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match the monomer on the left to the macromolecules on the right. fatty…

Question

match the monomer on the left to the macromolecules on the right.
fatty acid and glycerol
monosaccharide
nucleotide
amino acid
a. protein
b. lipid
c. nucleic acid
d. carbohydrate

match the elements on the left to the macromolecules on the right.
protein
lipid
nucleic acid
carbohydrate
a. c, h, o
b. c, h, o in 1:2:1
c. c, h, o, n
d. c, h, o, n, p

match the functions of the macromolecules.
genetic material/dna/rna
fast energy/support/signaling
enzymes/movement/transport
stored energy/insulation/hormones
a. protein
b. lipid
c. nucleic acid
d. carbohydrate

label the images with their correct macromolecules

write a response explaining why chemicals are important in biology; explain what are the building blocks that sustain life.

explain how an enzyme catalyzes reactions using activation energy.

identify factors, such as ph and temperature, and explain how they can affect enzyme activity.

Explanation:

Response
Part 1: Match monomer to macromolecule
  • Fatty acid and glycerol: Monomers of Lipids (B). Lipids are formed by the esterification of fatty acids and glycerol.
  • Monosaccharide: Monomer of Carbohydrates (D). Carbohydrates (like starch, glycogen) are polymers of monosaccharides (e.g., glucose).
  • Nucleotide: Monomer of Nucleic Acids (C). DNA and RNA are made of nucleotide monomers (sugar, phosphate, base).
  • Amino acid: Monomer of Proteins (A). Proteins are polymers of amino acids linked by peptide bonds.
Part 2: Match elements to macromolecule
  • Protein: Contains C, H, O, N (C). Proteins have nitrogen in their amino acid structure.
  • Lipid: Contains C, H, O (A, but often with a higher H:O ratio; some lipids may have P/N, but the simplest match here is A for basic lipid structure).
  • Nucleic Acid: Contains C, H, O, N, P (D). Nucleotides have a phosphate group (P) and nitrogenous base (N).
  • Carbohydrate: Contains C, H, O in 1:2:1 ratio (B), e.g., glucose ($\ce{C6H12O6}$).
Part 3: Match function to macromolecule
  • Genetic material/DNA/RNA: Nucleic Acid (C). DNA and RNA store and transmit genetic information.
  • Fast energy/support/signaling: Carbohydrate (D). Carbohydrates (e.g., glucose) provide quick energy; structural carbs (e.g., cellulose) support cells.
  • Enzymes/movement/transport: Protein (A). Proteins act as enzymes, form muscle (movement), and transport molecules (e.g., hemoglobin).
  • Stored energy/insulation/hormones: Lipid (B). Lipids (e.g., fats) store energy, insulate, and include steroid hormones.
Part 4: Label images with macromolecules
  • Amino acid structure (with R - group): Protein (monomer, so the image with the amino acid structure labels as Protein).
  • Nucleotide (sugar, phosphate, base): Nucleic Acid (monomer, so the nucleotide image labels as Nucleic Acid).
  • Monosaccharide (hexose ring): Carbohydrate (monomer, so the sugar ring image labels as Carbohydrate).
  • Fatty acid chain (long hydrocarbon): Lipid (monomer component, so the fatty acid chain image labels as Lipid).
Part 5: Explain enzyme catalysis (activation energy)

Enzymes lower the activation energy ($E_a$) of a reaction. The activation energy is the energy needed to start a reaction. In the energy diagram:

  • Without enzyme (dashed line): Higher $E_a$ (larger "hill" to overcome).
  • With enzyme (solid line): Lower $E_a$ (smaller "hill").

By stabilizing the transition state, enzymes make reactions faster (more reactants reach $E_a$ to form products).

Part 6: Importance of chemicals (building blocks) in biology
  • Carbohydrates: Provide energy (glucose) and structure (cellulose in plants).
  • Lipids: Store energy (fats), insulate, and form cell membranes (phospholipids).
  • Proteins: Perform most cellular functions (enzymes, structure, transport, signaling).
  • Nucleic Acids: Store (DNA) and transmit (RNA) genetic information, essential for inheritance and protein synthesis.

These macromolecules are the "building blocks" (monomers polymerize into them) that sustain life by enabling energy, structure, and information flow.

Part 7: Factors affecting enzyme activity (pH, temperature)
  • Temperature:
  • Low temp: Slows molecular motion, reduces enzyme - substrate collisions.
  • Optimal temp: Maximum collision frequency and proper enzyme structure (e.g., human enzymes ~37°C).
  • High temp: Denatures enzymes (breaks bonds, changes active site shape), reducing activity.
  • pH:
  • Enzymes have an optimal pH (e.g., pepsin ~pH 2, trypsin ~pH 8).
  • D…

Answer:

s (Key Matches):

  1. Monomer - Macromolecule:
  • Fatty acid/glycerol → B (Lipid)
  • Monosaccharide → D (Carbohydrate)
  • Nucleotide → C (Nucleic Acid)
  • Amino acid → A (Protein)
  1. Elements - Macromolecule:
  • Protein → C (C, H, O, N)
  • Lipid → A (C, H, O)
  • Nucleic Acid → D (C, H, O, N, P)
  • Carbohydrate → B (C, H, O; 1:2:1)
  1. Function - Macromolecule:
  • Genetic material → C (Nucleic Acid)
  • Fast energy → D (Carbohydrate)
  • Enzymes/movement → A (Protein)
  • Stored energy → B (Lipid)
  1. Image Labeling (example, based on typical structures):
  • Amino acid structure → Protein
  • Nucleotide → Nucleic Acid
  • Monosaccharide → Carbohydrate
  • Fatty acid chain → Lipid

(For the written response and enzyme explanation, refer to the detailed explanations above.)