Active transport and Organelles Flashcards

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
Q

Sooth Er

A

network of membrane tubules without ribosomes. synthesis of fatty acids, steroids, detoxifies certain drugs

26
Q

Golgi Complex

A

3 - 20 flattened, membranous sacs called cisternae. modify, sort, and package proteins for transport to different destinations.