Lab 2 Microscope and Cells

Question 1

Ocular lens

Answer 1

the ocular, or eyepiece lens that one looks into

Question 2

Objective lens

Answer 2

the objective lens, or the lens closest to the object

Question 3

Illumination dial

Answer 3

light intensity dial

Question 4

Stage

Answer 4

supports slide

Question 5

Condenser dial

Answer 5

moves the line on the dial to the middle

Question 6

Stage adjustment knob

Answer 6

moves the microscope slide around on the stage

Question 7

Coarse focus knob

Answer 7

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

Question 8

Fine focus knob

Answer 8

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

Question 9

Erythrocyte

Answer 9

red blood cell

Question 10

Leukocyte

Answer 10

colorless or white blood cell

Question 11

Fibroblast

Answer 11

cell in connective tissue which produces collagen and other fibers

Question 12

Osteocyte

Answer 12

bone cell

Question 13

Keratinocyte

Answer 13

skin cell which produces keratin

Question 14

Epithelial cell

Answer 14

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

Question 15

Spermatozoon

Answer 15

male sex cell - sperm

Question 16

Oocyte

Answer 16

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

Question 17

Hepatocyte

Answer 17

Liver cell

Question 18

Myocyte

Answer 18

muscle cell

Question 19

Adipocyte

Answer 19

fat cell

Question 20

Melanocyte

Answer 20

mature melanin-forming cell, especially in the skin.

Question 21

Neuron

Answer 21

specialized cell transmitting nerve impulses

Question 22

Adult Stem Cell

Answer 22

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

Question 23

Embryonic stem cell

Answer 23

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

Question 24

Cell membrane

Answer 24

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

Question 25

Cytoplasm

Answer 25

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

Question 26

Mitochondria

Answer 26

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.

Question 27

Nucleus (with/DNA)

Answer 27

houses the genetic material of the cell

Question 28

Ribosomes

Answer 28

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

Question 29

Endoplasmic Reticulum

Answer 29

unctions as a manufacturing and packaging system

Question 30

Rough ER

Answer 30

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

Question 31

Smooth ER

Answer 31

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

Question 32

Golgi apparatus

Answer 32

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

Question 33

Lysosomes

Answer 33

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

Question 34

Peroxisomes

Answer 34

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.

Question 35

Vesicles

Answer 35

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

Question 36

Cytoskeleton

Answer 36

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.

Question 37

Cilia

Answer 37

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.

Question 38

Microvilli

Answer 38

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.

Question 39

eosin

Answer 39

red fluorescent dye

Question 40

Saline

Answer 40

solution of salt in water

Question 41

Hematoxylin

Answer 41

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

Question 42

Methylene blue

Answer 42

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