Active transport and Organelles Flashcards

(26 cards)

1
Q

Primary Active transport

A

the process is directly using ATP to send solutes against the gradient.
Sodium - potassium is found in all cells

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2
Q

secondary Active transport

A

Not directly using ATP.

Neighbor is paying for the Wifi but you use it too

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3
Q

Antiporters

A

Secondary transport, carries two substances across the membrane in opposite directions

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4
Q

Symporters

A

secondary trans, carries two substances across the membrane in the same direction

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5
Q

Vesicle

A

a small spherical sac formed by bedding off from the membrane.

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6
Q

Endocytosis

A

materials enter the cell in a vesicle formed of the cell membrane

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7
Q

Exocytosis

A

vesicles fuse with the cell membrane releasing their contents

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8
Q

Transcytosis

A

a combination of endo and exo cytosis

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9
Q

the Forms of Endocytosis

A

Receptor- mediated, Phagocytosis, bulk- phase

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10
Q

Receptor mediated endocytosis

A

substances are “caught” but receptors, the receptors then sink into the cell, forming a vesicle

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11
Q

Phagocytosis

A

A cells reaches pseudopod arms out to catch a virus and drags the virus into itself where it is destroyed

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12
Q

Bulk- phase endocytosis

A

if it was raining and every drop of water that hit the cell created a vesicle.

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13
Q

Cytosol

A

intracellular fluid surrounding the organelles, the site of ATP releasing chemical reactions. building blocks to cell maintenance, structure, growth

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14
Q

Organelles

A

specialized structures within a cell

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15
Q

Cytoskeleton

A

a network of protein filaments that extends throughout the cytosol. 3 types: micro, intermediate, microtubules

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16
Q

Microfilaments

A

generate movement and mechanical support

17
Q

Intermediate filaments

A

resist mechanical stress

18
Q

microtubules

A

move proteins and organelles, determine cell shape

19
Q

Centrosome

A

an organelle located near the nucleus. has 2 components: 2 centrioles, and pericentriolar material

20
Q

Cilia

A

short, hair like projections from the cell. moves fluids along a cell surface

21
Q

Flagella

A

longer than cilia, they can move an entire cell. the only example is sperm

22
Q

Ribosomes

A

sites of protein synthesis. can be attached to another structure or free in the cytosol

23
Q

Endoplasmic Reticulum

A

network of membranes in the shape of flattened sacs or tubules

24
Q

Rough Er

A

connected to the nucleus envelope is a series of flattened sacs with ribosomes attached to it. produces various proteins

25
Sooth Er
network of membrane tubules without ribosomes. synthesis of fatty acids, steroids, detoxifies certain drugs
26
Golgi Complex
3 - 20 flattened, membranous sacs called cisternae. modify, sort, and package proteins for transport to different destinations.