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kiruha [24]
3 years ago
12

Because of metallic bonding, when light is pointed at metals, they become

Biology
1 answer:
Helen [10]3 years ago
8 0
The correct answer is shiny
You might be interested in
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.<u> Facilitated diffusion. </u>

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.

<u>B. facilitated diffusion. </u>

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 are organelles and why are they important? (Please do not take answers from the Internet)​
kow [346]

Answer:

(Have a nice day)

¶Emma Jess¶

Explanation:

The small structures present within the cell to performed different functions are known as organelles.

U CAN HAVE MORE INFO FROM ATTACHMENT.. THATS MY TEXT BOOK

6 0
2 years ago
What stage of photosynthesis uses
Tamiku [17]

Answer:

light reaction because glucose is a factor of sugar.

3 0
2 years ago
Compare and contrast predators and prey please
kotykmax [81]

Answer:

A predator is an organism that eats another organism. The prey is the organism which the predator eats.

Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit.

3 0
2 years ago
Organ systems working together make up a/
lakkis [162]
Functioning body system 
3 0
3 years ago
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