Antibodies are produced in response to the presence of foreign molecules. The antibody helps to remove toxic molecules from our body fluids by forming tight complexes that are held together by weak forces. The ability of the antibody to make tight complexes with other molecules occurs through weak interactions. How can weak interactions produce a very strong bond between an antibody and the foreigh molecule?

weak attractive forces can easily be converted to covalent bonds
weak attractive forces become strong in a hydrophobic environment
one kind of weak force will be repeated to make the bond strong
several of the weak forces together cause a strong attraction
water causes weak forces to become strong

2006-08-22 17:21:39 · 3 answers · asked by ranchan_black17 2 in Biology

8 ⤊

is the size of a man's sperm cell and an ant's sperm cell the same size?

do any creatures have different-sized sperm cells or are they all approximately the same size?

2006-08-22 17:20:17 · 8 answers · asked by Louiegirl_Chicago 5 in Biology

10 ⤊

how much water in 1 cusec??

2006-08-22 17:19:12 · 15 answers · asked by kyada v 1 in Physics

7 ⤊

Is the Moon American?

I am happy, and a little bit frightened, to see that I may have started an avalanche about Man on the Moon. Does planting the Stars and Stripes on this piece of rock mean that the US own every right to e.g. sell me a cold beer, should I pass by some day?

Like Sputnik, like Jurij Gagarin, the landing on the Moon was felt by anybody excactly as Neill Armstrong said: One great step for Humanity.

2006-08-22 17:18:41 · 14 answers · asked by Lars Hundevad M 1 in Astronomy & Space

2 ⤊

what's the earth's radius ?

2006-08-22 17:18:20 · 6 answers · asked by Sarah 1 in Physics

4 ⤊

Have they ever observed Macroevolution?

Have they ever observed a new species come into the world?

2006-08-22 17:18:18 · 1 answers · asked by Chase 4 in Biology

6 ⤊

what is the smallest particle in universe? what is its name?

i heard that quarks are produced by particulate matter getting ever smaller, down to the tiniest particle(s). and then, when that happens (where do they go?), they form a quark. what are the names of these smallest particles? and then i heard that a quark (what is that really?) produces ever-increasing larger particles going out and out, creating universe? any concrete answers? any observations/thoughts on this?

2006-08-22 17:18:16 · 16 answers · asked by Louiegirl_Chicago 5 in Physics

24 ⤊

coffee smell in urine after drinking coffee.?

What's the indication of the above? Why?

2006-08-22 17:17:32 · 6 answers · asked by back2nature 4 in Medicine

2 ⤊

Are butterfly eggs bigger than cockroach eggs?

2006-08-22 17:14:41 · 5 answers · asked by psychoeddings 1 in Zoology

5 ⤊

Do you think Xena, Ceres or Charon should be catogorized as planets?

I think it is all just hype. I don't consider them planets.

2006-08-22 17:14:30 · 6 answers · asked by Jimdog 4 in Astronomy & Space

0 ⤊

where do fireflies go in the day?

my husband always wanted to know where fire flys go in the day does anyone know?

2006-08-22 17:14:08 · 15 answers · asked by camelnut2003 1 in Zoology

0 ⤊

3x^2 yz^4 over 12x^4 y^-3 z^9?

2006-08-22 17:12:14 · 9 answers · asked by Amber 1 in Mathematics

1 ⤊

Why is a crucible made of such a delicate material as porcelain?

2006-08-22 17:12:03 · 5 answers · asked by aSnxbByx113 2 in Chemistry

0 ⤊

can UK moths bite?

do moths native to the uk have the ability to bite

2006-08-22 17:08:37 · 13 answers · asked by Anonymous in Zoology

0 ⤊

What is 4(x-2) over 3 - 2(x^2-2) over 5?

I am really not doing well with these rational expressions and they must be done by thursday and u guys rock so the first to answer right will get points!

2006-08-22 17:07:52 · 7 answers · asked by Anonymous in Mathematics

4 ⤊

How did the solar system get created?

I know the scientific understandings of how the solar system was started, by why, and who/what created the solar system? Explain yourself. If you think it was god, who is god? Explain yourself.

2006-08-22 17:03:18 · 9 answers · asked by michael m 2 in Astronomy & Space

1 ⤊

How far is it from the surface of earth to outer space?

2006-08-22 17:02:12 · 8 answers · asked by precioustreasure2001 1 in Astronomy & Space

0 ⤊

Help! What is the answer to this unifying equation!?

∑ (∞/∞) = +/- {ƒ>0=[(∞)-1]}

2006-08-22 16:58:00 · 6 answers · asked by Ammy 6 in Mathematics

0 ⤊

5'7'' in inches?

2006-08-22 16:56:38 · 20 answers · asked by Dana 2 in Mathematics

1 ⤊

A substance contains 100mg per teaspoon, 20mg represents what part of the substance?

express in fraction form and please explain answer

2006-08-22 16:55:45 · 4 answers · asked by grkgrl79 1 in Mathematics

1 ⤊

Differential Equations?

Find the Laplace transform of f, where f(t) = sinh(at).

2006-08-22 16:55:08 · 7 answers · asked by Jerry M 3 in Mathematics

0 ⤊

What is a over b + y over x + 3 over 2 simplifyed?

You guys are SO smart and I really need help!!

2006-08-22 16:54:29 · 3 answers · asked by Anonymous in Mathematics

0 ⤊

is hubble telescope workin properly ?

2006-08-22 16:54:26 · 4 answers · asked by arkay 1 in Other - Science

0 ⤊

parallelogram PQRS (Vector question)?

I am having a little difficulty with this problem. I know it is simple but i just can't get it.

In parallelogram PQRS let

q = vector PQ and s = vector PS

Let U be the midpoint of SR. Extend side SR to a point T such that the length of ST is 2 times the length of SR. I would like to write the following in terms of the vectors q and s.

the ones i have difficulty with are

vector SR
vector SU
vector QU
vector ST

i have also difficulty with

vector PT and
vector TP

2006-08-22 16:54:16 · 3 answers · asked by zz06 3 in Mathematics

0 ⤊

Are you smart: Do this to find out?

one half musin two third
and under it you have -1 - -3

for example:
1/2-2/3
-1- -3

2006-08-22 16:53:44 · 11 answers · asked by OOPs 1 in Mathematics

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