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Thepotemich [5.8K]
2 years ago
3

PLEASE HELP -- Imagine protein X, destined to span the plasma membrane. Assume that the mRNA carrying the genetic message for pr

otein X has already been translated by ribosomes in a cell culture. If you fractionate the cells, in which fraction would you find protein X? Explain by describing its transit through the cell.
Biology
1 answer:
Lemur [1.5K]2 years ago
5 0

Answer:

Protein X would be ultimately present in the subcellular fraction containing membrane fragments

Explanation:

It is possible to trace the synthesis and transport of a membrane protein by the following steps:

1- The amino acids of the membrane protein are joined together in the ribosome to form a polypeptide chain (in this case, the protein X).

2- A signal sequence of the growing polypeptide produces the binding of the ribosome to the membrane of the endoplasmic reticulum (ER) and the insertion of this polypeptide chain into the ER.

3-The protein is released into a vesicle from the ER to be exported to the Golgi complex.

4- The membrane protein is transported by the Golgi complex to the cell membrane by the formation of a secretory vesicle that fuses with the plasma membrane, thus being finally embedded in the lipid bilayer.

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If bears find insects after they move decaying logs, they more frequently move decaying logs. This most clearly indicates that f
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Pick twenty foods and research the amount of total carbohydrates, sugars, and other carbohydrates in them. Note: Most food label
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Answer:

Here is the list which provides food name along with their carbohydrate concentration.

1) Bread 1 slice provides about 10-20 gram of carbohydrates.

2 )½ cup of wheat Cream, cooked with water provides about 15 gram of carbohydrates.

3) 1 cup of cooked Pasta provides 45 grams of carbohydrates.

4) half cup of mixed Nuts provide 15  grams of carbohydrates.

5) Potato is starchy vegetable which in baked 6 oz provides 40 grams of carbohydrates.

6) Cow’s milk provide 12 grams of carbohydrates when 1 cup of it is administered.

7) Yogurt plain 1 cup provides  14 grams of carbohydrates.

8) Apple with size of tennis ball  1 medium  provides 15-30 grams of carbohydrates.

9) Apricots, dried 7 pieces provides 15 grams of carbohydrates.

10) Blackberries or blueberries provides  20 grams of carbohydrates when 1 cup of it is administered.

11) Banana 6”-9” provides 30-45 grams of carbohydrates.

12) Dried Dates i.e 5-6 dates provides 30 grams of carbohydrates.

13) Grapes 15 in number provides 15  grams of carbohydrates.

14) Melons with 1 cup provides 15 grams of carbohydrates.

15) Mango cubes ½ cup provides 15 grams of carbohydrates.

16) Orange 1 medium  sized about tennis ball provides 15 grams of carbohydrates.

17) French fries Small order provides 30 grams of carbohydrates.

18) Popcorn with 3 cups provides 15 grams of carbohydrates.

19) Barbeque sauce, 2 Table spoon provides 15 grams of carbohydrates.

20) 1 Tbsp of Honey  provides 15 grams of carbohydrates.

CREDIT: Zahidahmadkhantanoli

4 0
2 years ago
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