Chp 7 The Cell Flashcards
Diaphragm
Adjust amount of light reaching the slide
Nose pieces
Rotate to move desire lens in place
Protoplasm
All living part of cell
Cytoplasm
Living material in a cell outside of nucleus
Site of metabolism
Store water, lipids and amino acid
Vacuole
Contains cell sap
Solution of salt, sugar and pigments
Provide structural support and is used for storage, waste disposal, protection and growth
Cell ultrastructure
Detail of a structure as seen using on electron microscope
Cell membrane
Made up of phospholipids and protein
Separates cell organelle and cytoplasm from outside
Semi permeable
Give support to cell
Recognise molecules that touch them
Retain cell contents
Semi permeable
Allow free passage of some molecules and prevent passage of others
Nucleus
Contain the cell’s genetic information
Controls activities of cell
Made up of double membrane with numerous nuclear pores
Nuclear pore
Allow mRNA to pass in and out of nucleus
Nucleoulus
Contains RNA, DNA
Makes ribosomal RNA. Passes through pores and makes ribosome in cytoplasm
Eukaryotes
Organisms whose cell contain a nucleus and other cell organelles, which are enclosed by membranes
Prokaryotes
single-cell organism whose cell lacks a nucleus and other membrane-bound organelles
Chromatin
Contains DNA that is arranged into chromosomes which stores our genes
Mitochondria
Supply energy to the cell-site of respiration
Power house of the cell
Cristae - inner foldings of the inner membrane
More you have more active the cell
