Which of the following bio molecules can form beta sheets select all that apply    rna  lipids carbohydrates proteins

Adenine and thymine form hydrogen bonds between them, while cytosine and guanine form bonds. O 3.2 O21 O 22 O 33 O 23

Label all structures as appropriate. Draw and label all appropriate molecules to complet the pictures.

Which of the following are NOT a level of biological structure?     macromolecular level     cellular/ organelle levels     tissue/ organ level     organismal level     all of the above     none of the above   Which of the following are steps in the biosynthesis of proteins can be regulated?     macromolecular level     cellular/ organelle levels     tissue/ organ level     organismal level     all of the above     none of the above.

State the most important function of proteins. Support your selection with a logical argument.