Biology quiz Flashcards
What did Antonie van Leeuwenhoek do for science?
He started the studies of cells with hooke, also known as Cytology
What did Robert Hooke do for science?
Discovered Cellulae
What did Robert Brown do?
What did Theodor Schwann and Matthias Schleiden do?
What did Rudolf Virchow and Robert Remak do?
Discovered the nucleus
Proposed that each cell develops as an independent unit
Discovered that every cell originates from the dividing of another cell
What is cell theory?
All life is made of cells
Cells are the organizational unit for life
All cells come from pre-existing cells
What are cells measured by?
Micrometers
In a cell, As size _____ volume ________ much more _______
As size increases, the volume increased much mor rapidly
What are the types of microscopes and what do they do?
Light microscopes - magnifies with different sized lenses
Transmission electron microscope - electrons are transmitted through the specimen
Scanning electron microscope - Electrons beamed onto surface of specimen
What does the nucleus do in a cell?
Holds the DNA/recipe to life
What are chromosomes?
The DNA forms into a ladder like structure
What is the Endoplasmic Reticulum?
Transports molecules through the cell using passageways
What does the Golgi body do?
Packages protein and other molecules to be sent out of the cell.
What is a
Vesicles -
Lysosomes -
Vacuoles -
Vesicles - Transport materials out or stroes in the cell
Lysosomes - Containes digestive enzymes
Vacuoles - Containes water and other materials/for storage
What do Ribosomes do?
Create protein
What does the Mitochondria do?
Creates energy - the powerhouse of the cell
What is cellular respiration?
glucose + oxygen —–🡪 carbon dioxide + water + energy
