si... ngle molecules that contain both an amine group and a carboxylic acid group Question 2 Which of the following macromolecules are made from amino acids? proteins Question 3 What level of protein structure is associated with the sequence of amino acids? primary Question 4 How are most carbohydrates used in the human body? used as a source of energy Question 5 Which of the following carbohydrates is used to store energy in animal cells? cellulose starch hemi-cellulose glycogen LIPIDS Question 6 What type of molecule is shown here? lipid nucleic acid carbohydrate protein NUCLEIC ACIDS Question 7 Where is most of the DNA found in the eukaryotic cell? golgi mitochondria nucleus ribosomes DENATURATION Question 8 Why does heating up a protein such as an enzyme cause it to lose function? because it burns up because it loses its shape because it works best at low temperatures because it shows they are contaminated PHOSPHOLIPIDS Question 9 What property of the phospholipid bilayer allows proteins to move laterally in the membrane? phospholipids and proteins are attracted to each other phospholipid molecules are not covalently bonded to each other phospholipids are attracted to each other by opposite charges proteins attract each other with opposite charges CELL MEMBRANES Question 10 A set of erythrocytes is placed in a beaker of 0.9% NaCl. Nothing appears to happen to the cells. Why? 0.9% NaCl is hypertonic to the cells. 0.9% NaCl is isotonic to the cells 0.9% NaCl is hypotonic to the cells Sodium blocks the movement of water COMPARING EUKARYOTES & PROKARYOTES Question 11 Which if the following are found in eukaryotic cells but not prokaryotic cells? Golgi body Question 12 Which of the following does a prokaryotic cell have that an animal cell does not? cell wall ribosomes vacuole DNA EUKARYOTES Question 13 Which of the following is not a component of the endomembrane system? mitochondria Golgi apparatus endoplasmic reticulum lysosome central vacuole OSMOSIS & DIFFUSION Question 14 If you place a dialysis tubing permeable only to water filled with 30% sucrose solution into a beaker filled with a 10% solution of sucrose, what would you expect? water flows into the dialysis tubing Question 15 What is the diffusion of water through a selectively permeable membrane called? pinocytosis facilitated diffusion active transport osmosis phagocytosis ACTIVE TRANSPORT Question 16 Sodium ions are more highly concentrated outside the cell, in the extracellular fluid. Which process would be used to return any sodium ions that leaked into the cell back to the extracellular fluid? osmosis active transport facilitated diffusion simple diffusion EUKARYOTIC ORGANELLES Question 17 What is the function of the endoplasmic reticulum in the eukaryotic cells? modifies proteins, synthesizes lipids. Question 18 What is the function of the mitochondria in the eukaryotic cell? protein synthesis directs the synthesis of ribosomes and proteins organizing center of microtubules in animal cells production of ATP, cellular respiration ANTIBIOTICS AND PROKARYOTIC CELLS Question 19 An ideal antibiotic damages only bacterial cells but not human cells. Which of the following cellular structures would be a good target for antibiotics? cell wall Question 20 What is the concern with overuse of antibiotics? the patient will become antibiotic resistant viruses will become antibiotic resistant. bacteria will become antibiotic resistant. the antibiotics will degrade Attempt Score: Overall Grade (highest attempt): [Show More]

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