Lefer to the figure showing the molecular structure of dimethylmercury. H–C-Hg C-H H. Exposure of human skin to a single drop of dimethylmercury can lead to death, as it is highly poisonous and passes easily cell membranes. Based on its structure, why is it able to pass so easily through cell membranes? I-0-I IICIH

In the following scheme: HH, H₂C-C-C-Coo II HO H • NH, 1 H₂C-C-C-C000 H 2-Amino-3-ketobutyrate ↓ O H,C-C-CH₂-NH₂ Aminoacetone 0 0 H₂C-C-C-H Methylglyoxal H H₂C-C-COO OH D-Lactate O H₂C-C-C000 Pyruvate What molecule is being metabolized? Identify the reaction at each step. If it is an oxidation-reduction prove this is correct by showing oxidation state changes on the atoms in the structure.

Three fatty acids are shown below. A онн Но-с-С H H H H H H. H. H. H. нн нннн ċ-Ć -H H H C с-с-н H H H но-с-с-с-с-с нннн ннн нннн Which fatty acid(s) is(are) saturated? Select all that apply. A В C I-O-I エームーエ

Draw a ceramide with a (16:1n-7) fatty acid attached

Which functional group is found in proteins? Carbonyl Phosphate Proteinyl Amino Hydroxyl

This macromolecule is readily available and used extensively.The molecule below is a H H HHH C-H H-C-o HHHH HHHH HHHH H H C-C -C-C H-C-o HHHH H H H H HHH H. H H o-0-H a saturated fatty acid amino acid monounsaturated fatty acid O triglyceride O polyunsaturated fatty acid I-o-z I-O-I I-O-I I-0-I I-O-I I-0-I

In 3 sentences, explain this.   Discuss the difference between an ⍺-D-glucose and a β-D-glucose. How can the structure of a monosaccharide affect its bioactivity?

12 A Aa v AaBbCcDc AaBbCcDdEe AaBbCcDdE AaBbCcDdE Uv ab x, x A A v 三三三=|這、| 4、 Caption Emphasis Heading 1 Heading 3 Q2. Complete the table below with a tick to show which of the following statements describe the molecules. Statement Alpha glucose Fatty acid Amino Nucleotide acid A hexose sugar Insoluble in water Formed by condensation reactions Contain the elements, C, H and Contains the element, N Has a carboxyl group, -COOH Forms polypeptides >

Considering the monosaccharide transformation given below, what is the name of the depicted reaction? но. OH OH OPN v OH OH Amination Anomeric dehydration Reduction C1 oxidation C6 oxidation

b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding involving the peptide bond. Describe what is going on to further stabilize secondary structure through these interactions.