Eukaryotic cell Flashcards

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1
Q

Cytosol

A

allows for the diffusion of molecules through out the cell

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2
Q

Nucleus

A

genetic material is encoded in DNA and organized in chromosomes

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3
Q

Mitosis

A

formation of two identical daughter cells

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4
Q

Histones

A

organizing proteins that wounds up the linear DNA

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5
Q

Nucleolus

A

where the ribosomal RNA is synthesized

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6
Q

Mitochondria

A

the power house of the cell, meaning the metabolic functions for energy and forms from binary fission. Also can do apoptosis.

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7
Q

Outer membrane of the mitochondria

A

barrier from the cytosol

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8
Q

Inner membrane of the mitochondria

A

is arranged in cristae, that has all the proteins and enzyme for the electron transport chain

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9
Q

Proton-motive force

A

located in the mitochondria matrix where the ATP synthase generates ATP

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10
Q

Lysosomes

A

contains hydrolytic enzymes that are capable of breaking down different substrates like those form endocytosis. If this organelles releases this enzymes, causes apoptosis

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11
Q

ER

A

endoplasmic reticulum, is from with invaginations creating complex structures and a central lumen.

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12
Q

Rough ER

A

has ribosomes that translates proteins into the lumen

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13
Q

Smooth ER

A

does lipid synthesis and detoxification and also transport the results from the rough to the golgi

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14
Q

Golgi apparatus

A

modify and packages proteins for each function. If is destine for secretion, this happens via exocytosis

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15
Q

Peroxisomes

A

breakdowns long fatty acids via beta oxidation, it participates in phospholipid synthesis and it contain important enzymes

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16
Q

cytoskeleton

A

shape and classify as microfilaments, microtubules and intermediate filaments

17
Q

Microfilaments

A
  • made of actin, protects the cell and conducts myosin for muscle contraction.
  • cytokinesis: division of materials between daughter cells
  • mitosis: cleavage furrow, organizes as a ring at the site of division
18
Q

microtubules

A
  • tubulin proteins
  • cilia (projections in the respiratory tract and mucus) and flagella (sperm)
  • centrioles: in the centrosome, they migrate to opposite poles of the dividing cell and organize the mitotic spindle
19
Q

intermediate filaments

A
  • keratin, desmin, vimentin and lamins