final Flashcards
What is the independent variable in an experiment?
The independent variable in an experiment is the variable that you control to study what it does
What is the dependent variable in an experiment?
The dependent variable is the variable that changes in response to the independent variable
Which axis does the independent variable go on a graph?
x-axis
calculate population density:
Formula for growth rate of a population (r) is (b = birth rate, i = immigration rate, d = death rate, e = emigration rate):
r = (b+i) - (d+e)
Characteristics of Life
Response to stimuli, regulation, cells, reproduction, cells, adaptation, energy processing
What is a system?
A group of organisms that work together to do a certain task
Calorimetry Lab: When we burnt the Cheese Puff in this lab, what were we trying to find out?
We were trying to find how many calories were in the cheese puffs, because for every degree the water above it was heated, that was one calorie
Where is chemical energy stored in a compound?
In bonds that connect atoms and molecules to other atoms and molecules
What is carrying capacity and how is it shown on a graph?
Carrying capacity is a species average population size in a particular habitat and it is shown on a graph with a horizontal line
What is the difference between a positive and a negative feedback loop?
A negative feedback loop reduces the effect of change and helps maintain balance. A positive feedback loop increases the effect of the change and produces instability
What does it mean to be polar?
Having an uneven distribution of electron density
What is ATP?
The energy source for storage at the cellular level
Does ATP or ADP have more energy?
ATP has more energy than ADP
What are the roles of the pancreas and the chemicals glucagon and insulin in glucose homeostasis?
To balance each other to stabilize glucose
What makes carbon such a great atom for building macromolecules like proteins, lipids, nucleic acids, and carbohydrates?
It can bond in many different ways with many different elements
