Lecture 3 Flashcards

1
Q

The ____ is the powerhouse of the cell where most ATP is produced.

A

MITOCHONDRIA

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2
Q

_______ junctions attach cells to one another or to the extra cellular matrix

A

ANCHORING

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3
Q

_________ are vesicles that contain enzymes that break down long-chain fatty acids and potentially toxic foreign molecules.

A

PEROXISOMES

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4
Q

_______ is the process that allows developing cells to transform into different cell types

A

DIFFERENTIATION

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5
Q

_______ are short, hair-like structures that beat to produce currents in fluids.

A

CILIA

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6
Q

Microfilaments are the thinnest cytoskeleton protein fibers composed of __________.

A

ACTIN

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7
Q

The cell adhesion molecules primarily found in cell-matrix junctions are _________.

A

INTEGRINS

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8
Q

The nucleosis is the site of ribosomal RNA synthesis.

A

TRUE

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9
Q

The two most abundant biomolecules found in the cell membrane are lipids and carbohydrates

A

FALSE

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10
Q

Cells undergoing necrosis lead to damage and inflammation of surrounding cells and tissues

A

TRUE

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11
Q

Claudine are cylindrical proteins found in gap junctions.

A

FALSE

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12
Q

Interstitial fluid is found within cells.

A

FALSE

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13
Q

Microvilli increase cell surface area and are supported by microfilaments.

A

TRUE

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14
Q

Proteoglycans are a basic component of the extracellular matrix.

A

TRUE

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15
Q

Which organelle is the main site for the synthesis of fatty acids, steroids, and lipids?

A

SMOOTH ENDOPLASMIC RETICULUM

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16
Q

The following statements are true EXCEPT:

A

The SER has ribosomes and is attached to the nuclear envelope and RER

17
Q

Which of the following lipids make up the cell membrane?

A

Cholesterol and phospholipids

18
Q

Which of the following (if any) is NOT TRUE concerning the flagella?

A

It is made of microfilaments in a 9+2 arrangement.

19
Q

All of the following are types of anchoring junctions EXCEPT:

A

OCCLUDING JUNCTIONS

20
Q

Which of the following is NOT a membranous organelle?

A

RIBOSOME