Cell Structures
This is the "brain" of a cell.
Nucleus
How do we know cell theory is true?
We have observed it through microscopes
What system is made up of the brain, spinal cord and nerves?
Nervous
Name two systems that help remove waste products from the body
Excretory, respiratory
The same type of cell working together is called a
tissue
What is the difference between a unicellular and multicellular organism?
Unicellular- one cell
multicellular- many cells
Is a nucleus outside of a cell considered a living thing?
No
Helps obtain oxygen and gets rid of carbon dioxide.
Respiratory
What two systems control body movement?
Skeletal and muscular
What cell structure is most important for removing waste from a cell?
cell membrane
What two structures are present in plant cells only?
Cell wall and chloroplast
What is the first main idea of cell theory?
All living things are made of cells?
This system removes waste from your body
Excretory
What systems works with all the other systems by sending signals and controlling everything?
Nervous system
This is where blood cells are created
bones
What is the powerhouse of the cell and why is it called that?
Mitochondria because it makes all the energy a cell needs
Where do new cells come from?
Other cells
The heart is a part of which system?
circulatory
How does the digestive system and work with the circulatory system to give your cells food
The digestive systems breaks the food down into small pieces and passed to the blood. The circulatory system then pumps the blood around to your cells and gives them food
What made up of two or more tissues that work together to do a specific job?
organs
What is the function of a vacuole?
Store food, water and waste products
What does it mean to say "cells are the basic unit of life"?
Nothing smaller/simpler than a cell is considered living
Name three functions of the skeletal system
structure, support, create blood cells, protect organs
How do the circulatory and respiratory systems work together to get oxygen to your cells?
The respiratory systems breathes the oxygen into the lungs, where the oxygen is passed to the blood. The circulatory system then pumps the blood around to your cells and gives them oxygen
What are the levels of organization in the human body?
cells, tissues, organs, and organ systems