d H | Mechanism: Mechanism: R ATP ビー -Ribose OP PPi ADP A ATP OH OH OH OP そそ OP R BH

Could someone help me rank these in order of increasing activity in an SN1 reaction? Thanks!

Please answer 4,5,6

Which of the following is a reducing sugar? HO но OH но но HO" "OH HO" "OH Он но OH он HO A D A В C

Identify the type of glycosidic bond for each of the following sugars. Choose from a-(1-2), a- (1-3), a-(1-4), a-(1-5), a-(1-6), B-(1-2), ß-(1-3), ß-(1-4), ẞ-(1-5), ß-(1-6), or a,ẞ- (1+2) CH₂OH 0 HO H H OH H H H OH O a-(1-6) glycosidic bond OB-(1-5) glycosidic bond OB-(1-6) glycosidic bond Oa-(1-5) glycosidic bond CH₂ HO H H OH H H 0 H HP OH

Use your knowledge of condensation reactions to complete the following tasks. Protein: Draw a condensation reaction where a molecule of cysteine combines with a molecule of lysine, showing all reactants and products, and labeling a peptide linkage in your final product. Make sure the structures you draw include all hydrogens (leave every bond labeled and included in your drawing; don't use shorthand). Carbohydrate: Draw two ringed a-D glucose monomers forming a disaccharide (maltose). Make sure to label the glycosidic linkage formed.

The sugars can be classified as either aldoses or ketoses. Classify each structure with the correct name. НО НО H Н CHO —H -H -OH -OH CH₂OH НО НО Н CH₂OH c=0 H -н -OH CH₂OH НО НО н CHO ketose -H -Н OH CH₂OH Answer Bank aldose CHO H-C-OH CH₂OH НО Н CH₂OH c=0 -Н -OH CH₂OH " CH2OH O CH2OH

OH H3C CO2 CH3CHCO, pyruvate lactate The reduction of pyruvate to form lactate occurs as a hydride ion (H:) is added to C2 at the Re face, followed by protonation at the carbonyl oxygen. Draw the product of the reaction, showing the stereochemistry. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • You do not have to explicitly draw H atoms. • If a group is achiral, do not use wedged or hashed bonds on it.