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Scientific method and biochemistry questions 2015
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25 cards
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Questions
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1
What is the correct order of the steps in the scientific method.
experiment, research, hypothesis, analysis
Purp, research, hypothesis, experiment, analy, conclusion
Hypothesis, research purpose, experiment, conclusion,
Purpose, hypothesis, experiment, conclusion
2
What are the components of DNA?
Deoxyribose, P group, nitrogen base
Ribose, 3 P groups, nitrogen base
deoxyribose, and a nitrogen base
Ribose, P group and 4 bases
3
In an experiment, the factor that we measure is called the _____?
dependent variable
experimental group
Independent variable
Controlled variable
4
Enzymes are ...
carbohydrates
stable at high temperatures
biological catalyists
not reuseabe
5
Which of the following is important when creating a graph in science.
Neatness
Labels
Titles
All of these
6
Which type of macromolecule is this?
Lipid
Nucleic acid
Protein
carbohydrate
7
What type of macromolecule is this?
lipid
nucleic acid
carbohydrate
protein
8
Which of the following is most acidic?
blood
Coffee
water
bleach
9
When you decide whether or not the data supports the original hypothesis, you are
drawing conclusions
asking questions
making observations
forming a hypothesis
10
What type of macromolecule is this?
nucleic acid
Protein
Lipid
carbohydrate
11
Which of the following is classified as an inorganic compound?
glucose
protein
water
triglyceride
12
What are the monomers of a carbohydrate?
proteins
fatty acids
glucose molecules
nitrogenous bases
13
An acid is a molecule that releases ____ in a solution
Hydroxyl ions
electrons
neutrons
hydrogen ions
14
Identify the nucleic acid.
DNA
cholesterol
oxidase
glucose
15
What type of macromolecule is an enzyme?
Protein
nucleic acid
carbohydrate
lipid
16
Which type of lipid is used to make steroids in our body?
phospholipids
Cholesterol
saturated fats
testosterone
17
Which answer is true of organic compounds?
contain carbon
include lipids, proteins, & carbohydrates
All are true of organic compounds
are large covalently bonded molecules
18
What process is used to break down a protein molecule?
decomposition reaction
carbon fixing
hydrolysis
dehydration systhesis
19
Two or more polypeptide chains together create
Quaternary structure
tertiary structure
secondary structure
Primary structure
20
What are the monomers of protein?
glucose
amino acids
fatty acids
nitrogenous bases
21
What property allows water to absorbs large amounts of energy before changing temperature?
high heat capacity
chemical reactivity
polarity
buffering
22
This molecule communicates genetic information
lipid
carbohydrate
nucleic acid
protein
23
Polymers are broken down into monomers by
covalent bonding
combustion
hydrolysis
dehydration systhesis
24
Which structural level describes this protein?
tertiary
quarternary
primary
secondary
25
What is the correct pair matching in DNA?
adenine-guanine
uracil-cytosine
thymine-cytocine
cytosine-guanine
