Module 7 Lesson 1

Question 1

Prokaryotic Cells

Answer 1

microscopic, unicellular organism without a nucleus or other membrane-bound organelles.

Question 2

Eukaryotic Cells

Answer 2

unicellular organism with membrane-bound nucleus and organelles; GENERALLY LARGER AND MORE COMPLEX THEN A PROKARYOTIC CELL

Question 3

Cell Theory

Answer 3

states that (1) organisms are made of one or more cells; (2) cells are the basic unit of life; and (3) all cells come only from other cells.

Question 4

Plasma Membrane

Answer 4

flexible boundary that helps control what enters and leaves the cell.

Question 5

Organelle

Answer 5

specialized internal cell structure that carries out specific cell functions such as protein synthesis and energy transformation.

Question 6

Cell

Answer 6

basic unit of structure and organization of all living organisms.

Question 7

Nucleus

Answer 7

the membrane-enclosed organelle within a cell that contains the chromosomes

Question 8

Head

Answer 8

Carries Optical parts in the upper part of microscope

also referred to as body

Question 9

Base

Answer 9

Microscopes support, carries illuminators

Question 10

Arms

Answer 10

Connects the base to the head and the eyepiece tube to the base of the microscope. It gives support to the head of the microscope and it is also used when carrying the microscope

Question 11

Eyepiece

Answer 11

part used to look through the microscope. Its found at the top of the microscope

also referred to as ocular

Question 12

Eyepiece Tube

Answer 12

eyepiece holder. It carries the eyepiece just above the objective lens

Question 13

Objective Lenses

Answer 13

major lenses used for specimen visualization. each lens increases in size and magnification

Question 14

Nose Piece

Answer 14

Holds the objective lenses, is movable to look at different specimens on different magnifications

Question 15

Adjustment knobs

Answer 15

knobs that are used to focus the microscope. There are two types of adjustment knobs i.e fine adjustment knobs and coarse adjustment knobs.

Question 16

Stage

Answer 16

section in which the specimen is placed for viewing. They have stage clips that hold the specimen slides in place

Question 17

Aperture

Answer 17

hole on the microscope stage, through which the transmitted light from the source reaches the stage

Question 18

Microscopic Illuminator

Answer 18

the microscopes light source, located at the base. It is used instead of a mirror

Question 19

Condenser

Answer 19

lenses that are used to collect and focus light from the illuminator into the specimen. They are found under the stage next to the diaphragm of the microscope.

Question 20

Diaphragm

Answer 20

found under the stage of the microscope and its primary role is to control the amount of light that reaches the specimen.

also known as iris

Question 21

Condenser Focus Knob

Answer 21

knob that moves the condenser up or down thus controlling the focus of light on the specimen.