Question

What is the levels of organization of simple cells to complex cells?

Answer 1

Hi there @yulyullie - mind explaining a bit further what's giving you trouble? I'm not sure if I'm getting your question correctly.

Are you asking about...how cells form tissues, tissues form tissue systems, which form organs, and etc?

Or is this more of a question about...how eukaryotic and prokaryotic cells differ? Or something entirely else that I'm missing :P

Answer 2

in my review sheet it says this. '' levels of organization (from the simple cell to a complex organism)'' would it be ranging from cell being the smallest to the organism being the biggest?

Answer 3

Ah yes - you are correct! It's referring to the cell on the tiny end of the spectrum, all the way to the organism at the large end - with all of your tissues, tissue systems, organs, and organ systems in between.

Answer 4

Oh I get it now! Thanks for helping me clarify :)) I hope I do well on my science exam. -_- It will be 100 marks. Also, what is the purpose of the enzyme amylase?

Answer 5

Best of luck! :D

Amylase is the enzyme that breaks down starch. You secrete a little bit of it in your saliva, so if you ever get a question about...chemical digestion or sugar breakdown, you know that process starts in the mouth. It's secreted later on in the digestive tract as well.

Answer 6

Thanks :) So now I get that amylase breaks down starch and does pepsin work with hydrochloric acid to break down food? Also clarify this - digestion : breaking down of food into particles and later the nutrients are absorbed for body to use. ingestion : taking in food mechanical digestion : breaking down food physically chemical di. : breaking down food by enzymes/chemicals / peristalsis : the squeazing of food down by the sphincters into the stomach bolus: a ball of ingested food feces : waste material of fiber, water and bacteria

Answer 7

Pancreas : creates bile or does the liver or both? Liver : has proteins produced like iron to help bone formation and _____________?

Answer 8

You are correct regarding pepsin. An acidic environment is needed to activate the enzyme.

As for the terms you posted up - they all seem to be correct? Is there something specific that was confusing you there?

As for bile - I believe it's only the liver that does so; bile is stored in the gall bladder.

Answer 9

And for the liver statement - I'm not too sure how iron fits into all of this. Hmm. I do know that the liver plays a role in processing Vitamin D, which does prevent bone-related disorders?

Answer 10

I see. I was just confused which produced the bile. So what would the pancreas do?

Answer 11

The pancreas produces a lot of the digestive enzymes, as well as bicarbonate (this is a base - it's needed for some of the enzymes to work properly). Here are the specific enzymes (thanks for making me study as well haha): lipase, nuclease, trypsin, chymotrypson, carboxypeptidase, amylase. In other words, every major class of compounds is covered by the pancreas - what a useful organ, eh? :D

Answer 12

That's really only half of the story, though.

The pancreas has both exocrine (duct) and encodrine (ductless) features.
A duct is just a channel for the secreted object to travel through...the enzymes above, for example, are secreted into a duct which travel into the small intestine.

The endocrine part of the pancreas is just as important. It releases hormones like insulin, glucagon, and somatostatin which all help regulate blood glucose level, digestion,e tc.

Answer 13

I have to leave for now, but let me know if you have more questions - I'll try to pop back on later. You have many other awesome helpers here too, of course! :)

Answer 14

Oh yeah! I heard about the pancreas creating insulin! Haha, have you did the biology unit on cells, body systems and et cetera yet or currently studying? Oh okay. I am your fan now so you will find more questions by me soon :)

Answer 15

enjoy your day. :D

Answer 16

I'm currently finished with my course. I look forward to your questions ^^