Scientific Design
What is independent variable?
The variable that the scientist changes.
Define homeostasis.
The body's way of maintaining internal conditions.
What are the 4 types of tissues?
Muscular, connective, nervous, epithelial.
The powerhouse of the cell.
Mitochondria
Define cell membrane.
Protects the cell and controls what goes in and out. Phospholipid bilayer.
What is a dependent variable?
What is being tested and depends on the IV.
What is ATP?
The molecule in which chemical energy is stored and used for organisms to grow, reproduce, and perform cellular activities.
What is the function of nervous tissue and give an example.
Transmit signals and control body functions. Nerves, brain, spinal cord.
What is the function of the nucleus?
Controls of the cell and stores DNA.
What is the function of the Rough Endoplasmic Reticulum?
Folds, modifies, and tags proteins.
Why do scientists use microscopes?
To visual specimen on the microscopic level that they would otherwise be unable to.
Cells -> tissue -> organ -> organ system -> organism
What is the function of epithelial tissue and give an example.
Coats the outside of the body and internal organs and also provides protection. Skin.
What is the function of lysosomes?
Breaks down waste, recycles materials, apoptosis.
What is the function of the Smooth Endoplasmic Reticulum?
Production of lipids and detoxification.
What type of graph would I use if I were testing plant growth over time?
Line Graph.
Give 4 examples of how the body maintains homeostasis.
Water, pH, blood sugar, temperature etc.
Support, protection, and structure. Bones, blood, ligaments, cartilage, tendons etc.
What is the function of vesicles?
What is the function of vacuoles?
Storage of nutrients and water.
What time of graph would I use if I wanted to gather data about what fraction of the class likes certain sports?
Pie Chart.
Pick two organ systems and explain how they work together to help the body function.
Answers will vary.
What are the three types of muscle tissue?
Cardiac, skeletal, smooth.
What is the function of ribosomes?
Synthesizes proteins.
What is the cytosol AND what is its other name?
Extracellular fluid in the cell that helps transport materials and maintain cell shape. Cytoplasm.