Notice: Payments for answers will end 4/10/2017. Click for more info.
You have new items in your feed. Click to view.
Question and answer
Q: Which of the following is NOT a part of an ATP molecule? A. adenine B. ribose C. chlorophyll D. phosphate
A: Chlorophyll B is, chemically, very similar to hemoglobin (the stuff that carries oxygen in your bloodstream and gives it that lovely red color). [ [ However, hemoglobin is an iron porphyrin (Fe surrounded by four pyrroles, which are organic ring molecules with nitrogen atoms surrounding the Fe), whereas chlorophyll (A&B) is a magnesium porphyrin. Chlorophyll is an effective photoreceptor
(capture light energy efficiently) because they have alternating single and double bonds. Because of a slight difference in their structures, A and B tend to absorb light over different ranges of wavelengths, and therefore the two complement each other in biological systems (i.e. in plants). However, it is not enough to just absorb the light energy; there must also be efficient means of transferring that energy to chemical potential (i.e. to transform it into a form that it can be used to do some work). In biological systems, a complex sequence of reactions within a cellular structure, called a chloroplast, uses the light energy to make chemical energy by reducing CO2. In other words, your "bio-solar cell" would have to somehow either (1) mimic this process, which sounds pretty tough, or (2) somehow transfer energy directly into the motion of electrons (which could cause a current, etc.). Then, you would have to figure out a way to make a cell which would prevent the chlorophyll from degrading. Anyway, what I wanted to say was, it is tough to make a solar cell that is more efficient than a chloroplast; it absorbs photons with near-unit efficiency (almost every photon that hits a chlorophyll molecule gets absorbed) and transforms light energy to chemical energy very efficiently as well. But a plant can always make more of it when it starts to degrade, and a solar cell made by man cannot repair itself. I hope these meandering observations helped! Robert Topper ] ]
Expert answered|rutie|Points 35|
Question|Rated good
Asked 12/15/2010 9:12:57 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
Going to court instead of using mediation or negotiation can sometimes make this type of case worse. A. murder B. divorce C. shoplifting D. robbery
Weegy: Going to court instead of using mediation or negotiation can sometimes make a DIVORCE case worse. User: Which position requires advocacy? A. judge B. jury C. defense attorney D. arbitrator (More)
Question
Expert Answered
Updated 11/30/2014 10:18:46 AM
1 Answer/Comment
Defense attorney is a position that requires advocacy.
Added 11/30/2014 9:44:38 AM
This answer has been confirmed as correct, not copied, and helpful.
Burglary is a crime and is also the tort of A. trespass. B. battery. C. intentional infliction of emotional distress. D. none of the above
Question
Not Answered
Updated 11/30/2014 9:23:39 AM
1 Answer/Comment


Burglary is a crime and is also the tort of trespass .




Added 11/30/2014 9:23:39 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Janet17 [11/30/2014 9:29:19 AM]
What are the three parts of an ATP molecule? A. adenine, thylakoids, stroma B. stroma, grana, chlorophyll C. adenine, ribose, triphosphate tail D. NADH, NADPH, and FADH2
Weegy: A User: Energy is released from ATP when A. a phosphate group is added. B. adenine bonds to ribose. C. ATP is exposed to sunlight. D. a phosphate group is removed. (More)
Question
Expert Answered
Updated 10/31/2015 7:47:10 AM
2 Answers/Comments
The three parts of an ATP molecule: adenine, ribose, and triphosphate tail.
Added 10/31/2015 6:46:02 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [10/31/2015 7:46:38 AM]
Energy is released from ATP when a phosphate group is removed.
Added 10/31/2015 6:48:01 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [10/31/2015 7:47:12 AM]
25,773,521 questions answered
Popular Conversations
The evolution of agricultural practices ultimately led to the ...
Weegy: The evolution of agricultural practices ultimately led to the development of towns and cities.
6/23/2017 10:56:18 AM| 1 Answers
Dinosaurs became extinct due to the A. breakup of Pangaea. ...
Weegy: Dinosaurs became extinct due to the: Cretaceous extinction event. User: Which type of preservation is made ...
6/27/2017 10:01:19 AM| 1 Answers
A batholith is a mass of rock that forms when a large body of magma ...
Weegy: A batholith is a mass of rock that forms when a large body of magma cools inside the crust. TRUE.
6/25/2017 1:54:48 AM| 0 Answers
Earth’s lithosphere is composed of a. the crust only. b. the mantle ...
Weegy: The LITHOSPHERE is the part of the Earth composed of the crust and upper mantle.
6/25/2017 1:50:09 AM| 0 Answers
Radioactive isotopes are used to a. determine the absolute age of ...
Weegy: Radioactive isotopes are used to determine the absolute age of rocks.
6/25/2017 1:43:13 AM| 0 Answers
Magma that hardens vertically underneath the surface will form a ...
Weegy: Magma that hardens vertically underneath the surface will form a sill. FALSE.
6/25/2017 1:22:58 AM| 0 Answers
The ADA states that a service animal can be any animal that the ...
Weegy: The ADA states that a service animal can be any animal that the passenger deems a service animal and must be ...
6/25/2017 12:55:37 AM| 0 Answers
Waves that cause the most damage during an earthquake are waves.
Weegy: Waves that cause the most damage during an earthquake are surface waves.
6/25/2017 12:53:18 AM| 0 Answers
Which of the following would be considered a negative side effect of ...
Weegy: Threats of dangerous flooding would be considered a negative side effect of settling near a river bed.
6/23/2017 11:35:22 AM| 0 Answers
Most scientists and anthropologists agree that early humans first ...
Weegy: Most scientists and anthropologists agree that early humans first emerged in AFRICA.
6/23/2017 10:53:42 AM| 0 Answers
A paragraph that has its topic sentence first is _____. a rectangle ...
Weegy: A paragraph that has its topic sentence first is an inverted triangle.
6/23/2017 10:25:31 AM| 0 Answers
Weegy Stuff
S
L
Points 40 [Total 1371] Ratings 0 Comments 0 Invitations 4 Offline
S
Points 17 [Total 17] Ratings 0 Comments 7 Invitations 1 Offline
S
Points 14 [Total 14] Ratings 1 Comments 4 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 0 Comments 0 Invitations 1 Offline
S
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
S
R
Points 3 [Total 19] Ratings 0 Comments 3 Invitations 0 Offline
S
Points 3 [Total 3] Ratings 0 Comments 3 Invitations 0 Offline
S
Points 2 [Total 2] Ratings 0 Comments 2 Invitations 0 Offline
S
Points 2 [Total 72] Ratings 0 Comments 2 Invitations 0 Offline
S
Points 1 [Total 1] Ratings 0 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.