Exam 1-Ex. 3&4 Flashcards

1
Q

External boundary of cell;regulates flow of materials into and out of the cell

A

Plasma Membrane

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2
Q

Contains digestive enzymes for many varieties; “Suicide Sac” of the cell

A

Lysosomes

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3
Q

Scattered throughout the cell;Major site of ATP Synthesis

A

Mitochondria

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4
Q

Slender extensions of the plasma membrane that increase its surface area

A

Microvilli

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5
Q

Stored glycogen granules, crystals, pigments, and so on

A

Inclusions

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6
Q

Membranous system consisting of flattened sacs and vesicles;packages proteins for export

A

Golgi Apparatus

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7
Q

Control center of the cell; Necessary for cell division and cell life

A

Nucleus

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8
Q

Two rod-shaped bodies near the nucleus;Basis of cilia

A

Centrioles

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9
Q

Dense,darkly staining nuclear body; Packaging site for ribosomes

A

Nucleolus

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10
Q

Contractile elements of the cytoskeleton

A

Microfilament

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11
Q

Membranous system that has smooth and rough varieties

A

Endoplasmic Reticulum

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12
Q

Attached to membrane systems or scattered in the cytoplasm; Synthesize proteins

A

Ribosomes

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13
Q

Threadlike structures in the nucleus; Contain genetic materal

A

Chromatin

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14
Q

Site where harmful chemicals are detoxified

A

Peroxisome

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15
Q

Chromosomes line up in the center of the cell

A

Metaphase

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16
Q

The chromosomes are V-shaped

A

Anaphase

17
Q

Chromosomes stop moving towards the poles

A

Anaphase

18
Q

Chromatin coils and condenses, forming chromosomes

A

Prophase

19
Q

Nuclear envelope fragments

A

Prophase

20
Q

Mitotic spindle forms

A

Prophase

21
Q

Chromosomes first appear to be double

A

Prophase

22
Q

Chromosomes attach to the spindle fibers

A

Prophase

23
Q

Nuclear envelope is absent

A

Prophase

24
Q

Movement from higher concentration to lower concentration

A

Diffusion

25
Q

Diffusion of water through semi-permeable membrane

A

Osmosis

26
Q

No energy required

A

Passive

27
Q

Energy required

A

Active