Biology - December 2006

Which organelle carries out metabolic reactions that are most similar to those carried out in a chloroplast?

a. golgi apparatus
b. cytosol
c. endoplasmic reticulum
d. mitochondrion
e. nucleus

2006-12-06 06:06:36 · 5 answers · asked by JoAnna 2

Which of the following properties are exhibited by biological membranes?


a.Impermeable to all but small lipophilic and hydrophobic molecules

b.Most proteins are fixed in the plane of the membrane

c.High fluidity, low viscosity

d.Low lateral mobility of lipid molecules

2006-12-06 05:52:09 · 1 answers · asked by Anonymous

Below are four fiction plots, discuss the specific evolutionary factors that would explain the population in the plots or/probable future evolutionary outcomes for the population is plots.
1. when Worlds collide
2. the time machine
3. children of damned
4. the war of the worlds

2006-12-06 05:44:09 · 2 answers · asked by Maria S 1

2006-12-06 05:42:10 · 2 answers · asked by Anonymous

Or does it just mean that it's unknown?

2006-12-06 05:37:24 · 4 answers · asked by Anonymous

2006-12-06 05:36:56 · 3 answers · asked by STORMY K 3

2006-12-06 05:29:29 · 2 answers · asked by Anonymous

choose two and and reason plz
Biological membranes comprise both protein and lipid. Which of the following statements about membrane proteins is true?


a.Most membrane proteins are freely mobile in the plane of the membrane.

b.Integral membrane proteins are associated with the membrane via the polar surface of the bilayer.

c.Integral membrane proteins exhibit a membrane spanning hydrophobic alpha-helix of 22 amino acids.

d.Proteins perform a purely structural role in membranes.

2006-12-06 05:14:05 · 2 answers · asked by Anonymous

Which of these statements about vesicular transport are true?


a.t and bSNARE's combine to allow vesicle fusion.

b.tSNARE's are located on vesicles.

c.Membrane bound tSNARE is recognised by vesicle bound vSNARE.

d.SNARE's are proteins that allow membranes to fuse together.

2006-12-06 05:12:54 · 2 answers · asked by Anonymous

or all of the above

2006-12-06 05:01:07 · 6 answers · asked by bbstuff26 1

plz help me quickly

2006-12-06 04:36:32 · 4 answers · asked by Anonymous

Australia Ends Ban on Human Cloning

CANBERRA, Australia (Dec. 6) - Australia legalized the cloning of human embryos for stem cell research with a vote by the House of Representatives Wednesday that lifted a four-year-old ban on the procedure.

The parliament passed Australia's first laws on stem cell research in 2002, allowing scientists to extract stem cells from spare embryos intended for in-vitro fertilization but preventing cell cloning.

The law passed Wednesday allows therapeutic cloning, the splicing of skin cells with eggs to produce stem cells, also known as master cells, which are capable of forming all the tissues of the human body.

Scientists hope stem cell research will eventually lead to treatments for conditions including Parkinson's and Alzheimer's, as well as spinal cord injuries, diabetes and arthritis.

Opponents said the bill promoted unproven science that did not respect the human rights of the unborn.

Is this a good idea? Should the U.S. do the same

2006-12-06 04:25:19 · 3 answers · asked by marnefirstinfantry 5

2006-12-06 04:17:43 · 7 answers · asked by Anonymous

2006-12-06 04:07:24 · 2 answers · asked by bekah_2009 2

I think the human body is an amazing creation from God. And all the parts of the body and how it functions is just amazing. Like the digestive system and how the body heals its self its just great. But what is puzzling to me is how the hair turns gray as one gets older. Is it a chemical imbalance when we get older or what but I just think Gray hair is so beautiful especially when you have a full head of that silver looking long hair, I love it, I cant wait to get mine.

2006-12-06 03:34:23 · 7 answers · asked by Survivor 2

Black hair is dominant to white hair. A breeder has a black haired male dog that came from 2 black haired parents. The breeder heard that some of the dogs in this family had white hair. He wants to sell this dog to a buyer for a lot of money. The buyer will only buy dogs that do not carry the gene for white hair. What test can he do to show the dog does or does not carry the gene for white hair.

2006-12-06 03:31:24 · 3 answers · asked by vred 1

2006-12-06 03:26:09 · 6 answers · asked by Lick my @sss 1

2006-12-06 03:25:46 · 3 answers · asked by Anonymous

It has DNA (or some sort of RNA), it can adapts to its environment (evolve), it can reproduce (not on it's own, but non-the-less it can). It even has protien (only one, but it's still there).

I don't understand why we don't consider viruses living.

2006-12-06 03:12:38 · 3 answers · asked by mikzilla0 2

Please answer seriously, this is a interview question. Thank you

2006-12-06 03:08:43 · 14 answers · asked by juliepallet 2

2006-12-06 02:51:44 · 3 answers · asked by Anonymous

2006-12-06 02:46:11 · 7 answers · asked by jollyrancher 1

2006-12-06 02:38:40 · 3 answers · asked by FLACA 1

2006-12-06 02:37:59 · 2 answers · asked by brazukinha 1

Seriously? We all know the egg came first.

2006-12-06 02:29:18 · 12 answers · asked by Barrett G 6

2006-12-06 02:20:37 · 5 answers · asked by ¤AFTERN00N L0VAH¤ 2

2006-12-06 02:18:18 · 20 answers · asked by sweety 2

I have to write a story that describes the difference between eukaryotic and prokaryotic cells. I'm totally stumped on this. Can you possibly help me? Everything I've come up with sounds lame.

2006-12-06 02:08:55 · 6 answers · asked by Jo 1

Kishore Sainani Living in Lagos Nigeria

2006-12-06 02:07:18 · 19 answers · asked by Sainani 1

|| yea i know what it is but i need some con-cloning websites please? kindly help? ||

2006-12-06 01:37:24 · 7 answers · asked by ¤AFTERN00N L0VAH¤ 2