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Mesa Community College BIO 160 > Lab 2 Microscope and Cells > Flashcards

Lab 2 Microscope and Cells Flashcards

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Biology 101 flashcards
1
Q

Ocular lens

A

the ocular, or eyepiece lens that one looks into

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2
Q

Objective lens

A

the objective lens, or the lens closest to the object

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3
Q

Illumination dial

A

light intensity dial

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4
Q

Stage

A

supports slide

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5
Q

Condenser dial

A

moves the line on the dial to the middle

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6
Q

Stage adjustment knob

A

moves the microscope slide around on the stage

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7
Q

Coarse focus knob

A

This is the rough focus knob on the microscope. This knob is used to move the objective lenses toward or away from the specimen

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8
Q

Fine focus knob

A

This knob is inside the coarse adjustment knob and is used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lense

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9
Q

Erythrocyte

A

red blood cell

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10
Q

Leukocyte

A

colorless or white blood cell

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11
Q

Fibroblast

A

cell in connective tissue which produces collagen and other fibers

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12
Q

Osteocyte

A

bone cell

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13
Q

Keratinocyte

A

skin cell which produces keratin

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14
Q

Epithelial cell

A

cell that line the surfaces of the body - absorption, secretion or to act as a barrier

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15
Q

Spermatozoon

A

male sex cell - sperm

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16
Q

Oocyte

A

Female sex cell in an ovary which may undergo meiotic division to form an egg

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17
Q

Hepatocyte

A

Liver cell

18
Q

Myocyte

A

muscle cell

19
Q

Adipocyte

A

fat cell

20
Q

Melanocyte

A

mature melanin-forming cell, especially in the skin.

21
Q

Neuron

A

specialized cell transmitting nerve impulses

22
Q

Adult Stem Cell

A

undifferentiated cells found throughout the body that divide to replenish dying cells and regenerate damaged tissues

23
Q

Embryonic stem cell

A

Stem cells derived from the undifferentiated inner mass cells of a human embryo

24
Q

Cell membrane

A

semi-permeable membrane that surrounds the cytoplasm of a cell. Outside of cell.

25
Q

Cytoplasm

A

material in the cell that provides structure. Gel in the cell.

26
Q

Mitochondria

A

powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. Self contained maze.

27
Q

Nucleus (with/DNA)

A

houses the genetic material of the cell

28
Q

Ribosomes

A

does RNA translation, building proteins from amino acids using messenger RNA as a template (little balls)

29
Q

Endoplasmic Reticulum

A

unctions as a manufacturing and packaging system

30
Q

Rough ER

A

organelle found in eukaryotic cells. Its main function is to produce proteins. Maze near the nucleus that has ribosomes on it.

31
Q

Smooth ER

A

organelle found in eukaryotic cells produces cellular products like hormones and lipids. Smooth maze around the nucleus.

32
Q

Golgi apparatus

A

responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations. Non-contained maze.

33
Q

Lysosomes

A

organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria. little balls.

34
Q

Peroxisomes

A

break down fatty acids to be used for forming membranes and as fuel for respiration; and transfer hydrogen from compounds to oxygen to create hydrogen peroxide and then convert hydrogen peroxide into water. little balls.

35
Q

Vesicles

A

small enclosed sacs that comprise them can transport and store substances within a cell from one cell to another. Little balls, golgi.

36
Q

Cytoskeleton

A

structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement. Sticks in the cell.

37
Q

Cilia

A

They work to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation. They also help propel sperm. Longer and further apart.

38
Q

Microvilli

A

microscopic cellular membrane protrusions that increase the surface area for diffusion and minimize any increase in volume, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion. Shorter and closer together.

39
Q

eosin

A

red fluorescent dye

40
Q

Saline

A

solution of salt in water

41
Q

Hematoxylin

A

olorless compound present in logwood, which is easily converted into blue, red, or purple dyes and is used as a biological stain.

42
Q

Methylene blue

A

dissolves in water to form a deep-blue solution: used chiefly as a dye,

Mesa Community College BIO 160 (4 decks)

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