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A&P 1 > Unit 3 - Cell Review > Flashcards

Unit 3 - Cell Review Flashcards

1
Q

What are the simplest units of all living matter?

A

Cells

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2
Q

There are @ 200 different types _______ in the human body

A

Cells (# of types)

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3
Q

Cells that are 7.5 um in diameter

A

Red Blood Cell (size)

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4
Q

Cells that are 100 um in diameter

A

Human ovum (size)

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5
Q

1 of 3 Basic structures of a cell

A

Cell membrane

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6
Q

2 of 3 Basic structures of a cell

A

Nucleus

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7
Q

3 of 3 Basic structures of a cell

A

Cytoplasm

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8
Q

Substructure of Cytoplasm

A

Cytosol

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9
Q

1/3 Key structures of a cell membrane

A

Phospolipids

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10
Q

2/3 Key structures of a cell membrane

A

Cholesterol

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11
Q

3/3 Key structures of a cell membrane

A

Proteins

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12
Q

Regulates the passage of substances into & out of cell

A

Cell Membrane

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13
Q

3 Characteristics of Cell Membrane

A
  1. Positioned in a double layer 2. Form the bulk of membrane 3. Not stationary
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14
Q

The end of a phospholipid that is “water loving”

A

Phospholipid Head

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15
Q

The end of a phospholipid that is “water-fearing”

A

Phospholipid Tail

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16
Q

Stiffens & strengthens the plasma membrane

A

Cholesterol Molecules

17
Q

3 Types of Proteins in membranes

A
  1. Channel 2. Receptors 3. Marker
18
Q

Cells with no nucleus

A

Red blood cells

19
Q

Surrounds the nucleus

A

Nucleus envelope

20
Q

Allows molecules to pass into & out of nucleus

A

Nuclear pores

21
Q

Extends throughout nucleoplasma & Composed of strands of DNA & proteins

A

Chromatin (role)

22
Q

Fills cytoplasm/cystosol - has 5 Structures

A

Organelles

23
Q

A network of membranous canals & curving sacs throughout cytoplasm

A

Endoplasmic Reticulum (ER)

24
Q

Ribosomes dot surface - Site of protein synthesis

25
Q

No ribosomes - Synthesises certain lipids and carbs

26
Q

Function: “Shipping & Receiving” - Receives proteins. Prepares & Packages for export

A

Golgi Apparatus (function)

27
Q

2 lie perpendicular outside molecules

A

Centrioles (how they lie)

28
Q

Microtubule (protein) bundles

A

Centrioles (made of)

29
Q

Play role in cell division

A

Centrioles (Function)

30
Q

Membranous vesciles formed from pinched-off pieces of Golgi Apparatus. Cellular “garbage disposal”

A

Lysosomes (location)

31
Q

Cellular “garbage disposal” - Contains enzymes to break down unused proteins

A

Lysosomes (function)

32
Q

Powerhouse of cell

A

Mitochondria

33
Q

Framework of the cell: 1.Determines shape 2.Strengthens cell 3.Allows cell to move

A

Cytoskeleton

34
Q

Cellular extensions that 1.Increase surface area, 2.Are folds of membranes 3.Found in cells charged with absorbing nutrients Ex.Intestines

A

Microvilli

35
Q

Cellular extensions that 1.Propels substance forward 2.Hair-like 3.Found where microbes & debris need to be removed. Ex.Lungs

A&P 1 (5 decks)

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