Sophia - Human Biology - Unit 1 Challenge 3.
1 — Proteins
Identify the makeup of proteins.
Three or more amino acids joined together form a
... [Show More] __________.
• a.) polypeptide chain
• b.) protein
• c.) nucleic acid
• d.) peptide bond
2 — Lipids
Understand the elements and behavior of lipids.
What type of lipids would increase the chances of health disorders if consumed regularly through diet?
• a.) Trans fat
• b.) Triglyceride
• c.) Sterol
• d.) Phospholipid
3 — Nucleic Acids
Identify the elements of nucleic acids.
Which of the following is present only in DNA?
• a.) Thymine
• b.) Adenine
• c.) Cytosine
• d.) Guanine
4 — Carbohydrates
Understand the elements of carbohydrates and their role in the cell.
Which of the following is true of an oligosaccharide?
• a.) It has no sugar units.
• b.) It has two or more sugar units.
• c.) It has one sugar unit.
• d.) It has exactly two sugar units.
5 — Metabolism
Determine different types of metabolism and the roles they play.
What is it called when larger molecules are broken down into smaller ones?
• a.) Cellular respiration
• b.) ATP production
• c.) Anabolism
• d.) Catabolism
6 — ATP Production Overview
Identify the basics of ATP production.
The process by which molecules are converted into energy is called __________.
• a.) glycolysis
• b.) cellular respiration
• c.) the Krebs cycle
• d.) metabolism
7 — Glycolysis
Determine the process of glycolysis.
Which of the following statements is true?
• a.) Glycolysis occurs within the cytoplasm.
• b.) Glycolysis does not produce any ATP.
• c.) Glycolysis requires oxygen to occur.
• d.) Glycolysis is the second phase of cellular respiration.
8 — Krebs Cycle
Understand the Krebs cycle.
How many molecules of ATP are produced during the Krebs cycle?
• a.) Two
• b.) Four
• c.) Six
• d.) Zero
9 — Electron Transport Chain
Understand the Electron Transport Chain.
The electron transport chain receives products from which other process(es)?
• a.) Glycolysis and the Krebs cycle
• b.) Glycolysis only
• c.) The Krebs cycle only
• d.) Homeostasis
10 — Enzymes
Identify the structure and function of enzymes.
Which of the following statements about enzymes is true?
• a.) Salivary amylase is an enzyme made up of lipids.
• b.) The active site is the same shape for every enzyme in your body.
• c.) Enzymes produce a product that is changed physically but remains the same chemically.
• d.) The substance remaining after a reaction carried out by an enzyme is called the product. [Show Less]