Chapter 5 Checkpoint Quiz Due No due date Points 33 Questions 33 Time Limit None Allowed Attempts Unlimited Instruc ! ons ! Correct answers are hidden. Submitted Sep 26 at 6:48am This quiz is for practice. Please take it as many times as you would like! Take the Quiz Again A ! empt History Attempt Time Score KEPT Attempt 2 4 minutes 33 out of 33 1 / 1 pts Question 1 Which best describes the structure of a cell membrane? proteins between two bilayers of phospholipids proteins embedded in a bilayer of phospholipids a bilayer of protein coating a layer of phospholipids cholesterol embedded in a bilayer of phospholipids 1 / 1 pts Question 2
The synthesis of ATP from ADP and P stores energy in a form that can drive cellular work involves the hydrolysis of a phosphate bond transfers a phosphate, priming a protein to do work is an exergonic process 1 / 1 pts Question 3 Faciliatated diffusion across a membrane requires_______and moves a solute________its concentration gradient. transport proteins ..... up (against) transport proteins ..... down energy and transport proteins .... up energy and transport proteins...down 1 / 1 pts Question 4 When an enzyme catalyzes a reaction, it raises the activation energy of the reaction. it acts as a reactant.
it is used once and discarded. it lowers the activation energy of the reaction. 1 / 1 pts Question 5 The process of a white blood cell engulfing a bacterium is phagocytosis. receptor-mediated endocytosis. osmosis. pinocytosis. 1 / 1 pts Question 6 According to ________, energy cannot be created or destroyed. the second law of thermodynamics Aristotle's first principle the first law of thermodynamics the third law of thermodynamics 1 / 1 pts Question 7
Which of the following statements about the ATP molecule is true ?
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