Question

Which of the following organelles is part of the endomembrane system?
A. Mitochondria
B. Ribosomes
C. Golgi apparatus
D. Centrioles
@Destinymasha

Answer 1

Whats your best guess, Ori?

Answer 2

Ori?

Answer 3

http://en.wikipedia.org/wiki/Endomembrane_system

Answer 4

\(\large\color{}{Huh?}\)

Answer 5

Kk thanx one more?

Answer 6

. The Calvin cycle of photosynthesis begins when
A. carbon dioxide is attached to RuBP.
B. the reduction of carbon dioxide occurs.
C. light becomes available.
D. electrons leave a photosystem.

Answer 7

@Destinymasha

Answer 8

Any ideas?

Answer 9

Wow, I dont remember anything about the Calvin Cycle -but my best guess is A

Answer 10

the first one is Probally C because it is part of the EndoMembrane system and the Second Answer is c Because the calvin cycle requires light to obtain the electron from h20. Calvin cycle is also known as the Light Dependent cycle of Photosynthesis.

Answer 11

You confuse the names @TheSeabass The light INdependent reaction is also known as the calvin cycle.

Answer 12

Beside, the light dependent reaction is not a cycle in that kind of sense.

Answer 13

Aww yeah, you're right. My bad, the Calvin Cycle is indeed the light dependent cycle

Answer 14

crap i did it again lol....i guess it to early right now. The calvin cyle is LIGHT-INDEPENDENT

Answer 15

and what are you refering to when you say that it is not a cycle in that sense?

Answer 16

The light dependent isn't a cycle. (One way of remember what the calvin cycle is)

Answer 17

...then what is it exactly? doesnt it cycle because of the reuse of the co-enzymes?

Answer 18

Well not really. The light dependent reaction is strictly linear, you can say that something is a cycle if one or more of the starting intermediates are being produced.
See attachment 1

The good example is the calvin cycle which in a few steps create glyceraldehyde-3-phosphate (precursor to glucose). The remaining is going through a very complicated pathway in order to regenerate ribose-1,5-bisphosphate making a cycle structure.
See attachment 2

Answer 19

so the Nadp's and the adp's that are energized in the light dependent and then reused dont count as being regenerated?

Answer 20

No we usually don't. Beside they don't get regenerated. If you look strictly at the light dependent reaction, there are no final intermediates that are getting reduced by NADPH or any phosphorylation.

Answer 21

aahh ok i think i see what the difference is

Answer 22

well thanks dude you got a double answer with one question

Answer 23

ima say c...