Science Test Flashcards
Cell Theory.
All Living things have cells
Cells are the smallest unit of life
All cells come from pre-existing cells
Function of cell wall
Provides cell with structural support
Vacuole Function
To store water and dissolve substances
Cell Membrane Function
Controls what comes in and out of the cell
Mitochondria
Generates most of the chemical energy to power the cell
Nucleus
Control Centre of the cell
What is the function of a red blood cell?
To carry oxygen around the body from the lungs
define cellular respiration
Respiration is a process where food is broken down to release energy
What is the word count for photosynthesis?
Carbon dioxide +Water + Light=Glucose+oxygen
What is the word equation for cellular respiration?
Glucose Oxygen=Carbon dioxide+ Water +ATP
Function of Chloroplast
Chloroplasts use energy from the sun to make food
What do Chloroplasts contain
A green substance called Chlorophyll
What is the cytosol
The jelly like substance inside cells
Can cells reproduce Themselves using binary fission
Yes
What s the source of Magnification for the light microscope?
The source is light which is used to view to object
What is the source of magnification for the electron microscope?
The electron microscope beams tiny particles called electrons to view the object.
What are the factors of living things?
MRS GREN(Movement, Respiration, Sensitivity, growth, reproduction, excretion and nutrition.
Define an organelle
A structure in the cell that has a special role to play.
Who made The Compound microscope?
The compound microscope was built first by Zach Jansen.
Who discovered the word cell?
Robert Hooke
Who discovered cell theory
Theodor Schwan
Who discovered cell nucleus?
Robert Brown
Who discovered the Scanning Microscope?
Ernst Ruska
How does a light microscope work?
A light microscope works by beaming light through a specimen
Define a cell
Smallest unit of life that is responsibly for all life’s processes
Define a tissue
A group of cells that have the same role or function
Define and organ
A group of different tissues working together for a specific function
