Absorbance & complementary colors

[medemic]

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So I just got done doing a TBR passage titled Enzymes, Coenzymes, and Vitamins. I had problem with question 11 (page 134). I didn't know that, for example, if blue is absorbed, we perceive yellow since it is the "complementary" color to blue. Are we supposed to know the complementary colors? The passage didn't give that information. Maybe it's just TBR being tough, but anyways I just wanted to know.

Cheers.

 

[FeinMS]

Know your artist's color wheel. It's simple as this:http://2.bp.blogspot.com/-NFmt5DA5mWA/T9ZGM7djawI/AAAAAAAAAI8/1XvslteuxI0/s320/basic+color+wheel.png
Complementary colors are located at the opposite side from the absorbed color

 

[enervate]

Another easy way to remember complementary colors is that there are two colors between complementary colors in the acronym ROY G BIV. Red's complementary color is green, orange is blue, and yellow is indigo/violet.

 

[medemic]

Another easy way to remember complementary colors is that there are two colors between complementary colors in the acronym ROY G BIV. Red's complementary color is green, orange is blue, and yellow is indigo/violet.

Thank you. I'm not going to forget that now. Cheers.

 

[medemic]

Wait. The answer says the complementary color to blue is yellow...is this an error?

 

[anegron519]

Wait. The answer says the complementary color to blue is yellow...is this an error?

Blue is yellow that is correct. Light absorbed is blue, light transmitted(color of light we see) is yellow.

 

[medemic]

Blue is yellow that is correct. Light absorbed is blue, light transmitted(color of light we see) is yellow.

According to the color wheel, it shows orange is opposite of blue, not yellow. What am I missing here?

 

[anegron519]

According to the color wheel, it shows orange is opposite of blue, not yellow. What am I missing here?

You assume color wheel is wrong.

 

[anegron519]

My lab book might be more detailed with blueish greens but you get the point.

 

[medemic]

You assume color wheel is wrong. View attachment 24289

Aright. So, consensus, do we have to memorize that table? Or do you think MCAT would provide information like this. The basic color wheel looks like it doesn't do the job

 

[enervate]

Eh, the color wheel still does its job. Each of those colors should be more of a gradient. It probably winds up being more like this:

 

[anegron519]

Eh, the color wheel still does its job. Each of those colors should be more of a gradient. It probably winds up being more like this:

This picture chart goes a lot better with the pic I posted. The gradients match right up.

 

[medemic]

Hm. I'm going to study this but not waste too much time. I feel like this is something that would be given on an information passage if it popped up