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mina [271]
3 years ago
12

The movement of molecules down a concentration gradient through transport proteins in the cell membrane is a type of

Biology
1 answer:
ioda3 years ago
4 0

Answer:

Facilitated Diffusion

Explanation:

Some molecules can move down their concentration gradients by crossing to the lipid portion of the membrane directly,while others must pass through membrane protein s in a process called Facilitated Diffusion

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An example of plasma is _____________liquid_______________________.
Mumz [18]

Answer:

Example of plasma.

Explanation:

lightning.aurorae.the excited low-pressure gas inside neon signs and fluorescent lights.solar wind.welding arcs.the Earth's ionosphere.stars (including the Sun)the tail of a comet.

2.It's Bose-Einstein condensate, 

5 0
3 years ago
Species can vary in several ways. Which of the following is one of Darwin's ideas that was accepted by most scientists of his ti
fenix001 [56]

Answer:

Due to the large number of fossils being discovered at that time Darwin proposed that species change over long periods of time.

Explanation:

The theory of Darwin was that the species change in accordance to their environment, thus they develop advantageous traits so that they can be more competitive.

8 0
3 years ago
Vegetable shortening is a food product rich in trans fatty acids. It is produced by converting several cis double bonds totransd
liraira [26]

Answer:

Partial hydrogenation

Explanation:

Vegetable oils naturally contain cis fatty acids. These fatty acids have double bonds and the two H atoms are on the same side of bond, producing a kink in  the structure.

Cis fatty acids are converted into trans fatty acids by the process of partial hydrogenation or vegetable shortening. Hydrogen is added to convert some of the double bonds into single bonds but all double bonds are not removed. However, the cis double bonds end up getting converted to trans double bonds. H atoms are now on the opposite sides of the double bond. This arrangement makes the kink disappear from the structure hence trans fat is structurally similar to saturated animal fat. It increases the longevity of fats and makes it solid at room temperature but also has many side effects like increasing bad LDL cholesterol in blood.

7 0
3 years ago
A population of deer, a population of zebras, a population of lions, water, soil and sunlight form a(n)
WINSTONCH [101]

Answer:

B

Explanation:

Lmk if this helped

7 0
2 years ago
A syncopal episode would consist of all of these signs except​ ________.
shusha [124]
Seizure

Syncopal episode occurred when there is sudden or temporary drop in blood flow to the brain which results into loss of muscle control or loss of consciousness. Fainting or passing out can also be referred to syncopal episode and condition usually last for only seconds or minutes.


7 0
3 years ago
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