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Student Academic Learning Services Cells and Cell Metabolism Quiz Page 1 of 4 1. Which one of the following is NOT true about the cell membrane: A) B) C) D) E) It consists of two lipid layers. Its lipid components are primarily phospholipids and cholesterol. It contains proteins for specialized functions. It regulates the entry and exit of cell materials. It allows water soluble molecules to pass through easily. 2. Ribosomes are found: A) B) C) D) E) on smooth endoplasmic reticulum. in the cytoplasm. on the golgi apparatus. on the rough endoplasmic reticulum. in the cytoplasm and on the rough endoplasmic reticulum. 3. The movement of fluid through the cell membrane from a high pressure area to a low pressure area is called: A) B) C) D) E) active transport. bulk transport. osmosis. diffusion. filtration. 4. Two types of passive transport are: A) B) C) D) E) osmosis and endocytosis. endocytosis and diffusion. diffusion and filtration. filtration and exocytosis. exocytosis and endocytosis 5. A cell would plump with water and possibly lyse in which of the following solutions: A) B) C) D) E) hypotonic hypertonic intravenous isotonic hydrostatic www.durhamcollege.ca/sals 905.721.2000 ext. 2491 Student Services Building (SSB), Room 204 This document last updated: 7/29/2011 Student Academic Learning Services Page 2 of 4 6. What does it mean to say the plasma membrane is “selectively permeable”? A) B) C) D) It allows everything to enter but is selective about what leaves. The membrane is permeable only during optimal cell conditions. It allows some substances to pass through and keeps others out. It is selective about what enters but will allow everything to leave the cell. 7. The plasma membrane contains all of the following EXCEPT: A) B) C) D) hydrophilic heads cholesterol hydrophilic tails glycoproteins 8. In order to enter Kreb’s cycle, fatty acid chains must be broken apart. This process is called: A) B) C) D) beta oxidation lipogenesis lipolysis pyruvate dehydrogenase 9. mRNA is made from the DNA during _______, and protein is produced from the mRNA template during _______. A) B) C) D) translation; transcription transcription; translation replication; translation transcription; beta oxidation 10. The molecule that carries an amino acid to the ribosome for incorporation into a protein is: A) B) C) D) E) ATP messenger RNA (mRNA) ribosomal RNA (rRNA) DNA transfer RNA (tRNA) 11. The molecule that is made during transcription is: A) B) C) D) E) ATP messenger RNA (mRNA) ribosomal RNA (rRNA) DNA transfer RNA (tRNA) www.durhamcollege.ca/sals 905.721.2000 ext. 2491 Student Services Building (SSB), Room 204 This document last updated: 7/29/2011 Student Academic Learning Services Page 3 of 4 12. The DNA segment that carries information coding for a particular amino acid is a: A) B) C) D) E) gene nucleotide three base sequence deoxyribose sugar phosphate group 13. Which of the following statements best describes enzymes? A) B) C) D) Carbohydrates that are involved in chemical reactions. Proteins that regulate chemical reactions in living things. The final products of chemical reactions in living things. The reactants of chemical reactions in living things. 14. Enzymes facilitate chemical reactions through interactions between the enzyme’s active site and substrate molecules. A) True B) False 15. How many ATP are formed during anaerobic respiration? A) B) C) D) E) 38 24 8 2 36 www.durhamcollege.ca/sals 905.721.2000 ext. 2491 Student Services Building (SSB), Room 204 This document last updated: 7/29/2011 Student Academic Learning Services Page 4 of 4 Solutions 1. E 2. E 3. E 4. C 5. A 6. C 7. C 8. A 9. B 10. E 11. B 12. C 13. B 14. A 15. D www.durhamcollege.ca/sals 905.721.2000 ext. 2491 Student Services Building (SSB), Room 204 This document last updated: 7/29/2011