In order to safely can low-acid foods like green beans, botulismspores must be killed by boiling for 30 minutes at 120 degreesCelsius. This can be achieved in a pressure canner filled withwater. What pressure is needed to safely preserve green beans andother low acid foods?
In order to safely can low-acid foods like green beans, botulismspores must be killed by boiling for 30 minutes at 120 degreesCelsius. This can be achieved in a pressure canner filled withwater. What pressure is needed to safely preserve green beans andother low acid foods?
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CELL RESPIRATION LAB
Section:
Type in your answers in complete sentences, be precise and specific to earn full credit, reformat if necessary
Purpose: The purpose of this lab activity is to analyze the effect of exercise on cellular respiration
Experiment 1 Enzymes in Food
Why is cellular respiration necessary for living organisms?
Why is fermentation less effective then respiration?
List the two co-enzymes involved in cellular respiration and describe their role.
| How many ATP molecules are produced in | |||
| Glycolysis | Citric Acid Cycle | Electron Transport | Fermentation |
Table 1. Fermentation by Yeast
| Tube | Initial Gas (mm) | Final Gas (mm) | Net Change |
| 1% Glucose Solution | |||
| 1% Sucrose Solution | |||
| 1% Equal Solution | |||
| 1% Splenda Solution | |||
| 1% Sugar Solution |
Include your hypothesis for this experiment. Be specificâ¦in other words we sure to include at least one end point you will measure to support your predictions. Natural sugar causes fermentation by producing CO2
Did you notice a difference in the rate of respiration between the sugars? Did any of the artificial sugars provide a good starting material for fermentation? Yes no artificial sugar did not provide a good starting material for fermentation as there was no change in height of gas.
Which tubes displayed evidence of anaerobic fermentation? How did you know? Due to change in gas height we can determine fermentation was occurring during to production of CO2
Hypothesize why some of the solutions were not metabolized. Research their chemical formulas.
How do the results of this experiment related to the role yeast play in baking?
Experiment 2Aerobic Respiration in Beans
How did the color of the bromothymol blue solution in each beaker change over time in each condition?
What is the mechanism driving the bromothymol blue solution color change?
What can be inferred from the color change of the bromothymol blue solution?
What evidence do you have that cellular respiration occurred in the beans? Explain your answer.
What are the controls in this experiment, and what variables do they eliminate?
If this experiment were conducted at 0 °C, what difference would you see in the rate of respiration? Why?
| Table 2: Bromothymol Blue Color Change Over Time for Pinto Bean Trial | |||
| Time | Pre-Soaked Pinto Beans | Dry Pinto Beans | No Pinto Beans |
| 0 min | |||
| 30 min | |||
| 60 min | |||
| 90 min | |||
| 120 min | |||
| 150 min | |||
| 180 min | |||
| 24 hours | |||
| Table 3: Bromothymol Blue Color Change Over Time for Kidney Bean Trial | |||
| Time | Pre-Soaked Kidney Beans | Dry Kidney Beans | No Kidney Beans |
| 0 min | |||
| 30 min | |||
| 60 min | |||
| 90 min | |||
| 120 min | |||
| 150 min | |||
| 180 min | |||
| 24 hours | |||
Question: What is the single most important change that should be made in Kevinâs diet now? Why is this important?
Kevin comes into your clinic for his 9-month check-up. Kevinâs mother stopped breastfeeding when he was 2 months old. He was constipated after he started infant formula so his mother switched to a low-iron formula. When Kevin reached 6 months of age, his grandmother insisted that he was old enough to start drinking cowâs milk instead of infant formula. Kevinâs parents decided to feed him 2% fat milk because his father has high cholesterol and they are worried Kevin will also develop high cholesterol if he eats high-fat foods. His hemoglobin is 9.0 g/dL.
At 9 months he is drinking milk and apple juice, but does not have much appetite for his baby food.
Foods were introduced into Kevinâs diet on the following schedule:
| 0-2 months | Breast milk |
| 2 months | Low iron Enfamil infant formula (provides about 4mg iron per day) Juice (in a bottle) to help with constipation. Infant cereal (added to the evening bottle to help him sleep through the night) |
| 3 months | Strained fruits and vegetables (but he kept spitting them back out when a spoon was used) |
| 6 months | 2% fat cowâs milk (discontinued Enfamil) strained infant foods (chicken) infant rice cereal with a spoon |
| 9 months | Biter (teething) biscuits dry Cheerios (finger food) |
Kevinâs daily typical intake at 9 months of age is as follows:
24 oz 2% cowâs milk
2 oz strained green beans (baby food)
2 oz strained applesauce (baby food)
1 oz strained chicken (baby food)
3 Tbsp infant rice cereal made with cowâs milk
4 oz juice in a bottle, 2x per day
Teething Biscuits or cheerios as snacks
question 1
What would be the best guideline to a healthy diet according to your instructor which is validated by other resources.
| 1. | Eat organic foods and primarily non-GMO foods. | |
| 2. | Eat all your meals at home. | |
| 3. | Eat a variety of foods. | |
| 4. | Eat a vegetarian diet. |
5.00000 points
QUESTION 2
A complete protein has all the 20 amino acids: 9 are essential for our body to consume and 11 our body makes on its own. We need 9 + 11 = complete protein to build muscle, repair cells, keep our immune system working properly, etc.
True
False
5.00000 points
QUESTION 3
It shouldn't be hard to reverse the GMO guidelines in this county.
True
False
5.00000 points
QUESTION 4
Out of a variety of foods you could eat, which one will make you feel the most full?
| Milkshake | ||
| Salad | ||
| Hamburg | ||
| Beer, wine or hard liquors |
5.00000 points
QUESTION 5
Which food has been identified as the food that cultures and people who have lived a very long life have always had in their diet?
| Chocolate | ||
| Vegetables | ||
| Whole grains | ||
| Beans |
5.00000 points
QUESTION 6
When we eat animal products: fish, turkey, chicken, duck, pork, beef, eggs, etc., these proteins when cooked give the body all the amino acids it needs to do the bodily functions that are dependent on protein.
True
False
5.00000 points
QUESTION 7
Trying new foods has value. Different foods gives the body more nutrition than having the same foods everyday. Your perception of food does change, thus how many times do you recommend to your family and friends to try a food they may not normally like throughout their life?
| 2-3 | ||
| 90-100 | ||
| 7-8 | ||
| 20 |
5.00000 points
QUESTION 8
Supplements should be taken with caution because they are unregulated by the FDA, they do not fall in the category of being food or medication.
True
False
5.00000 points
QUESTION 9
There is little scientific evidence that organic foods are more nutritious than conventionally grown foods.
True
False