Which scientific skill involves sharing what you have learned with others

The probability of flipping a coin twice and getting heads is_______

Free_Kalibri [48]

50/50
you see, the coin only has 2 sides
Also, you're flipping it twice
therefore, the probability is matched up and you have a 50/50 chance of getting heads at least 1 of those 2 times
(Hope it helped ^_^)

6 0

2 years ago

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In which case would facilitated diffusion be needed?

melomori [17]

Answer:

The voltage-gated potassium channels associated with an action potential provide an example of what type of membrane transport?

A. Simple diffusion.

B. Facilitated diffusion.

C. Coupled transport.

D. Active transport.

You are studying the entry of a small molecule into red blood cells. You determine the rate of movement across the membrane under a variety of conditions and make the following observations:

i. The molecules can move across the membrane in either direction.

ii. The molecules always move down their concentration gradient.

iii. No energy source is required for the molecules to move across the membrane.

iv. As the difference in concentration across the membrane increases, the rate of transport reaches a maximum.

The mechanism used to get this molecule across the membrane is most likely:

A. simple diffusion.

B. facilitated diffusion.

C. active transport.

D. There is not enough information to determine a mechanism.

Carrier proteins - exist in two conformations, altered by high affinity binding of the transported molecule. Moves material in either direction, down concentration gradient (facilitated diffusion). EXAMPLE: GluT1 erythrocyte glucose transporter.

Channel proteins - primarily for ion transport. Form an aqueous pore through the lipid bilayer. May be gated. Moves material in either direction, down concentration gradient (facilitated diffusion). EXAMPLES: Voltage-gated sodium channel, erytrhocyte bicarbonate exchange protein.

This might be helpful... because I don't know anything about facilitated diffusion.

5 0

3 years ago

What happens to the carbon atom during photosynthesis

Genrish500 [490]

After the NADPH molecules are formed, they bring pairs of the the molecules into the next part of photosynthesis. ... During this reaction, both the ATP and NADPH transform the carbon dioxide into carbohydrates. The carbon dioxide molecules come from the atmosphere and then enter the Calvin cycle

8 0

3 years ago

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Is any skin growth, such as a callus, in which there is overgrowth and thickening of the skin.

dexar [7]

Hyperkeratosis is amy lesion with overgrowth and thickening of the skin, such as warts, calluses, and corns.

6 0

2 years ago

Why are pepsinogen and trypsinogen secreted in an inactive form

Tatiana [17]

Explanation:

pepsin enzyme is secreted by gastric glands of the stomach as inactive pepsinogen to protect the cells of these..........