APBIO Lab Quiz: Organelles with a Light Microscope

microscope

mechanism used to view cells at a microscopic level.

diaphragm

adjusts the amount of light

scanning power

lowest setting, 4x

low power

medium setting, 10x

high power

highest setting, 40x

eye piece

where you look through. 10x magnification

coarse adjustment

moves microscope up and down on scanning/low power

fine adjustment

slightly adjusts level on high power

cell wall

outside of plant cell, provides structure.

vacuole

holds water and regulates waste

middle lamella

pectin rich layer which holds cells together; outermost part of cell wall

cell membrane

fluid membrane, within the cell wall. Regulates transport in and out of the cell.

chloroplast

green cell in plants which enables photosynthesis (elodea)

nucleus

contains the cell's genetic information and controls growth and metabolism. 2 layer membrane

nucleoles

within the nuclease, facilitates protein synthesis

anacharis

new term for the elodea plant. has two layers of cells. more chloroplast in top layer

anthocyanin

provides red pigment to trees and eggplant, stored in vacuoles

plasmodesmata

space between the cells. channel between the cell walls. moves water and nutrients and allows for communication.

amyloplast

holds starch in potato cells. also called leucoplasts

pulp cells

cells in the potato. polyhedral with 20 sides.

stone cell

dead cells which provide structure and physical defense. found in pear.

lignin

provides strength to cell wall.