The Short Answers Comments document contains the ten (10) questions which are in the short answer question pool for Test 1. Canvas will randomly pull five (5) of those questions for each student to answer for the short answer portion of Test 1.
You can work on your answers before the test and copy and paste them into the Short Answer Portion of Test 1 or you can write them in during the time you have for the test. Each portion can only be taken once and is not reset, so make sure you have a reliable internet connection.
All answers must be thorough and written in sentences and paragraphs.
Please see the Comments document for specifics about how to answer the core concept questions (any question which deals with homeostasis, cell-to-cell communication, or flow-down gradients). Three points are earned for a beginning paragraph or paragraphs summarizing the core concept. If this is not included, three points are lost from the ten (10) possible.
Look at the document for some helpful hints about the content and style of the questions. I don’t discuss all of the questions, but I am very specific about many of them.
The questions are:
Unit 1 Objectives:
- Using at least one physiological example, explain the concept of homeostasis.
- Explain and provide examples of specificity, competition, and saturation in proteins.
- Explain the concepts of specificity, competition, and saturation as they relate to enzymes.
- Explain the fluid-mosaic model of the cell membrane.
- Compare osmolarity and tonicity.
- Compare simple diffusion, facilitated diffusion and active transport.
- Explain why cells need both channel and carrier proteins.
- Explain the concepts of specificity, competition, and saturation as they relate to carrier-mediated transport.
- Briefly outline the major components of the core concept of flow-down gradients.
- Briefly outline the major components of the core concept of cell-to-cell chemical communication.