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
ExtremeBDS [4]
3 years ago
13

At PO2 = 40 mm Hg, which statement about the saturation of either myoglobin (Mb) or hemoglobin (Hb) is true? At PO2 = 40 mm Hg,

which statement about the saturation of either myoglobin (Mb) or hemoglobin (Hb) is true? At this partial pressure of oxygen, neither Hb nor Mb would be fully saturated with oxygen. At this partial pressure of oxygen, both Hb and Mb would be equally saturated with oxygen. At this partial pressure of oxygen, Mb would be almost completely saturated but Hb would not. At this partial pressure of oxygen, Hb would be completely saturated but Mb would not.

Chemistry
1 answer:
Damm [24]3 years ago
4 0

Answer:

At this partial pressure of oxygen, Mb would be almost completely saturated but Hb would not.  

Explanation:

The oxygen saturation curves for Mb and Hb are quite different. The curve for Mb is hyperbolic while that for Hb is sigmoidal.

Mb reaches oxygen saturation before Hb.

Thus, at a partial pressure of 40 mmHg, Mb is almost completely saturated but Hb is not.

You might be interested in
Calculate the molarity of a solution that contains 0.175 mol of zncl2 n exactly 150 ml of solution.
scoray [572]
Molarity = mol/L

0.175 mol
0.15 L (1000 mL = 1 L)

Molarity = 0.175 mol/0.15 L = 1.1666667 M
3 0
3 years ago
Read 2 more answers
An unknown substance has been shown to have metallic bonds.
gladu [14]
This is the correct answer please mark me as brainliest

6 0
3 years ago
Read 2 more answers
What is the volume of an oxygen tank if it contains 12 moles of oxygen at 273 K under 75 kPa?
Zina [86]
Given:
n = 12 moles of oxygen
T = 273 K, temperature
p = 75 kPa, pressure

Use the ideal gas law, given by
pV=nRT \\ or \\  V= \frac{nRT}{p}
where
V = volume
R = 8.3145 J/(mol-K), the gas constant

Therefore,
V= \frac{(12\,mol)(8.3145\, \frac{J}{mol-K} )(273\,K)}{75 \times 10^{3} \, Pa}= 0.3632\,m^{3}

Answer: 0.363 m³
    
5 0
3 years ago
If a proton and an electron are released when they are 5.50×10−10 mm apart (typical atomic distances), find the initial accelera
Vlada [557]

Answer: The initial acceleration of the proton = (4.56 × 10^23) m/s2

The initial acceleration of the electron = (8.36 × 10^26) m/s2

Explanation: The force of attraction between the proton and electron can be computed using the statements of Coulomb's law which state that the force of attraction between two charged particles is directly proportional to the product of the two charges and inversely proportional to the square of their distances apart.

F = (Kq1q2)/(r^2) where K = (9 × (10^9) Nm(C^-2))

But q1 is the charge on a proton = (1.6 × (10^-19)) C

q2 is charge on an electron = -(1.6 × (10^-19)) C

r = (5.50 × (10^-10))mm = (5.50 × (10^-13))m

Computing all that, F = 0.0007616529 N = (7.62 × 10^-4) N

But the force of attraction is converted to that required for motion when they're released.

F = ma.

For proton, m = (1.67 × 10^-27) kg

a = F/m = 0.000762/(1.67 × 10^-27) = (4.56 × 10^23) m/s2

For electron, m = (9.11 × 10^-31) kg

a = F/m = 0.000762/(9.11 × 10^-31) = (8.36 × 10^26) m/s2

QED!

7 0
3 years ago
The column just before the stable noble gases are called the
Sergio039 [100]
Is called the Halogen
6 0
3 years ago
Other questions:
  • Which of these scenarios involve a reaction that is at equilibrium
    14·2 answers
  • A doctor orders 4.5 mL of phenobarbital elixir. If the phenobarbital elixir is available as 20. mg per 7.5 mL, how many milligra
    10·1 answer
  • A scientist obtains the number 1250.37986 on a calculator. If this number actually has four (4) significant figures, how should
    13·2 answers
  • The speed of light is 3.0 x 10^8 m.s^-1. what is the speed in nm.ms^-1 ?
    6·1 answer
  • Are any other answer correct ? ♈❤️
    8·2 answers
  • CAN SOMEONE PLEASE HELP ME WITH THIS
    6·1 answer
  • Genetics is the study of
    12·1 answer
  • KNO
    6·1 answer
  • Plz help! The best answer will get brainliest!<br><br> What is the net force acting on an object?
    10·2 answers
  • The polarity of a bond between two elements can be best determined by.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!