Macromolecules
What does CHNOPS stand for?
Carbon
Hydrogen
Nitrogen
Oxygen
Phosphorous
Sulfur
What does the nucleus contain?
DNA
What is the main purpose of the digestive system?
Nutrient absorption
How much energy goes up each trophic level?
10%
Give me one piece of evidence for evolution.
Homologous structures
Analogous structures
bones in general
fossils
DNA
What are the building blocks of proteins?
Amino Acids
What three things does a plant cell have that an animal cell does not?
Central Vacuole
Chloroplast
Cell wall
Sweating, goosebumps, heart beating faster, hormone levels changing, blood sugar
What is it called when an organism lives in or on another organism taking from it and harming it?
Parasitism
What is the definition of species?
Organisms that can reproduce and have fertile offspring.
What is the main function of carbohydrates?
Short term energy
What is two differences between prokaryotes and eukaryotes?
Presence of a nucleus
Size
means of reproduction
Which cells are in charge of feeling and sending signals to the brain?
Give an example of a human impact on the environment and how it is detrimental.
Fossil Fuel extraction
carbon emissions
animal agriculture
plastics
water pollution
What is the difference between mitosis and meiosis?
Mitosis creates two identical daughter cells
Meiosis creates 4 genetically different daughter cells
What are the most prominent elements on earth and in life? (2)
Hydrogen and Carbon
What is it called when a substance moves from a level of high concentration to low concentration?
Diffusion
Where does gas exchange take place?
Between the alveoli and capillaries.
Name three places that carbon can be stored.
In the air as CO2
In living organisms
in the soil
in fossil fuels
Give me an excellent definition of natural selection.
Those best adapted to the environment that they are in will probably survive and have offspring, passing on their genetics that allowed them to survive.
What are two functions of proteins?
Transport
Hormone production
growth
repair
Write the chemical formula for photosynthesis.
6CO2 + 6H2O + sun ---> C6H12O6 + 6O2
Explain how oxygen is brought into the lungs.
The diaphragm contracts creating a vacuum that pulls oxygen into the lungs.
How is nitrogen found in the air and how does it get into the soil? Extra point if you can tell me the compound found in the soil.
N2, fixed by nitrogen fixing bacteria
turned into ammonia
How does evolution occur?
Mutations and environmental pressures