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Where are most carbohydrates found on a membrane?
Carbohydrates are not present on the membrane.
the transmembrane region
the outer surface
both the inner and outer surface of the membrane
the inner surface
Which of these is NOT a true statement? All cells contain cytoplasm. All cells contain DNA. All cells have plasma membranes. All cells contain mitochondria. All cells contain ribosomes.
Which of the following is found in eukaryotic cells but not in prokaryotic cells? a nucleus a cell membrane DNA enzymes a cell wallIf you label two different cells with different fluorescent labels and then fuse the two cells, the membrane components become evenly distributed across the membrane of the hybrid cell. What can you conclude? Membrane components are moving within the membrane. Membrane components are fixed within the membrane. Fluorescent labeling is not a useful technique for studying membrane components. The cells should have been labeled with the same fluorescent labels. None of the answers are correct.
The following lab requires water free conditions as well as reflux for reaction to be successful. Draw a schematic and label your reaction set up
A compound contains only C, H, N, and O. A 1.279g sample was burned to give 1.60 CO2 and .77g H2O. A separately weighed 1.625g sample contained 0.216g N. What is the empirical formula of this compound
Estrone is a female sex hormone that is known to contain 80.0% carbon, 8.2% hydrogen, and the remainder oxygen. If 793mL of estrone is found to have a mass of 4.97g at 0.90atm and 200oC, find the molecular formula for estrone.
A 0.204-g sample of a CO3^2- antacid is dissolved with 25.0 mL of 0.0981 M HCl. The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol blue endpoint with 5.83 mL of 0.104 NaOH.
The physical separation of crude petroleum into fraction is based on boiling point differences among components present.
What is the expected freezing point of a 0.50 m solution of Li2SO4 in water? Kf for water is 1.86°C/m.
How many times g of acceleration are present in an ultracentrifuge with a rotation frequency of 45000 rpm and a distance of 6 cm from the center of rotation. Note: the quantity omega is the angular frequency
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.10 M buffer solution at pH 5.0. Enter your answer to two significant figures.
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 4.40 . Calculate the partial pressure of each gas in the container.
A sample of chlorine gas at a pressure of 420 mm Hg and in a volume of 3.50 L was heated from 18.0oC to 45.0oC after being transferred to a container of volume 2.35 L. The pressure in this new container should be about
Draw diagrams to show the various orientations in which a p orbital and a d orbital on adjacent atoms may form bonding and anti-bonding molecular orbitals.
Suppose you had standard .1000 M NaOH ,an indicator, such as phenolphthalein, an analytical balance, and a micro-buret available. Explain how you could determine
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