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Monica [59]
3 years ago
14

Substances like oxygen pass through the cell without the use of energy and move from an area of high concentration to an area of

low concentration. This process is called
Biology
2 answers:
Elden [556K]3 years ago
8 0

Answer:

Passive Transport

Explanation:

ki77a [65]3 years ago
5 0

Answer:

Diffusion

Explanation:

As substances like oxygen are non polar and are not dissolved in water they can diffuse through the cell membrane without the need of channel proteins whereas polar molecules would be repelled by the hydrophobic tails of the phospholipid bilayer an would need a channel protein

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If a bottle of beer has 15 grams of carbohydrate, 0 grams of fat, 1 gram of protein and 15 grams of alcohol, approximately how m
Over [174]

Fat: 1 gram = 9 calories, Protein: 1 gram = 4 calories, Carbohydrates: 1 gram = 4 calories, Alcohol: 1 gram = 7 calories

From the question given above, a bottle of beer contains 15 grams of carbohydrate, 0 grams of fat, 1 gram of protein and 15 grams of alcohol.

15 g of carbohydrate = 15 x 4 = 60 calories

0 g of fat = 0 calories

1 g of protein = 1 x 4 = 4 calories

15 g of alcohol = 15 x 7 = 105 calories

60 + 0 + 4 + 105 = 169

Therefore a bottle of beer contains 169 calories.






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