🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Biology
1
answer
0
watching
825
views

Hemoglobin content. The average volume of a red blood cell is 87 micrometers cubed. The mean concentration of hemoglobin in red cells is .34g/ml.

a.) What is the weight of the hemoglobin contained in a red cell?

ANSWER = 2.96 x 10-11 g

PLEASE EXPLAIN HOW TO GET TO THAT ANSWER.

b.) How many hemoglobin molecules are there in a red cell?

ANSWER = 2.71 x 108 molecules

PLEASE EXPLAIN HOW TO GET TO THAT ANSWER.

Watch
1
answer
0
watching
825
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Bunny Greenfelder
Bunny GreenfelderLv2
28 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

You have been asked to estimate the content of hemoglobin in a test sample. You decide to perform an assay where the concentration of hemoglobin in the test sample can be measured and compare with a hemoglobin standard curve whose range is across 25 to 800 ug/well. The test sample is treated identically (volume assayed is 10 ul) to the standard hemoglobin and gives an absorbance reading of 0.4. By using the kaleidagraph program to analyse the data, the following equation is produced: y = 0.0005 + 0.0018x Using the above information, answer the following questions:

a) what is the amount of hemoglobin in the test sample added to the well expressed in ug?

b) what is the concentration of the hemoglobin in the test sample expressed in g/L?

c) If the red blood cell count expressed as number of cells/L is 5.5 x 1012, what would be the amount of hemoglobin per red blood cell in the test sample? Express the results in picograms/cell.

3. There are about 250 million molecules of hemoglobin in each red blood cell. Considering that all of the heme molecules are binding oxygen and that the red blood cell volume is about 0.1 pL, what is the concentration of O2 in a red blood cell? (For comparison, water at 37oC contains about 0.4 mM dissolved O2.) Please show work.

4. Cell Cycle (fill-in the blank with prophase, metaphase, anaphase, telophase, cytokinesis or stages of interphase (Growth 1, Synthesis, Growth 2). (some may be used more than once while others may not be used at all.)

__________ separation of sister chromatids (copied chromosomes)

__________ copied chromosomes align in the middle of the cell

__________ microtubule spindle forms

__________ nuclear membrane forms around chromatin

__________ separation of all cellular components into two different cells

__________ copied chromosomes condense

__________ duplication of DNA

__________ nuclear membrane breaks down

How much carbon dioxide and oxygen from/for respiration are inthe bloodstream at any one time? (mass per litre of blood orsimilar)

And would there be much more aside from the blood in tissue,e.g. muscle, brain, etc.

So far the figures I have are as follows (please double checkfor me, I dont have a clue)

O? molecules per red blood cell: 1 billion. Red blood cells permicro litre of blood in males: 4.7 to 6.1 million. Molecules permole: 6 x 10^23. Therefore moles of O2 per litre of blood: approx0.01 (correct?) This seems quite low, since an inhalation istypically 0.5L and about a quarter of the oxygen is absorbed(oxygen by volume, 5% of the air) (1 thousandth of a mole of oxygenabsorbed per inhalation?)

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in