Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter5: Membranes And Transport
Section: Chapter Questions
Problem 5TYK: A driving ion moving through a membrane channel in one direction gives energy to actively transport...
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Please answer #13. I’m having trouble with it
Transcribed Image Text:10. Explain the role of osmosis in controlling the movement of water across the plasma membrane.
Osmosis changes the amount of water that can go through a membrane into a cell.
11. Describe the differences among hypotonic, isotonic, and hypertonic solutions in terms of water
movement.
Hypotonic: less solute; causes cell to draw in more water. Hypertonic: more solute, causes cell to
dehydrate. Isotonic: nothing fun happens
12. Describe carrier-mediated transport.
Transports proteins in membrane carry solutes into or out of cell
13. Compare facilitated diffusion, primary active transport, and secondary active transport.
14. Describe the structures and functions of the cytoplasm, cytoskeleton, nucleus, nucleoli,
ribosomes, rough and smooth endoplasmic reticula, Golgi apparatus, lysosomes, peroxisomes,
mitochondria, and centrioles.
Chapter 4: Genetics & Cellular Function
1. Identify the parts of a nucleic acid & nucleotide
2. Describe the central dogma of biology
3. Name the 5 nitrogenous bases; know the difference between the nitrogenous bases in DNA vs.
RNA
4. Explain the base pairing rules of the nitrogenous bases/nucleotides.
5. Describe the relationship between chromatin and chromosomes
6. Briefly describe what a gene is (with respect to a molecule of DNA)
7. Define genome; know how many chromosomes humans have
Be able to read and explain the genetic code.
9. Describe the processes of transcription and translation.
8.
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Molecules can move across cell through a variety of different processes.
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