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Worksheets1110 Unit 1 Exam review
Total questions: 16
Worksheet time: 8mins
All living things must be made of one or more cells. What feature makes a cell a cell?
Cell membrane
Cell wall
Protein coat
DNA containing nucleus
You find a single celled organism with DNA held in the cytoplasm and no membrane bound organelles. What type of organism is this?
Prokaryote
Eukaryote
Dikaryote
Which subatomic particle has a negative charge?
In a neutral atom, the number of protons equals...
The number of neutrons
The number of electrons
The valence
The mass
Why does ice float?
What action will change every level of structure in a protein?
Breaking H bonds between N and C groups
Adding an extra glycine amino acid
Forming new disulfide bonds
removing all polypeptide subunits
If you see an O in a side chain/ R group...
It is basic
It is nonpolar
It is acidic
It is polar
Which is the structural carbohydrate used in both fungi and animals?
Which are examples of secondary structures?
a-knots
B- Pleated sheets
Hairpin loops
Disulfide bonds
B-helix
Lipids are the best macromolecule for energy storage because...
It has many strong bonds
It has many H-C bonds
It has a bent structure
Carbs are better
What is the energy storage molecule in plants?
Chitin
Cellulose
Starch
Glycogen
This molecule is a triglyceride (named for its 3 tails). The majority of its tails are_____ fats.
Unsaturated
Saturated
Hydrogenated
The ability to produce viable offspring is an organism's...
Speciation
Adaptation
Fitness
Mutation
What macromolecule is this?
Amino acid
Nucleotide
Carbohydrate
Lipid
What is the correct pairing of nucleotides in DNA?
A-T
C-G
U-A
G-C
T-T
C-C
G-G
A-A
A-G
C-T
You place cells in a mystery aqueous solution. After a few minutes, you see that all cells have exploded (lysed). What is the tonicity?
HYPOtonic
HYPERtonic
Isotonic
Osmosis
