To prove that a certain fruit (in this case, an orange) indeed contains a certain compound (in this case, vitamin C); then the vitamin C should be extracted and isolated from the orange and must be confirmed by molecular analysis. The extraction process involves using chemicals (i.e. 6% MPA), and procedures such as centrifugation and filtration. Then the extract is stored and subjected to high-performance liquid analysis (HPLC) to measure the vitamin C content.
Answer:
50 grams and 175 grams
Explanation
Acceptable macronutrient distribution range are predetermined ranges of intake of a specific macronutrient such as Proteins, carbohydrates and fats.
It was developed to promote healthy diet in the society.
According to the AMDR, the ranges of proteins should be 10-35 percent of the calories.
Therefore;
10/100×2000=200
But 1g contains 4 kilocalories of protein so;
200kCal/4kcal=<u>50 grams</u>
<u>35/100×2000=700 kcal of protein so; </u>
<u>700kcal÷4kcal= 175 grams </u>
B.An advertisement for acne medication claims it can clear up acne in less than one week.
The bond between one carbon atom and one oxygen atom is polar but due to the fact that there is another oxygen attached to the carbon which has the same electronegativity value as the oxygen on the other side, the effect of polarity is canceled.
is non-polar because the oxygens symmetrically alligned on the opposite sides of the carbon cancel the polarity effect.
Answer: Option B) . a decrease in the amount of oxygen dissolved in
the pond
Explanation:
Anaerobic bacteria are able to survive in the absence of oxygen while aerobic bacteria survive only in the presence of abundant oxygen.
Hence, while reduced levels of dissolved oxygen in the pond decrease the amount of aerobic bacteria like Bacillus; anaerobic bacteria like Actinomyces flourish since they survive on organic substances like methane, cellulose instead.
