Unit 7 – Define osmosis , diffusion , hypotonic, isotonic

10 Jun Unit 7 – Define osmosis , diffusion , hypotonic, isotonic

Question
Lab Practical II Review Sheet

Unit 7:

– Define osmosis , diffusion , hypotonic, isotonic and hypertonic

– Be able to interpret what happens to a cell ( either plant or animal) when placed in hypotonic, isotonic or hypertonic solutions

– Be able to interpret what happens to a dialysis bag when placed in hypotonic, isotonic or hypertonic solutions ( experiment 6.2)

– Be able to identify from a picture whether a cell is turgid, has lysed or plasmolysed (plants in hypertonic solution).

– Identify the movement of solutes or water when a cell is placed in hypotonic, isotonic or hypertonic solutions

– Which molecules can cross a dialysis bag and the indicator used to identify whether a molecule passed or not ( experiment 6.3)

– Know that a dialysis bag and plasma membranes share the characteristic of selective permeability

– What are the factors that affect the diffusion rate ( temperature and size of the molecule)

Chapter 8: Enzymes

• Name the enzyme, the substrate, product and the cofactor?

• What is the effect of Temperature on the enzyme?

• What is the effect of PH?

• What is EDTA and what does it do?

• What do we mean by enzyme specificity?

• What is the dependent and independent variable in these experiments?

Chapter 9: Cellular Respiration

• What are the gasses used to calculate metabolic rate?

• What is unit used for metabolic rate?

• Which animal has a higher metabolic rate a small one or a large one?

• Name the pellets used in the mouse experiment and their function?

• Which type of beans released carbon dioxide boiled or germinated?

• How do we test for the presence of carbon dioxide in a solution?

• Name the tube used in fermentation?

• Which gas did we check to see if fermentation happened or not?

Chapter 10: Photosynthesis

• What is a chromatography paper and why do we use it?

• Name the pigments found in the spinach extract and their color?

• Which pigments were absorbed by the spinach extract and which ones where transmitted? Indicate the color and the wave length.

• Which pigments were absorbed by the carotene extract and which ones where transmitted? Indicate the color and the wave length.

• Which leaf contains starch the covered or the one left in the sun?

• What indicator is used to test for the presence of starch?

Chapter 11: Cell division

• Identify the stages of Mitosis and Meiosis in the picture?

• What is the difference between mitosis and meiosis?

• What is a haploid cell?

• What is a diploid cell?

• When will crossing over take place?

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Biotechnology

• Blood type

• What charge is found on the DNA?

• Be able to read a gel

• Why do we use the meat tenderizer, the soap and the ethanol in the extraction of DNA?