Cells 1
What is the smallest cell of all?
Bacteria
What do all living things have?
What do we need in order to see cells?
A microscope
What do scientists study in order to classify organisms into different groups?
Traits
What are the smallest microorganisms?
Bacteria and archaea
What are 2 things that plant cells have, but animal cells don't?
Chloroplast/chlorophyll
Cell wall
What is a group of similar cells that work together to perform a job?
Tissue
What part of the cell controls all cell activities?
Nucleus
What kind of naming system do scientists use to classify living things?
First part: genus
Second part: species
The smaller the group, the more ________ the organisms in it are to each other
similar
What are 3 things that all living things need?
What is 1 thing that most living things need?
water, food, and shelter
oxygen
Which 2 cells are at work when you want to move a body part?
Nerve cells and muscle cells
What is a group of tissues that work together to perform a job?
Give an example.
Organ
Heart
How can bacteria be helpful?
Bacteria in your digestive system help break down your food
What is a phylum?
Group of organisms that have at least one major trait in common
What is the job of a root cell?
To take in water and nutrients
What is the job of a red blood cell?
Carrying oxygen and other matter through the body
How can viruses multiply when they can't reproduce?
The force living cells to make new copies of the virus
How are fungi cells similar to plant and animal cells?
Like plants, they have a cell wall
Like animals, they do not have a chloroplast
What are the 4 main traits that scientist look at?
1. # of cells
2. nucleus (y/n)
3. food (make/get)
4. move (y/n)
What are the 5 basic life functions?
1. reproduce
2. grow
3. use food for energy
4. get rid of wastes
5. react to changes
What is a group of organs that work together to perform a job?
What is the heart part of?
Organ system
Circulatory system
How are protists helpful and harmful?
Harmful: can cause seirous diseases, such as malaria
Helpful: they are a food source for other organisms
What is the largest group of living things?
List all the groups.
Kingdom
1. archaea
2. bacteria
3. protists
4. fungi
5. plants
6. animals
From largest to smallest, what are the different groups of organisms?
Kingdom, phylum, class, order, family, genus, species