Can anyone help with this?
If the cell has a density of 1.2 g/cm3, how many cells are present in a 10g pellet of cells obtained by centrifuging 1000ml of a culture of the bacterium?
Thanks to anyone who can help! I have no idea how to do this!
2007-01-08 09:43:13 · 4 answers · asked by Showaddywaddy 5 in Science & Mathematics ➔ Biology
1 cm^3 = 1 ml, so 1.2 g/cm^3 * 1000 ml culture = 1200 bacteria in the culture.
2007-01-08 10:18:42 · answer #1 · answered by ryandday 2 · 1⤊ 1⤋
Sorry, the question makes no sense at all.
you have been given the density of the cell, the mass of the pellet and the volume from which the pellet was obtained.
you can now work out the volume of the pellet (12 cm3)
the concentration of the culture (10 grams per litre) but without knowing either the mass or volume of the bacterial cell you cannot know how many bacteria are in the pellet
2007-01-08 20:30:50 · answer #2 · answered by adken77 2 · 3⤊ 0⤋
1 cm^3 = 1 ml, so 1.2 g/cm^3 * 1000 ml culture = 1200 bacteria in the culture.
Well, in this situation, we need to work with similar units, so 1cm3 is equal to 1 ml, we would then take 1.2 multiply it by 1000 and obtain an answer of 1200 bacteria in the given culture.
2007-01-08 10:50:56 · answer #3 · answered by Carpe Diem (Seize The Day) 6 · 0⤊ 2⤋
Me either. I suck at bialogy, I can't even spell it!
2007-01-08 09:48:08 · answer #4 · answered by Anonymous · 0⤊ 2⤋