1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
meriva
3 years ago
7

What is the structure of hair?

Chemistry
2 answers:
Arturiano [62]3 years ago
7 0
The basic protein of hair is the keratin. Keratin is a fibrous protein which is insoluble in water. Fibrous proteins are long and narrow strands. Keratin molecules are held by hydrogen bonds, giving hair its structure.

Hydrogens bonds are easily broken and formed; [for example straightening curly hairs. Hydrogen bonds are broken when heated, hairs are straightened, the hydrogen bonds form again holding its stucture (straight) unless water is applied which disrupt the hydrogen bonds.]

Hope it helped!
maks197457 [2]3 years ago
3 0
A protective layer composed of overlapping cells, like fish scales or roof tiles, but facing downwards. The outer cuticle holds your hair in your hair follicle by means of a Velcro-like bond. It also minimizes the movement of water (moisture) in and out of the underlying cortex.
You might be interested in
2 HCI → H2 + Cl2<br> Endothermic or exothermic
Oksana_A [137]

Answer:

Exothermic

Explanation:

I think it is exothermic because heat is being released

6 0
3 years ago
In tissue engineering, scaffolds are built for growing replacement body parts primarily so that:
Stels [109]
One of the functions of scaffolds in tissue engineering is letter b. cells grow into the correct shape. Scaffolds used in tissue engineering have biomaterials with biological attributes <span>that will enhance cell attachment </span>and topography where cells morph and align.
7 0
3 years ago
Read 2 more answers
How many neutrons would Oxygen-19 have
Softa [21]
Oxygen has 7 neutrons
8 0
3 years ago
Read 2 more answers
List 8 functions of petroleum​
borishaifa [10]
Petroleum is used as a fuel to power vehicles and machines.

Petroleum products include fuel oils for heating and electricity generation.

It is a feedstocks for making the chemicals and plastics.

We use petroleum to produce electricity.
5 0
3 years ago
In the United States, barometric pressures a re generally reported in inches of mercury (in. Hg). On a beautiful summer day in C
Svetllana [295]

Answer:

773.43 torr

Explanation:

From the question given above, the following data were obtained:

Pressure (in inHg) = 30.45 inHg

Pressure (in torr) =?

We can convert 30.45 inHg to torr by doing the following:

1 inHg = 25.4 torr

Therefore,

30.45 inHg = 30.45 inHg × 25.4 torr / 1 inHg

30.45 inhg = 773.43 torr

Thus, 30.45 inhg is equivalent to 773.43 torr

7 0
2 years ago
Other questions:
  • Al2(CrO4)3 percentage of Al
    13·1 answer
  • If boiling water were poured into a China cup and a foam cup which cup would feel hotter?explain.
    8·2 answers
  • What part of the sun do we see from earth?
    8·2 answers
  • A roller coaster track is 3,000 meters long. It takes 100 seconds totravel once around the roller coaster. What is the average s
    15·2 answers
  • A certain reaction has an activation energy of 67.0 kJ/mol and a frequency factor of A1 = 4.20×1012. What is the rate constant,
    9·1 answer
  • What is the [H+] concentration of a solution with a pH of 3.78
    5·1 answer
  • What is the mass of 9.4 moles of B2(Cr207)3?
    13·1 answer
  • 56789x09876<br><br><br><br><br><br><br> Does anyone want to rp?? Any kind of rp I'm just bored
    8·1 answer
  • Does water evaporate ant any temprature
    14·1 answer
  • 1. Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appear
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!