Organelle Quiz

A) Mitochondrion
B) Ribosome
C) ER

Bonus: mitochondrion.

A) Not interesting.
B) Unbelievably interesting.
C) Moderately interesting.

Let's face it. If bacteria don't have it who really cares.

A) Mitochondrion
B) Ribosome
C) ER

Well that's 0 for 3. A hint - this is a phase light image using a 100X objective, not an EM micrograph. The image is about 100micrometers x 100micrometers.

Further hint, inspired by the comment by BTM - aka the rambler - one of these organelles was once a bacteria. (I guess that's like saying that RPM mislabeled an organelle).

A) nucleus
B) vesicles
C) mitochondria

bonus: A and C

A) nucleus
B) vesicles
C) mitochondria

bonus: A and C

Good going sp, you got 2 out of 3 and the bonus. However the identity of (B) is still up for grabs. I must say that (B) is much bigger than any trafficking vesicle. Also (B) is found in every cell in your body.

B) Plastid

Not sure what kind, but based on the size and the other rule-outs, that's my best guess.

I was right about A)mitochondria as well but have been scooped.

b) peroxisome

?

Not a biologist, but it looks like the first answer is right.

Although A can be a number of things since it just looks like a blob. Since it's in a mammal cell, it would have to be a mitochondrion.

So,

A> mito
B> ribo
C> ER

A> can't be the nucleus because isn't the nucleus that big Jupiter looking thing at the top?

Hi Jason,

Nice of you to try your luck. But I'm sorry RPM was off the mark. I took the picture and deal with these guys on a day to day basis. I'll try to post other cell images in the future where the nucleus is obvious. If it's any consolation, your guesses are just as good as those of a Caltech prof.

As for peroxisome it's a better guess than plastid. (B) is related to the peroxisome, but in much higher abundance. On secon thought some of those black dots may be peroxisomes, I'll have to look that up. In any case most black dots are something else so (B) is still up for grabs.

B) microsomes?

I'm guessing, but you did say this was a hepatocyte.

endosomes?

Nope and Nope.

And Jason Re: Jupiter. I now see why you wrote that. The outline of that big Jupiter like thing is just the edge of the cell. It's open space.

darn it! are the lysosomes?

uh, do I lose points for not being able to type?

Sp you finally got it! Good work. (Due to your persistence, I'll overlook the typo)

Don't forget, just as you need to run to the bathroom a hand full of times a day to clear out all the junk that you produce, so do your cells. (For all you non-biologists, this clearing - actually recycling - is accomplished in part by lysosomes.) Although you don't hear much about them, all our cells are loaded with lysosomes. Yeast have only one lysosome, and it's so big that it's something else entirely, the vacuole - the biggest organelle in that organism. Peroxisomes are related to lysosomes so your early guess wasn't too far off the mark.

Yay! I actually am a fairly used to looking at yeast cells, so I'm much more used to the vacuole.....at least that's what I'll blame it on.

ALL I NEED IS THE ANSWER WERE IS IT LOL ITS FOR MY HOMEWORK!!!