MSN 570 Quiz 1 | Questions and Answers | Fall 2025/2026 Update | 100% Correct – USU.

MSN 570 Quiz 1 | Questions and Answers | Fall 2025/2026 Update | 100% Correct – USU. Question 1 options: True False Question 2 (3.33 points) How are potassium and sodium transported across plasma membranes? Question 2 options: 1) By passive electrolyte channels 2) By coupled channels 3) By adenosine triphosphate enzyme (ATPase) 4) By diffusion Question 3 (3.33 points) Most of a cell’s genetic information, including RNA and DNA, is contained in the: Question 3 options: 1) mitochondria. 2) ribosome. 3) nucleolus. 4) lysosome Question 4 (3.33 points) Which mode of chemical signaling uses blood to transport communication to cells some distance away? Question 4 options: 1) Paracrine signaling 2) Autocrine signaling 3) Neurotransmitter signaling 4) Hormone signaling Question 5 (3.33 points) Which cell component is capable of cellular autodigestion when it is released during cell injury? Question 5 options: 1) Ribosome 2) Golgi complex 3) Smooth endoplasmic reticulum 4) Lysosomes Question 6 (3.33 points) Which of the following best describes the cellular function of metabolic absorption? Question 6 options: 1) Cells can produce proteins. 2) Cells can secrete digestive enzymes. 3) Cells can take in and use nutrients. 4) Cells can synthesize fats. Question 7 (3.33 points) How do free radicals cause cell damage? Question 7 options: 1) By stealing the cell’s oxygen to stabilize the electron, thus causing hypoxia 2) By stimulating the release of lysosomal enzymes that digest the cell membranes 3) By transferring one of its charged, stabilized atoms to the cell membrane causing lysis 4) By giving up an electron, causing injury to the chemical bonds of the cell membrane