Flashcards
Cellbiologi - lektion 1, organeller och cell intro
Cards in this deck (19)
- 1Nuclear envelopedubbelmembranet runt cellkärnan
porer som underlättar transport - 2MitrokondrieEget DNA och ribosomer
Inre membraner är veckat (kallas Crista)
Har ett "matrix"
(muskelceller har många mitrokondrier) - 3KloroplastDubbelmembran
Stromal matrix rich in metabolic enzymes, DNA and ribosomes (?)
eget DNA - 4Thylakoidsmembrane-bound compartments inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis.
- 5Chlorophyllare arranged in and around photosystems that are embedded in the thylakoid membranes of chloroplasts.
any of several related green pigments found in the mesosomes of cyanobacteria and in the chloroplasts of algae and plants. Chlorophyll is essential in photosynthesis, allowing plants to absorb energy from light. - 6Endoplasmatiska retikulum- continuous with the nuclear
envelope
- synthesis/modification of lipids and
proteins
"An irregular maze of interconnected
spaces enclosed by a membrane (Figure 1–22). It is the site where most
cell-membrane components, as well as materials destined for export
from the cell, are made." - 7Golgi apparatenmodifiering, sortering och packning av proteiner och lipider för sekretion eller leverans till organell
- 8Lysosomintercellulär nedbrytning
- 9Peroxisommembrane-bound organelles (excreted
by Golgi) that contain enzymes for
oxidation (oxidase) of amino acids and
detoxifying (catalase) harmful
substances - 10Cytosolthe cytosol is the part of the cytoplasm that is not contained within
intracellular membranes. It contains a host of large and small molecules, crowded
together so closely that it behaves more like a water-based gel than a liquid solution. - 11cytoskeleton- mechanical strength
- responsible for cell shape and
movements/transport
- composed of three major filament
types:
actin filaments, intermediate filaments and microtubules - 12Nuclear laminaa dense fibrillar network inside the nucleus of most cells. It is composed of intermediate filaments and membrane associated proteins.
- 13Microtubili- thickest
- formed by polymerisation of tubulin dimer subunits
- polarized (+ and -)
- cilia och flagella - 14Actin filaments- thinnest
- a central part of the machinery responsible for muscle contraction - 15Intermediate filamentsserve to strengthen most animal cells
- 16Centrosomedynamic microtubule-organising centre near the nucleus
- 17Motor proteinsDYNEIN & KINESIN
- 18Muscle contractionactin filaments slide against myosin filaments
triggered by a rise of cytosolic Ca2+ influx - 19Vacuole(in plants) regulating
concentration of water in changing
environmental conditions
...
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- User has deleted their subject information Flashcards on Cellbiologi - lektion 1, organeller och cell intro, created by Deleted user on 19/02/2021.
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- Created by Tova A · Jan 18, 2021
- Copied by Tova A · Feb 19, 2021
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