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Histology > The Cell Part II > Flashcards

The Cell Part II Flashcards

1
Q

PROPERTIES OF PROTOPLASM:

A
  1. IRRITABILITY
  2. CONDUCTIVITY
  3. CONTRACTILITY
  4. RESPIRATION
  5. ABSORPTION
  6. SECRETION
  7. EXCRETION
  8. GROWTH
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2
Q

capability to respond to a stimulus

A

IRRITABILITY

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3
Q

can transmit a wave of excitation (an electrical impulse) throughout the cell from the point of stimulus

A

CONDUCTIVITY

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4
Q

highly developed in nerve cells lesser extent, in muscle cells

A

CONDUCTIVITY

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5
Q

property of changing shape in the sense of shortening

Ex. Muscle cells

A

CONTRACTILITY

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6
Q

essential for life process whereby food substances and oxygen within the cell interact chemically to produce energy, carbon dioxide and water

A

RESPIRATION

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7
Q

imbibition of materials that later may be assimilated by the cell in metabolism or otherwise utilized

A

ABSORPTION

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8
Q

process by which cell extrudes material (useful)

A

SECRETION

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9
Q

such as digestive enzyme or a hormone

A

SECRETION

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10
Q

extrusion of waste material from the cell

A

EXCRETION

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11
Q

increase in size

A

GROWTH

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12
Q

Fluid component of cytoplasm

A

CYTOSOL

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13
Q

exhibits functional interactions among organelles

A

CYTOSOL

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14
Q

Results in:

Uptake and release of material

A

CYTOSOL

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15
Q

Results in:

Protein synthesis (intracellular digestion)

A

CYTOSOL

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16
Q

metabolically active units of living matter

A

3 STRUCTURAL COMPONENTS OF CYTOPLASM ORGANELLES

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17
Q

limited by a membrane

A

3 STRUCTURAL COMPONENTS OF CYTOPLASM ORGANELLES

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18
Q

composed of a lipid bilayer and associated proteins

A

PLASMA MEMBRANE

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19
Q

envelopes the cell

A

PLASMA MEMBRANE

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20
Q

aids in maintaining its structural and functional integrity

A

PLASMA MEMBRANE

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21
Q

functions as a semipermeable membrane between the cytoplasm and the external environment

A

PLASMA MEMBRANE

22
Q

sensory device

A

PLASMA MEMBRANE

23
Q

recognize other cells and macromolecules

A

PLASMA MEMBRANE

24
Q

composed of an inner leaflet (facing the cytoplasm) and an outer leaflet (facing the extracellular environment)

A

PLASMA MEMBRANE

25
Q

exhibits a trilaminar structure (called the unit membrane)

A

PLASMA MEMBRANE

26
Q

performs special processes like:
phagocytosis, pinocytosis, exocytosis

A

PLASMA MEMBRANE

27
Q

composed of phospholipids, glycolipids, and cholesterol.

A

LIPID BILAYER

28
Q

12 nm wide and 25 nm long

A

RIBOSOMES [PALADE GRANULES]

29
Q

consist of a small and large subunit composed of several types of RNA

A

RIBOSOMES [PALADE GRANULES]

30
Q

free in the cytosol

A

RIBOSOMES [PALADE GRANULES]

31
Q

bound to membranes of the:
➢ rough endoplasmic reticulum
➢ outer nuclear membrane

A

RIBOSOMES [PALADE GRANULES]

32
Q

actual sites of protein synthesis

A

RIBOSOMES [PALADE GRANULES]

33
Q

responsible for the basophilic staining of the cytoplasm

A

RIBOSOMES [PALADE GRANULES]

34
Q

site where non-cytosolic proteins are synthesized:
Secretory
Plasma membrane
Lysosomal

A

ROUGH ENDOPLASMIC RETICULUM [RER]

35
Q

provide an area of storage and transport of proteins

A

ROUGH ENDOPLASMIC RETICULUM [RER]

36
Q

irregular network of membrane bounded channels that lack ribosomes on its surface appearing smooth

A

SMOOTH ENDOPLASMIC RETICULUM [SER]

37
Q

appears as branching anastomosing tubules or vesicles membranes

A

SMOOTH ENDOPLASMIC RETICULUM [SER]

38
Q

less common than RER

A

SMOOTH ENDOPLASMIC RETICULUM [SER]

39
Q

predominates in cells synthesizing steroids, triglycerides and cholesterol

A

SMOOTH ENDOPLASMIC RETICULUM [SER]

40
Q

Smooth endoplasmic reticulum serves different functions in different cell types:

A

● steroid hormones and lipid synthesis
● drug detoxification (liver)
● muscle contraction and relaxation

41
Q

parallel stacks of membranes (6-10) located near the nucleus

A

ANNULATE LAMELLAE

42
Q

resemble the nuclear envelope, including its pore complexes

A

ANNULATE LAMELLAE

43
Q

are continuous with the RER

A

ANNULATE LAMELLAE

44
Q

are found in rapidly growing cells (germ cells, embryonic cells, tumor cells)

A

ANNULATE LAMELLAE

45
Q

function is not fully known

A

ANNULATE LAMELLAE

46
Q

rod-shaped organelles [0.2 µm (W) – 7 µm (L)] double layered sac

A

MITOCHONDRIA

47
Q

possess an outer smooth membrane and an inner membrane, which invaginates to form cristae

A

MITOCHONDRIA

48
Q

important in energy metabolism

A

MITOCHONDRIA

49
Q

as major source of adenosine triphosphate (ATP)

A

MITOCHONDRIA

50
Q

site of many metabolic reaction

A

MITOCHONDRIA

Histology (7 decks)

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