Sketch two amino acids side-by-side, on one of them label the functional groups, then show how the two can be joined together.
1 answer:
Answer : The sketch of two amino acids side by side are shown below.
Explanation :
Amino acid : Amino acid are the acid that contains two functional groups which are carboxylic group, and ammine group,
.
When the two or more that two amino acids join together with the help of peptide bond, they produces polypeptide chain or protein.
The bond present between the two amino acid is called a peptide bond.
The peptide bond is a chemical bond that is formed between the two molecules when the nitrogen of one amino acid react with the carbon of another amino acid by releasing a water molecule.
Hence, the sketch of two amino acids side by side are shown below.
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Answer:
Explanation:
You will need to use the conversion between food calories, calories and joules.
From a nutritional table (from the internet) you can obtain the amount of nutritional calories for each type macronutrient:<em> carbohydrates, protein, and fat.</em>
Macronutrient food calories
Carbohydrate 4 cal/g
Protein 4 cal/g
Fat 9 cal/g
To convert food calories to regular calories, mutiply by the conversion factor:
Macronutrient calories
Carbohydrate 4,000 cal/g
Protein 4,000 cal/g
Fat 9,000 cal/g
To convert regular calories to joules, multiply by the conversion factor:
Macronutrient energy in joules
Carbohydrate 16,736 joule/g
Protein 16,736 joule/g
Fat 37,656 joule/g
Now you can multiply the grams of each macronutrient in one potato by its energy content:
Macronutrient energy/gram × grams = total energy
Carbohydrate 16,736 joule/g × 37 g = 619,232 joules
Protein 16,736 joule/g × 4.3 g = 71,968.8 joules
Fat 37,656 joule/g × 4 g = 150,624 joules
Total = 619,232 joules + 71,968.8 joules + 150,624 joules = 841,820.8 joules.
Since they are <u>two potatoes</u>, multiply by 2: × 841,820.8 joules = 1,683,641.6 joules.
Divide by 1,000 to convert to kilojoules = 1,683.64 kilojoules
Divide the total energy from the two potatoes by the <em>energy that an average person expend per hour of walking (845 kilojoules of energy per hour):</em>
Answer:- C. Hafnium.
Solution:- Mass of the sample is 46.0 g and it's volume is .
From mass and volume, we can calculate it's density using the formula:
On the basis of the density, this substance could either be mercury or hafnium. Since the substance is a solid at room temperature where as mercury is liquid. So, it can't be mercury.
The right choice is C) Hafnium.