Enzymes
What type of macromolecule are enzymes?
Proteins
How many protons does carbon have?
6
Describe the atoms of the water molecule.
2 Hydrogen atoms and 1 Oxygen
What is ecology?
Study of environments and all the relationships, both biotic and abiotic, in them.
Why do scientists use the sc. method?
To answer questions about the natural world.
What does a catlayst do?
Speeds something up
What is carbon's atomic number?
6
Describe the bonds formed by H and O
the atoms form covalent bonds with each other
What is an autotroph?
Any organism that makes it's own food by photosynthesis.
Why it's important for scientists to be able to reproduce each others studies.
Because if others can't reproduce the study, it's not science.
Why are enzymes catalysts?
They speed up reactions.
How many valence electrons does carbon have?
4
Why does water's oxygen have a slightly - charge?
because it keeps the "shared" electrons around it more...like they are groupies!
What is a heterotroph?
Any organism that eats other things to survive.
A student wants to research if a plant will grow more leaves if fertilized, so she conducts an experiment.
What is the dependent variable of this experiment?
what is plant leaves
How do enzymes catalyze reactions?
By reducing the activation energy required for the reaction to occur.
What about carbons valence electrons lead it to bond to so many other atoms...including other carbons.
The each of the 4 valence electrons would be happier if they found a partner electron, so they are always looking for an available electron:)
How does polarity lead to cohesion?
Because H's are slightly + and O is slightly -, opposites attract and they form hydrogen bonds with other water molecules.
When you look at any ecosystem, what do you see more of, autotrophs or heterotrophs? Why?
autotrophs, because they are the base of every food chain or web.
A student wants to research if a plant will grow more leaves if fertilized, so she conducts an experiment.
What is the independent variable of this experiment?
What is fertilizer?
The hottest thermophile exists at temps around 170 degrees F. At what temp would you expect its enzymes to function most efficiently?
170 degrees F.
Name they kind of structures carbon can form, due to its unique shape.
rings and strings
Water has adhesive properties bc of it's polarity, as a result it can defy gravity. Give 1 example of this happening.
Water up a root system in any plant or tree.
Anytime water moves up a napkin/paper towel:)
How does a food chain differ from a food web?
A food web is all of the food chains in an ecosystem.
Why do scientists believe they may have detected signs of life on Venus?
What is because they found phosphine gas in Venus' atmosphere.