2420-Lab 7- Microbial Growth
2420-Lab 7- Microbial Growth.
2420-Lab 7- Microbial Growth: Temperature, Oxygen and Osmotic Balance
Directions:
Answer following questions after reading the information and watching the video from the link below. Use color RED or BLUE for your answers. Submit the completed document on eCampus for grading. Refer to
路 the textbook聽chapter 4聽(sections 4.1, 4.3 and 4.4) (Nester- McGraw Hill)
Save your time - order a paper!
Get your paper written from scratch within the tight deadline. Our service is a reliable solution to all your troubles. Place an order on any task and we will take care of it. You won鈥檛 have to worry about the quality and deadlines
Order Paper Now路 Lab Manual by Dr. Su, pages (optional)
路聽Link:聽Environmental Influences of Bacterial Growth,聽Virtual Edge Experiment-聽5A-B
Bacterial Growth:
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.1, 4.3 and 4.4聽to聽answer the following questions.
Watch the following video:
路 For background:聽Bacterial Growth
1. Label the phases of growth on the following curve:
2. What happens to bacteria in the phases labeled as A, B, C and D in the above figure?
A:
B:
C:
D:
3. If we add more nutrients and space at the end of the exponential phase for a growing bacterial culture, what will happen?
Oxygen Requirement of bacteria
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.3-4.4聽to聽answer the following questions.
Watch the following videos:
路 For background:聽Oxygen Requirement of bacteria
路 For experiment:聽Oxygen requirement of bacteria using soft agar
Results of the bacterial oxygen requirement of bacteria:
4. Why can only some organisms tolerate oxygen?
5. Describe the kind of bacteria shown in the figure above in terms of oxygen (concentration) requirement and special enzymes.
6. Which oxygen related enzymes are present or absent in the bacteria from tubes A-E?
Temperature Requirements of Bacteria:
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.3-4.4聽to聽answer the following questions.
Watch the following videos:
路 For background:聽Temperature Requirement of bacteria
路 For experiment:聽Temperature Influence on bacterial growth
Temperature tolerance of bacteria
Write the correct term for bacteria growing under the following conditions
7. Most medically important bacteria
8. Bacteria growing on or inside your body
9. Bacteria growing in your refrigerator
10. Bacteria growing in the arctic ocean in winter
11. Bacteria growing in hot springs in Arkansas
12. Bacteria growing in geysers
13. Why are bacteria not able to grow at temperature higher than the maximum tolerance limit?
14. Do bacteria grow at the temperatures lower than the minimum tolerance limit? Why or why not? Explain
Osmotic Balance Requirements of Bacteria:
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.3-4.4聽to聽answer the following questions.
Read the following:
路 For experiment: Osmotic Influences
Osmotic tolerance of bacteria
Halophiles聽: On human body,聽Staphylococcus aureus聽is known to tolerate sweat. These bacteria may cause skin infections if athletic gear is shared among athletes without proper sanitization. In nature we will find bacteria, algae and fungi in water bodies or soil with higher salt concentrations. These organisms come under a group called 鈥渉alophiles鈥.
Habitat聽: Halophiles are usually found in salt lakes, salt marshes, subterranean salt deposits, dry soil, salted meat and hypersaline seas.
3 groups based on the salt concentration tolerance聽:
路 Halophiles-2-5% salt required for growth
路 Moderate halophiles-5-20% salt required for growth
路 Extreme halophiles-20-30% salt required for growth
Write the correct term for bacteria growing under the following conditions
15. Based in your knowledge about tonicity, for cells to survive they have to be surrounded by ______tonic environment.
16. Why would cells not survive in hypotonic or hypertonic environment?
2420-Lab 7- Microbial Growth: Temperature, Oxygen and Osmotic Balance
Directions:
Answer following questions after reading the information and watching the video from the link below. Use color RED or BLUE for your answers. Submit the completed document on eCampus for grading. Refer to
路 the textbook聽chapter 4聽(sections 4.1, 4.3 and 4.4) (Nester- McGraw Hill)
路 Lab Manual by Dr. Su, pages (optional)
路聽Link:聽Environmental Influences of Bacterial Growth,聽Virtual Edge Experiment-聽5A-B
Bacterial Growth:
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.1, 4.3 and 4.4聽to聽answer the following questions.
Watch the following video:
路 For background:聽Bacterial Growth
1. Label the phases of growth on the following curve:
2. What happens to bacteria in the phases labeled as A, B, C and D in the above figure?
A:
B:
C:
D:
3. If we add more nutrients and space at the end of the exponential phase for a growing bacterial culture, what will happen?
Oxygen Requirement of bacteria
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.3-4.4聽to聽answer the following questions.
Watch the following videos:
路 For background:聽Oxygen Requirement of bacteria
路 For experiment:聽Oxygen requirement of bacteria using soft agar
Results of the bacterial oxygen requirement of bacteria:
4. Why can only some organisms tolerate oxygen?
5. Describe the kind of bacteria shown in the figure above in terms of oxygen (concentration) requirement and special enzymes.
6. Which oxygen related enzymes are present or absent in the bacteria from tubes A-E?
Temperature Requirements of Bacteria:
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.3-4.4聽to聽answer the following questions.
Watch the following videos:
路 For background:聽Temperature Requirement of bacteria
路 For experiment:聽Temperature Influence on bacterial growth
Temperature tolerance of bacteria
Write the correct term for bacteria growing under the following conditions
7. Most medically important bacteria
8. Bacteria growing on or inside your body
9. Bacteria growing in your refrigerator
10. Bacteria growing in the arctic ocean in winter
11. Bacteria growing in hot springs in Arkansas
12. Bacteria growing in geysers
13. Why are bacteria not able to grow at temperature higher than the maximum tolerance limit?
14. Do bacteria grow at the temperatures lower than the minimum tolerance limit? Why or why not? Explain
Osmotic Balance Requirements of Bacteria:
Read the information聽from textbook聽from聽chapter 4 review聽sections 4.3-4.4聽to聽answer the following questions.
Read the following:
路 For experiment: Osmotic Influences
Osmotic tolerance of bacteria
Halophiles聽: On human body,聽Staphylococcus aureus聽is known to tolerate sweat. These bacteria may cause skin infections if athletic gear is shared among athletes without proper sanitization. In nature we will find bacteria, algae and fungi in water bodies or soil with higher salt concentrations. These organisms come under a group called 鈥渉alophiles鈥.
Habitat聽: Halophiles are usually found in salt lakes, salt marshes, subterranean salt deposits, dry soil, salted meat and hypersaline seas.
3 groups based on the salt concentration tolerance聽:
路 Halophiles-2-5% salt required for growth
路 Moderate halophiles-5-20% salt required for growth
路 Extreme halophiles-20-30% salt required for growth
Write the correct term for bacteria growing under the following conditions
15. Based in your knowledge about tonicity, for cells to survive they have to be surrounded by ______tonic environment.
16. Why would cells not survive in hypotonic or hypertonic environment?
“Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!”
