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NWHSU Histology 1 - Exam 1 Questions and Answers (100% Pass)

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NWHSU Histology 1 - Exam 1 Questions and Answers (100% Pass)

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  • October 29, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NWHSU
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NWHSU Histology 1 - Exam 1
Questions and Answers (100% Pass)
What is the term for a storage of charge across a membrane


✓ capacitance




what is the difference of charge on the inside of a membrane


✓ -70mv




what are 5 characteristics of a bilipid layer


✓ 1. thin membrane

✓ 2. semipereability

✓ 3. allows protein to float around (fluid mosaic)

✓ 4. membrane proteins control what comes in, and goes out of the cell

✓ 5. gycocalyx




what is the function of the glycocalyx


✓ adhesion and communication




give 2 examples of organelles with double unit membranes



Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ nucleus, mitochondria




give 3 examples of organelles with a single unit membrane


✓ rER, sER, and lysosomes




what is caused by a decrease in myelenation of axons


✓ Multiple sclerosis




why does the cell membrane need to be thin


✓ to let necessary chemicals in/out of the cell




what is the purpose of cell wall thickening


✓ protection




Compare and contrast: Mitochondrion vs. nucleus


✓ 1. both have double unit membrane

✓ 2.Mitochondria makes ATP, Nucleus is the control center of the cell




compare and contrast: centrioles vs. microtubules




Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ 1.centrioles are organelles and microtubules are modification of the

membrane

✓ 2. both are involved in forming mitotic spindles

✓ 3.both are non-membrane bound

✓ 4. centrioles -> basal bodies to anchor microtubules




compare and contrast : microvilli vs cilia


✓ 1. both are extensions of the membrane

✓ 2.cilia are long and microvilli are short

✓ 3.cilia are movement, microvilli are absorption

✓ 4. cilia have 9 doublets and 2 singlets




compare and contrast: microtubules vs microfilaments


✓ 1.both are non-membrane bound

✓ 2.microtubules are hollow, microfilaments are solid

✓ 3.microtubules are the core of cilia, microfilaments are core of microvilli

✓ 4.microtubules are bigger than microfilaments




compare and contrast: ribosomes vs. nucleolus




Master01 | October, 2024/2025 | Latest update

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