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
Reika [66]
3 years ago
6

Select all statements that correctly describe hemoglobin and myoglobin structure. a. Molecular oxygen binds irreversibly to the

Fe ( II ) Fe(II) atom in heme. b. Each hemoglobin or myoglobin molecule can bind four oxygen molecules. c. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron. d. Each iron atom can form six coordination bonds. One of these bonds is formed between iron and oxygen. e. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron ( Fe ) (Fe) atom. f. Hemoglobin is a heterotetramer, whereas myoglobin is a monomer. The heme prosthetic group is entirely buried within myoglobin.
Chemistry
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

c. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron.

e. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron ( Fe ) (Fe) atom.

f. Hemoglobin is a heterotetramer, whereas myoglobin is a monomer. The heme prosthetic group is entirely buried within myoglobin.

Explanation:

The differences between hemoglobin and myoglobin are most important at the level of quaternary structure. Hemoglobin is a tetramer composed of two each of two types of closely related subunits, alpha and beta. Myoglobin is a monomer (so it doesn't have a quaternary structure at all). Myoglobin binds oxygen more tightly than does hemoglobin. This difference in binding energy reflects the movement of oxygen from the bloodstream to the cells, from hemoglobin to myoglobin.

Myoglobin binds oxygen

The binding of O 2 to myoglobin is a simple equilibrium reaction:

You might be interested in
What is the PH of a 7.5x10^-3 M OH solution
Triss [41]
pH: 11.8750612634
pOH: 2.12493873661
[H+]: 1.33333333333E-12
[OH-]: 0.0075
BASE
5 0
3 years ago
Read 2 more answers
What does the number 84 in the name krypton 84 represent
Shtirlitz [24]
Hi :)

The bottom number tells you how many protons you have in the nucleus of this element.

In Krypton-84, this means that you have 84 nucleons, where 36 of these are protons, and the remaining 48 are neutrons.


Hope this helps :)
5 0
3 years ago
Convert the following masses into kilograms:
beks73 [17]

Answer:

(a): 2,300 kilograms

(b): 0.005 kilograms

(c): 2.3 × 10^-5 kilograms

(d): 155 kilograms

Explanation:

Formulas:

(a); divide the mass value by 1000

(b); divide the mass value by 1e+6

(c); divide the mass value by 1e+9

(d); multiply the mass value by 1000

5 0
3 years ago
How many hydrogen atoms are in 5.80 mol of ammonium sulfide
IRINA_888 [86]

Moles of ammonium sulfide =  5.80 mol

The formula of ammonium sulfide is (NH₄)₂S

So each molecule of ammonium sulfide has (4 x 2)  or 8 atoms of H

One mole of ammonium sulfide has 8 moles of H

5.80 mol of ammonium sulfide has (8 x 5.8) or 46.4 moles of H

As per the definition of Avogadro's number, 1 mole = 6.022 x 10²³ atoms

46.4 moles of H x (6.022 x 10²³ atoms/ 1 mole of H)

= 2.8 x 10²⁵ H atoms

Therefore, 2.8 x 10²⁵ H atoms are in 5.80 mol of ammonium sulfide.

5 0
3 years ago
A sample of a gas at 25°C has a volume of 150 mL when its pressure is 0.947 atm. What will the temperature of the gas be at a pr
dezoksy [38]

Answer:

25°C

Explanation:

Combined Gas Law (P₁V₁)/T₁ = (P₂V₂)/T₂

(0.947 atm)(150 mL)/25°C = (0.987 atm)(144mL)/T₂

5.682 = 142.128/T₂

T₂ = 142.128/5.682

T₂ = 25.0137272756°C = 25°C

6 0
3 years ago
Other questions:
  • The oxidation number of As in Na3AsO2 is
    11·1 answer
  • A compound contains 6.0 g of carbon and 1.0 g of hydrogen and has a molar mass of 42.0 g/mol.
    15·1 answer
  • Theobromine, C7H8N4O2, is a component of chocolate. It is mildly diuretic, is a mild stimulant, and relaxes the smooth muscles o
    15·1 answer
  • Why is hydrogen chloride (HCl) polar?
    14·2 answers
  • A neutron walks into a gas station to buy some snacks. He ask the cashier ,"How much"? The cashier replies,"For you? No charge."
    14·1 answer
  • To Separate camphor from sand we use_______process.​
    10·1 answer
  • Use the drop-down menus to answer the questions.
    12·1 answer
  • Which question should you ask to find out the length of a planet's year?
    9·1 answer
  • I need help with this! I WILL GIVE YOU BRAINLIST!
    7·1 answer
  • How do you find the core electrons of the elements in the periodic table?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!