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Explain why animals that live in the tundra may have

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Explain why animals that live in the tundra may have phospholipids with more double bonds in their fatty acids than animals that live in the desert. Lipids & Carbs 500 Answer: More double bonds = unsaturated. Double bonds create kinks in the fatty acid chains that prevent them from solidifying in cold temps. Tundras are colder than deserts, so in order to prevent solidification of the cell membrane, tundra animals may have more double bonds in the fatty acid components of the phospholipids which make up the cell membrane. Proteins 100 Draw an amino acid and label its parts. Proteins 100 Answer: Proteins 200 What holds the tertiary structure of polypeptides together? Proteins 200 Answer: Interactions between R-groups: ionic interactions, disulfide bridges, hydrophobic hiding & hydrogen bonding
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Proteins 300 Explain why a decrease in pH can denature an enzyme. Proteins 300 Answer: A decrease in pH means an increase in H + ions. The H + will interact with the charged and polar R-groups and disrupt their bonds with each other. This will disrupt the tertiary structure of the protein. Since the enzymes function is dependent upon its specific shape, unraveling the tertiary structure renders the enzyme useless. Proteins 400 What type of protein structure is labeled Bin the picture below? Proteins 400 Answer: Secondary structure - pleated sheet Proteins 500 Amino acids are classified according to the properties of their R-groups. What type of interaction is this amino acid likely to have in tertiary structure? Proteins
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Explain why animals that live in the tundra may have...

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