Wanna take a test.... just because..?

doh! that's what I get for thinking too fast. doh!now I just feel stupid.

---

Want to help give back to the world community? Did you know that your computer can help? Join the newest TeamEvC Climate Modelling to help improve climate predictions for a better tomorrow.

i thought those nodules were nitrogen-fixing bacteria, not fungi?mind you, it's been about a half-year since I've had any plant biology, and I'm not likely to take a class in biology again, so . . .

---

Want to help give back to the world community? Did you know that your computer can help? Join the newest TeamEvC Climate Modelling to help improve climate predictions for a better tomorrow.

Oops... Was thinking of osmosis...*whistles innocently*

Are you thinking of "osmosis"?

Should have said "expansion", not "explosion".

quote:

---

12: Refraction occurs when

​

A. light waves travel in a straight path.
B. light waves bounce off a mirror.
C. light waves are separated into a spectrum.X
D. light waves are bent.
  —"Phat"

---

The answer is D: Refraction occurs when light waves are bent. I remember it by thinking that Snell's law of refraction is all about bending angles. The process you're thinking of is diffraction.Still, you got quite a few right that I wouldn't've been able to answer.Cool test by the way, NJ... it's a good reminder for me to swat up on these things .Edited by Zawinul, : No reason given.Edited by Zawinul, : No reason given.

In Dawkins' book The Ancestor's Tale, he pretty confidentally states that plants could live without fungi; though the context of his statement was more about how rubbish animals and fungi are compared to plants, rather than him trying to prove a point about how plants live. So I wouldn't be too surprised if he was wrong on that count.Edited by Zawinul, : No reason given.

Can someone tell me what the answers to 6,7, and 8 are? I think I knew the rest. My guesses are:6: Vitamin A can be found in:A. green vegetables
B. citrus fruits
C. fish oil
D. wheat germA or D, if I had to answer, I'd choose A, but wonder if it was really C.7: Mitosis is a process of:A. creating energy
B. sexual reproduction
C. destroying mass
D. asexual reproductionMy guess is D, though I'm pretty sure it at least has to do with reproduction.8: Animal cells have all the following parts EXCEPT:A. vacuole
B. ribosome
C. cell wall
D. mitochondriaGuessing A, though my favorite cell word is endoplasmic reticulum, which has something to do with cell power and the chromosome. All my children know what it is from a huge skit on the cell that their school did, but I just like the sound of it.

(It's C. Animal cells don't have cell walls; they only have cell membranes.)Actually the endoplasmic reticulum is involved in protein production. If I recall correctly it's studded with ribosomes, and forms a sort of collection bin for their protein products before they're "shipped out" to other parts of the cell, etc.

you're right with the shipping, just to the wrong destination.All proteins for the cell are made by unbound ribosomes.
All proteins for other cells and areas outside the cell are made by bound ribosomes. those would be the ones stuck to the endoplasmic reticulum.(abe:the RER (rough endo . . .) is not a storage unit. If anything, it would be the golgi apparatus, which is responsible for packaging the proteins to be sent outside of the cell)Further note, if I remember correctly, endoplasmic reticulum is responsible for detoxification. the difference is that this occurs in smooth (ribosome-free) ER. Edited by kuresu, : more info

---

Want to help give back to the world community? Did you know that your computer can help? Join the newest TeamEvC Climate Modelling to help improve climate predictions for a better tomorrow.

Mmmmm. Yeah. Symbiotic bacteria, not fungi. My bad.

I can't help you with 6, sorry.7 is D.mitosis is nothing more than the splitting of a cell into two complete cells. Hence, asexual reproduction (no mixing of genetic material with outside sources, unlike sexual reproduction).meiosis is a similar process, though only used by gametic cells, and in the end produces four complete cells instead of two.8 is B.I can definately (I hate this word--I can never spell it correctly)see why you might think that animal cells have no vacuoles. Compared to a plant cell's vacuole, ours are tiny, pathetic looking things.

---

Want to help give back to the world community? Did you know that your computer can help? Join the newest TeamEvC Climate Modelling to help improve climate predictions for a better tomorrow.

Wicked, thanks.

quote:

---

The answer is D: Refraction occurs when light waves are bent. I remember it by thinking that Snell's law of refraction is all about bending angles. The process you're thinking of is diffraction.

​

Still, you got quite a few right that I wouldn't've been able to answer.

​

Cool test by the way, NJ... it's a good reminder for me to swat up on these things .

---

Just to be pedantic, light waves separating into a spectrum is an example of refraction.The different frequencies of light bend by differing amounts depending on the frequencies (I like to think of it as the the higher the frequency the more light you have interacting with the interface per unit time, so the more bending. Not sure if that's sound though).When I think of diffraction, I think of light or other waves going through a tiny slit and spreading out into light and dark patterns on a screen, though I think that's just one example of it (can't think of any others).Sadly, I got them all except

quote:

---

8: Animal cells have all the following parts EXCEPT:

​

A. vacuole
B. ribosome
C. cell wall
D. mitochondria

---

I immediately saw vacuole and thought of the large central vacuole that most plants have. Having a B.S in Biology, it's pretty embarrassing to get that one wrong.Anywho, this is all pretty basic high school science. I have a question that I hope is relevant enough to the topic:Has anyone here taught high school science? What are their impressions on the quality of education the students have by the time they reach high school? How frustrating and/or rewarding is it teaching?I enjoyed tutoring very much, but I couldn't believe some of the things people got stuck on and didn't know. And if it's that bad in college, i'd imagine it would have to be twice as bad in high school.To be fair these weren't science majors but this stuff was still pretty basic and in my opinion they should have known it by then.The reason I ask is that I just got a B.S. in Biology and a minor in chemistry. I'm going back next semester to finish a HPS degree and physics minor (hopefully), and then go on to get a Masters in Education and teach high school. That's the plan at least. I'm just not sure if I can handle high school students (and if karma exists, i'm in trouble because I really wasn't the most cooperative student)

18 correct, 7 incorrect out of a possible 25. (72%)