Biology, 25.02.2020 17:29 zaratayyibah

When a substance moves across the plasma membrane along a concentration gradient at a rate faster than would be expected by simple diffusion alone but without the expenditure of metabolic energy, the process is best described as:

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Answer from: normarismendoza

The correct answer is: Facilitated Diffusion.

Explanation:

Facilitated Diffusion can be defined as the process by which certain solutes, molecules and substances are transported across the plasma membrane down their concentration gradient (from a region where their concentration is high to a region where their concentration is low) with the help of carrier proteins.Carrier proteins are trans-membrane integral membrane proteins, those remain interspersed in the lipid bilayer of the plasma membrane and spans across the entire length of the plasma membrane such that they open up both in the cell interior as well as the cell exterior.Polar molecules like glucose, charged ions, amino acids are transported across the membrane by the process of facilitated diffusion. This is because due to their charge the lipid bilayer is impermeable to allow their direct simple diffusion.The process takes place along the concentration gradient and so it does not require the expenditure of metabolic energy.

Answer from: Quest

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Answer from: Quest

events in order:

1. vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.

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