bio Unit Test 1 Flashcards
- Cell theory
..Cell theory is the scientific theory that all living things are made of cells, and that cells come from other cells.
Definition of matter and DNA
MATTER: is anything that has a mass and occupied space it’s made out of atoms and molecules
DNA molecules that carry the genetic instructions for the growth and development and organisms and viruses
What causes kidney failure?
Diabetes, high blood sugar, chronic kidney disease, kidney stones, tumors, blocking urine flow
What are the stages of mitosis?
prophase metaphase annaphase telaphase
Definitions of each mitosis
Prophase-the membrane begins to break down
Metaphase-chromosomes align by cell equator
annaphase-chromosomes separating pulling apart
telaphase-nucleus membrane forms around each chromosome cells a separate
What are cancer causes how to prevent it and treatments for cancer?
Cause -genetic lifestyle, smoking alcohol, harmful chemicals, radiation sun, poor diet
Prevent-healthy choices, limited smoking want to drinking eat, balanced food use sunscreen limited exposure to harmful chemicals regular check ups
Treatment-surgery, chemotherapy, radiation, stem cell transplant
Function of red and whitecblood cells
Red- transport, oxygen and carbon dioxide helps maintain pH balance
White -to defend body against infections and foreign invaders
Carbon cycle in order
carbon dioxide in the atmosphere is absorbed by plants through photosynthesis, then passed along the food chain to animals through consumption, upon death of organisms carbon is released back into the atmosphere through decomposition, and can also be stored in the ocean or sedimentary rocks over long periods, with additional carbon entering the atmosphere through activities like burning fossil fuels.
Definition of chromosomes
structures that carry genetic information from cell to cell
What are cells?
Structure and function living organisms essential life, processes, such as growth, reproduction and energy production
What is insulin
a hormone that lowers the level of glucose (a type of sugar) in the blood
Difference between type one IV and type two
Type 1-autoimmune condition where the immune system attacks and destroys insulin, typically found in young children or young adults, little to non-insulin is produced
Type two -body cells do not respond effectively to insulin, typically seeing an adult, but increasing in children, produces insulin, but cells resist its effect
Definition of compound
a substance made up of two or more elements that are chemically bonded together
What does do nucleus do
The nucleus of a cell acts as the control center, storing the cell’s genetic material (DNA) and regulating its activities like growth, metabolism, and reproduction by controlling gene
Definition of calories
Measurement used to modify the amount of energy food provides for the body (just energy)
Function of cell membrane
regulates the transport of materials entering and exiting the cell.
First person to microorganisms
Robert Hooke antoni vanleeuwehock
The most killing cancer
Long breast, COLORETAL and stomach
Definition diffusion and osmosis
Diffusion is the movement of molecules from a high concentration area to a low concentration area. Osmosis is a type of diffusion that occurs when water molecules move across a semipermeable membrane
