Chapter 2 - Overview Of Cell And Plasma Membrane Flashcards

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1
Q

(1) consist of a plasma membrane, an inner cytoplasm with numerous organelles, and other cellular structures.

A
  1. Cells
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2
Q

Cytosol

A

The fluid portion of a cell.

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3
Q

The (1) is the genetic center of cells and consists of fluid karyoplasm, chromatin (which contains (2)), and the nucleolus.

A
  1. Nucleus
  2. DNA
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4
Q

What 3 things does the cytoskeleton consist of? It is also involved in maintaining cell (4), fixing (5), and directing some (6) activity.

A
  1. Microtubules
  2. Intermediate filaments
  3. Microfilaments
  4. Shape
  5. Organelles
  6. Cellular
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5
Q

Mitochondria

A

The energy producing structures of the cell.

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6
Q

Golgi apparatus

A

Assembles complex biomolecules and transports them out of the cell.

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7
Q

Proteins are made in the cell by (1). If (1) are found by themselves in the cytoplasm they are termed (2). If (1) are found attached to the rough endoplasmic reticulum they are (3).

A
  1. Ribosomes
  2. Free
  3. Bound
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8
Q

The (1) endoplasmic reticulum is in charge of making cellular proteins. The (2) endoplasmic reticulum is in charge of making lipids and breaking down (3) cellular materials.

A
  1. Rough
  2. Smooth
  3. Toxic
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9
Q

(1) are cellular sacs that hold liquids.

A
  1. Vesicles
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10
Q

(1) vesicles ingest material into the cell.

A
  1. Phagocytic
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11
Q

Lysosome

A

Contains digestive enzymes.

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12
Q

Peroxisomes

A

Degrades toxic hydrogen peroxide in cells.

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13
Q

Centrioles

A

Microtubules that are grouped together and are involved in cell division.

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14
Q

The (1) is composed of a phospholipid bilayer. This bilayer has (2) molecules on the outside and inside of the (1) and a (3) layer in-between.

A
  1. Plasma membrane
  2. Phosphate
  3. Lipid
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15
Q

(1) molecules occur within the membrane, and depending on their concentration they can make the membrane stiff or more fluid

A
  1. Cholesterol
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16
Q

What proteins are found on the outside of the plasma membrane?

A

Peripheral proteins

17
Q

What proteins can pass through the plasma membrane?

A

Integral proteins

18
Q

Integral proteins frequently make up (1) or (2) that allow materials to pass through the membrane.

A
  1. Gates
  2. Channels
19
Q

What is generally found attached to proteins on the cell membrane and what is their purpose?

A

Carbohydrate chains. They provide cellular identity.