Which of the following describes an amphipathic molecule?
Which of the following describes an amphipathic molecule?
Answers:
Hydrophobic and not Hydrophilic
Hydrophilic and not Hydrophobic
Hydrophobic and Hydrophilic
Nonpolar
• Question 2 Movement of a solute molecule from an area of high concentration to an area of low concentration is called:
Answers:
Diffusion
Filtration
Osmosis
Hydrostatic pressure
• Question 3 Which statement is correct regarding cellular energy?
Selected Answer:
Oxidative phosphorylation occurs in the mitochondria.
Answers:
Glycolysis is the building of sugar molecules.
Oxidative cellular metabolism is a single reaction making adenosine triphosphate (ATP).
Oxidative phosphorylation occurs in the mitochondria.
Anaerobic glycolysis occurs in the presence of oxygen.
• Question 4 A eukaryotic cell: Selected Answers:
Answers:
Is smaller than a prokaryotic cell.
Contains structures called organelles.
Lacks a well-defined nucleus.
Does not contain histones.
• Question 5 Which of the following are functions of a protein? (Select all that apply.) Selected Answers:
Answers:
Transport channels
Cell surface markers
Transport channels
Enzymes that drive pumps
Cell surface markers
Synapses for cells
• Question 6 The function of a histone found in a eukaryote cell focuses on cellular: Selected Answer:
Answers:
Division
Movement
Activities
Deoxyribonucleic acid (DNA) folding
• Question 7 Which of the following describes the term “chemotaxis”?
Answers:
Uses the second messenger system
Cellular signal affecting the cell of origin
Movement of cells along a chemical gradient
Ligand binds with receptors, triggering a second reaction
• Question 8 Which if the following is an energy-releasing process?
Answers:
Anabolism
Catabolism
Substrate-induced reaction
Second messenger system
• Question 9 An organelle that is responsible for the metabolism of cellular energy is referred to as a/an:
Answers:
Golgi complex
Mitochondrian
Endoplasmic reticulum
Nucleolus
• Question 10 Which of the following is the most common cause of cellular injury?
Answers:
Free radical-induced injury
Chemical injury
Hypoxia
Mechanical factors
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