Understanding
Cells
How Cells Work
How Cells Reproduce
Vocabulary
Body Systems
100
This is what we call the "basic units of life."
What is the cell?
100
This is the powerhouse for the cell.
What is the mitrochondria?
100
When the nucleus reproduces the process is called . . .
What is mitosis?
100
Creatures with more than one cell.
What is multicellular?
100
The organ system for breathing.
What is the respiratory system?
200
Single cell organisms are called this.
What is unicellular?
200
These are called the protein factories" of the cell.
What are the ribosomes?
200
Reproductive cells have only _________ the number of chromosomes compared to other body cells.
What is one-half?
200
The organ system responsible for removing liquid waste from the body.
What is the excretory system?
200
The organ system that is the heart, arteries and veins.
What is circulatory system?
300
In multicellular organisms, cells become _____________ to perform certain tasks.
What is specilized?
300
This organelle is the brain of the cell.
What is the nucleus?
300
The chemical language of cells is called . . . (two words)
What is the genetic code
300
The brain in the main organ of this system.
What is the nervous system?
400
Cells join together to form layers called . . .
What are tissues?
400
Chromosomes contain a twisted chain of chemicals called . . .
What is deoxyribonucleic acid (DNA)?
400
This is the process that causes the nmber of chromosomes to be reduced by half.
What is meiosis?
400
The organelles in plants that use the energy of sunlight is called . . .
What are the chloroplasts?
400
This is the oragan system that contins the glands and hormones.
What is the endocrine system?
500
Tissues join together to from . . .
What is an organ?
500
The DNA contain these four proteins that can make ____ letter words.
What are A, C, G, and T that make 3 letter words?
500
These pull the chromosomes apart into two groups duinrg reproduction.
What are the spindle fibers?
500
During cell respiration, these two substances are formed.
What are carbon dioxide and water?
500
The mouth, small and large instestines are in this system.
What is the digestive system?
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