Blog

 Which pair of monosaccharides are structural isomers?

Which statement about the triglyceride is FALSE? [a] This triglyceride has 3 [a] fatty acids linked to glycerol. [b]

Isotopes phosphorus-31 and phosphorus-32 have different number of ___.

Sulfhydryl groups of cysteine react to form a strong covalent bond called ___. (arrow tip)

The interaction (arrow tip) between the molecules is called ___ bond.

Identify these structures in the prokaryotic cell. flagella that allow cell movement [a] pili that allow attachment to surfaces [b]  

The orientation of the polynucleotide strands of DNA is described as [a]. The polynucleotide strands of DNA are held together by [b] bonds. (box with arrow) The sugar in DNA is [c].    

Triglycerides function as [a] because of the large number of C-H bonds. This triglyceride has 3 [b] fatty acids linked to glycerol.

Which organelle probably arose from an ancient bacterium capable of aerobic respiration that was taken up, but not digested, by another cell?

A transport vesicle is carried by dynein motor protein ‘walking’ on a cytoskeletal fiber (arrow tip) called ___.