Afood contains 28 g carbohydrates, 2.7 g protein, and 0.3 g fats. how many calories does the food provide

There are 4 calories in 1 gram of protein

There are 4 calories in 1 gram of carbohydrates

There are 9 calories in 1 gram of fat

2.7 grams of protein: 2.7 • 4 = 10.8 grams

28 grams of carbohydrates: 28 • 4 = 112 grams

0.3 grams of fat: 0.3 • 9 = 2.7 grams

Add up all 3 results (10.8 + 112 + 2.7) and we get 125.5 grams

125.5 grams

before it leaves the nucleus of a eukaryotic cell, mrna is altered in the following ways: - a cap is added to the 5' end of the mrna molecule; - a poly a tail is added to the 3' end; - introns are removed and exons are spliced together.