WorksheetsUnit 1: Biochemistry
Total questions: 33
Worksheet time: 18mins
Branch of science is concerned with the chemical processes that occur in living things
Stable internal conditions of a living thing
Chemical bonds result from the sharing of electrons in the outer atomic orbital
Weight of a substance for a specific volume or the number of organisms in an area?
Occurs when molecules have an uneven distribution of charges
The measure of the heat energy required to increase the temperature of a unit quantity of a substance by a certain temperature interval
The scale that measures acidity or alkalinity (basicity) of a solution scaling from 1 to 14, with the neutral midpoint being 7
A polymer with a high molecular mass. Within organisms there are four main groups: carbohydrates, lipids, proteins, and nucleic acids
macromolecule
proton
catalyst
Speeds up a chemical reaction
nucleic acid
Reaction that absorbs energy (heat)
R that releases energy (heat)
Substance that reduces the hydrogen ion concentration of a solution; it has a pH greater than 7
Relatively weak bond formed between hydrogen atom of one water molecule and oxygen atoms of another
Important because of its ability to dissolve many substances and because many biochemical reactions need it
Energy needed to get a reaction started?
Process in which the effects of a small disturbance on a system include an increase in the magnitude of the stimulus
Positive Feedback Loop
Negative Feedback Loop
Neutral Feedback Loop
The answer to a question
claim
evidence
reasoning
The data (qualitative and quantitative) that supports the answer
claim
evidence
reasoning
The scientific explanation that justifies how the evidence supports the claim
claim
evidence
reasoning
A feedback in which the system responds in an opposite direction to the stimulus
negative feedback
positive feedback
neutral feedback
Which of the following variable is being measured and referred to as the the "responding" variable?
controlled variable
What variable is purposefully changed and referred to as the "manipulated variable"?
controlled variable
What variable is purposefully kept the same and referred to as the "constants"?
controlled variable
The dependent variable in this experiment is
Name a controlled variable (constant) for this experiment.
the type of solution in each container
The amount of solution used in each container
the length of the gummy bear after it was submerged
What is the independent variable of this experiment based on this graph?
the color of the gummy bear
the different types of solutions used to submerge the gummy bears.
the length of the gummy bears after they were submerged in different liquids
