Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
New Topic  
LESHUDSON74 LESHUDSON74
wrote...
Go to Answer
Posts: 27
Rep: 1 0
10 years ago
Trace the flow of electrons in photosystem II from water to reduced plastoquinone (Q) by moving the terms to the appropriate blanks in the sentences below. Two terms will be used more than once.

1. Photons break the bonds in two ____ molecules, yielding four protons, four _______, and O2.
2. A Tyr residue transfer electrons to ______, forming ______.
3. ________ is excited, forming ______ .
4. P680* transfers an electron to _________, yielding ______ and Pheo-.
5. Pheo- donates an electron to _______.
6. Two ________ each transfer an electron to QB, which, along with protons from the stroma, forms _____.

WORD BANK: QA-, water, P680*, P680+, QA, electrons, QBH2, P680, pheophytin

I really tried. What I have so far is:
1. WATER, ELECTRONS
2. ??
3. ??
4. . PHEOPHYTIN, P680+
5. QA
6. QA, QBH2

Please help. Thank you Slight Smile
Read 2318 times
2 Replies
Replies
Answer accepted by topic starter
miao23miao23
wrote...
#1
Posts: 22
Rep: 1 0
10 years ago
Sign in or Sign up in seconds to unlock everything for free

Related Topics

wrote...
#2
3 years ago
Thank you
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1351 People Browsing
 106 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 221
  
 266
  
 242
Your Opinion
Which 'study break' activity do you find most distracting?
Votes: 741
Previous poll results: What's your favorite funny biology word?