Eukaryotic Cell Structures Flashcards
• Name the major eukaryotic organelles, describe their characteristic features and their functions. • Know the composition and unique features of eukaryotic membrane. • Describe the difference in secretion and uptake between eukaryotes and prokaryotes.
Three important functions of the eukaryotic internal membrane
- Large membrane surfaces
- Transport system
- Partitioning cell interior
(T/F) The eukaryotic membrane contains phopholipids like bacteria
True, they form lipid bilayers
Eukaryotic membranes contain what kind of sterol?
___ for mammals
___ for fungi
Cholesterol
Ergosterol
Lipid rafts
- unique to
- enriched in
- contribute to
- serves as
Eukaryotic cells
Sterols & sphingolipids
Strength of plasma membrane
Organizing centers
What eukaryotic component helps organize the contents of the cytoplasm?
The cytoskeleton
What is the name of the structure that is considered actin filaments and helps with movement of internal structures
Microfilaments
What cytoskeleton filament is only identifiable in animals?
Intermediate filaments
What is the name of the structure that assists in chromosome segregation?
Microtubules
How, and in what direction, are materials moved in the endocytic pathway?
They are moved from outside to inside the cell by organelles and vesicles
What pathway is responsible for getting materials outside the cell, or from one location to another?
Secretory pathway
What is the endoplasmic reticulum the major site for?
Cell membrane synthesis
(T/F) There are several different pathways for endocytosis
True
(T/F) The end products of endocytosis end up in the endosome
False, lysosome
What is the name of the cell organelle that is responsible for the generation of ATP and the TCA cycle?
Mitochondria
What is the name of the cell organelle that is responsible for photosynthesis?
Chloroplasts
