BIOS 255 Comprehensive Exam 1
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BIOS 255 Comprehensive Exam 1
- Most homeostatic regulatory mechanisms involve which feedback system?-
Answer: Negative
- What is the name of the serous membrane that lines the surface of the stomach?
Answer: Visceral peritoneum
- A molecule that has an unequal number of protons and neutrons is known as an
Answer: ion
- Which type of chemical reaction consists of breaking down large molecules into smaller
ones?
Answer: Decomposition
- Which of the following macromolecules plays a specific role in producing sex steroids?
Answer: Cholesterol
- Which organelle specializes in packaging, transporting, and modifying proteins produced by
the rough ER?
Answer: Golgi apparatus
- Which are forms of passive transport?
Answer: Simple diffusion Osmosis
- Which molecule makes up the majority of the plasma membrane?
Answer: Phospho- lipids
- During which cellular stage is DNA replicated?
Answer: S-phase
- What does the extracellular matrix consist of?
Answer: Ground substance Protein fibers
- Which of the following cells of nervous tissue are responsible for generating electrical
impulses?
Answer: Neurons
- What type of solution would cause water to enter red blood cells, causing the cells to swell
and potentially burst?
Answer: Hypotonic solution
- Which of the following layers of the epidermis undergoes mitosis to re- place damaged or
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lost cells, pushing old cells upward to be shed?