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USABO CELL STRUCTURE AND FUNCTION QUESTIONS AND ANSWERS $9.00   Add to cart

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USABO CELL STRUCTURE AND FUNCTION QUESTIONS AND ANSWERS

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USABO CELL STRUCTURE AND FUNCTION QUESTIONS AND ANSWERS

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  • September 21, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • USABO
  • USABO
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28 Multiple choice questions

Definition 1 of 28
Found inside the nucleus and produces ribosomes and rRNA

nucleus

nuclear envelop

nuclear lamina薄片

nucleolus

Definition 2 of 28
DNA and histones are packed together to be nucleosome, nucleosome form a pack which are
called chromatin, two chromatin form a chromosome.

DNA + histone

microscopy

Peroxisomes

Golgi Apparatus

,Definition 3 of 28
- Exhibits bright green fluorescence when exposed to light in the blue to ultraviolet range
- 发光without enzymes or cofactors
- can be used in living cells




Golgi Apparatus


Eukaryotic cells characteristics

Surface area to volume ratio (SA/V)

GFP (Green Fluorescent Protein)

Definition 4 of 28
- Peroxisomes contain enzymes that transfer hydrogen to oxygen
- Peroxisomes produce hydrogen peroxide (toxic) and convert it to water
- Peroxisomes create lipids (cholesterol and dolichol)

microtubules


cytoskeleton

Peroxisomes

Lysosomes

Definition 5 of 28
- chromosome: tightly packaged DNA; found only during cell division
- chromatin: unwinded DNA; found during interphase

chromosome VS chromatin

endomembrane system

cytoplasm VS cytosol


Peroxisomes

,Definition 6 of 28




microtubules

eukaryotic cells

plant cells


animal cells

Definition 7 of 28
- • A lysosome fuses with the food vacuole and digests the molecules
- work best in the acidic environment
- Some types of cell can engulf another cell by phagocytosis
- Lysosomes also use enzymes to recycle the cell’s own organelles and macromolecules
(autophagy)

ribosome

Lysosomes

microtubules

Peroxisomes

, Definition 8 of 28
Smooth ER
– Synthesizes lipids
– Detoxifies drugs and poisons
– Stores calcium ions
Rough ER
– Has bound ribosomes, the new polypeptide chains enter the ER lumen and are modified, like
covalently attached to carbohydrates. These proteins are usually secretory or membrane
proteins
– Package proteins in transport vesicles, which go to Golgi Apparatus

Fluid Mosaic Model


Endoplasmic Reticulum

Prokaryotic cells characteristics

Electron Microscopes (EMs)

Definition 9 of 28




plant cells

Peroxisomes


microtubules

animal cells

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