• Monday, 2022/2023 Units 1-4, Online Midterm Exam
• Unit-1-4
• A total of 46 questions,
• This Midterm contributes 150 points to your overall
... [Show More] grade, and it is online.
• The comprehensive exam covers units 1, 2, 3 and 4. The 2 hours exam includes TCOs 1–8.
• There are 40 multiple choice questions worth 3 points each (120 points total), two matching questions worth 5 points each (10 points
total), two short answer questions worth 5 points each (10 points total) and two select all that apply 5 points (10 points total).
1. Question: Anabolic reactions characteristics
• forming large molecules from smaller molecules
2. Question: Chemical reactions that can proceed toward either anabolism or
catabolism are called_ what_?
• amphibolic
3. Question: Catabolic reactions characteristics
• Catabolic reactions break down larger molecules, such as carbohydrates, lipids, and proteins from ingested food, into their constituent smaller parts. They also include the
breakdown of ATP, which releases the energy needed for metabolic processes in all cells throughout the body.
4. Question: The molecule that an enzyme acts upon is known as called_ what_?
• substrate
5. Question: Enzymes known as lyases participate in what_ reactions?
• catabolic
6. Question: Role of an enzyme in a chemical reaction in a cell?
• Enzymes speed up chemical reactions that take place in cells--the activation energy affects their function
7. Question: Which are glycolysis steps?
Step 1: Hexokinase. ...
Step 2: Phosphoglucose Isomerase. ...
Step 3: Phosphofructokinase. ...
Step 4: Aldolase. ...
Step 5: Triosephosphate isomerase. ...
Step 6: Glyceraldehyde-3-phosphate Dehydrogenase. ...
Step 7: Phosphoglycerate Kinase. ...
Step 8: Phosphoglycerate Mutase Step 9: Enolase
Step 10: Pyruvate Kinase
8. Question: What_ is fermentation?
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.
9. Question: What_ is Krebs cycle?
The Krebs cycle is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidization of acetate—derived from carbohydrates, fats, and proteins —into carbon dioxide. Theoretically there are several alternatives to the TCA cycle, but the TCA cycle appears to be the most efficient.
10. Question: Anaerobic bacteria use what_ as final electron acceptors in respiration?
• NO3-
11. Question: The metabolic processes called_ fermentation produces
what_?
• Enzymes speed up chemical reactions that take place in cells--the activation energy affects their function
12. Question: What_ are electron carrier molecule where are they derived from?
In glucose metabolism, the electrons come from electron carriers. The electrons on the electron carriers come from the oxidation of glucose.
13. Question: When does_ DNA Replication occurs during cell cycle?
• Interphase
14. Question: When does_ Sister chromatids separate and move toward the
poles of the cell during in mitotic cell division?
• Anaphase of Mitosis
15. Question: What_ is an aligned pair of homologous chromosomes called_?
• Tetrad
16. Question: What_ is the entire interwoven mass of one multicellular fungal
organism called_?
• Mycelium
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