basics
Define the smallest unit of life.
cell
Which cell part controls what enters and leaves the cell?
cell membrane
What do many similar cells working together form?
tissue
Which system moves blood around the body?
circulatory
Found only in plant cells, this green organelle catches sunlight to make food. (photosynthesis)
chloroplast
Explain the main difference between unicellular and multicellular organisms.
unicellular- one cell does all life functions
multicellular- multiple cells work together to perform life functions
Which cell part holds the genetic material and controls cell activities?
nucleus
What do different tissues working together form?
organs
Which system is responsible for gas exchange? (O2 & CO2)
respiratory
This is a stiff, outer layer that provides support and protection for plant cells.
cell wall
Describe an advantage that multicellular organisms have that unicellular organisms do not have.
answers vary
Which organelle makes ATP?
mitochondria
Put these in order from smallest to largest: cell, organ system, tissue, organs
cell, tissue, organ, organ system
Which system sends signals to control the body and respond to the environment?
nervous system
These tiny, dot-like organelles are responsible for making proteins for the cell.
Ribosomes
Predict what would happen to a multicellular organism if all of its cells were identical and could not specialize.
answers vary
Which organelle uses sunlight to make food in plant cells?
chloroplast
Explain a benefit of having cells that specialize in multicellular organisms.
different structures with different functions
i.e muscle to help with movement but skeleton to provide support and protection
Explain how the circulatory system and respiratory system work together.
respiratory system brings in Oxygen and exhales co2, circulatory system transports oxygen to body cells and also transports co2 from cells back into the lungs to be exhaled as waste
This is the clear, jelly-like fluid that fills the cell and holds all the organelles in place.
Cytoplasm
Give one example of a unicellular organism.
bacteria, ameoba, yeast, euglena, paramecium
Name two cell parts that plant cells have but animal cells do not have.
cell wall, chloroplast
What type of cells send signals from the brain to the rest of the body?
nerve
Explain how the digestive system and circulatory system work together.
digestive system breaks down food into nutrients, the circulatory system delivers these nutrients to body cells for life functions
what is the process of cell replication called?
mitosis