NEW
Font size
WorksheetsBiochemistry and Cell Final Review
Total questions: 15
Worksheet time: 15mins
Papain, an enzyme in papaya, breaks down polymers composed of amino acids. Which of the following substances does papain break down?
Carbohydrates
Lipids
Nucleic acids
Proteins
How do enzymes speed up chemical reactions?
By reducing activation energy
By increasing activation energy
By reducing energy produced by the reaction
By increasing energy produced by the reaction
What is the maximum number of single covalent bonds that can form between a single carbon atom and 1 or more oxygen atoms?
1
2
3
4
In a glycerol molecule, there is a hydroxyl group (OH) bound to each of the 3 carbon atoms. The bond between the oxygen atom of a hydroxyl group and a carbon atom in glycerol is best classified as what type of bond?
Covalent
Hydrogen
Ionic
Metallic
As part of an experiment, a student adds 10 mL of 5% hydrochloric acid solution to 100 mL of a non-buffered, colorless solution of sugar. What is the most likely result?
The concentration of hydroxide ions (OH-) will increase
The concentration of hydrogen ions (H+) will increase
The pH will not change
The pH will increase
Honey is composed mostly of glucose and fructose. What property of water explains why honey dissolves easily in water?
Water exhibits strong cohesion
Water has a high specific heat
Water is a polar molecule
Water is easily ionized
What trait of an ATP molecule enables it to store energy for use by cells?
Its small size
Its solubility in water
Its ability to form hydrogen bonds
Its phosphate-phosphate bond
The diagram shows a cell membrane composed of a phospholipid bilayer with channel proteins. Each green molecule represents the same type of molecule inside or outside the cell. Facilitated diffusion moves these molecules across the cell membrane. In what direction do these molecules (x) move and through with structure?
Into the cell through the channel protein
Into the cell through the phospholipid bilayer
Out of the cell through the channel protein
Out of the cell through the phospholipid bilayer
From start to finish, what is the correct order of the stages of mitosis (Hint: know the pictures for the test)
Telophase, Anaphase, Prophase, Metaphase
Prophase, Metaphase, Anaphase, Telophase
Metaphase, Anaphase, Telophase, Prophase
Anaphase, Prophase, Telophase, Metaphase
The aerobic and anaerobic pathways of cellular respiration require which products of glycolysis?
NADH and ATP
Pyruvate and ATP
Pyruvate and NADH
Pyruvate
A paramecium lives in a relatively hypotonic environment. Which of these structures does the paramecium use to maintain homeostasis under these conditions, and how does it do so?
Contractile vacuole; by expelling water from the intracellular space into the extracellular space.
Contractile vacuole; by absorbing water from the extracellular space into the intracellular space.
Lysosome; by expelling water from the intracellular space into the extracellular space.
Lysosome; by absorbing water from the extracellular space into the intracellular space.
The presence of which of the following structures in a cell would indicate that the cell is a photosynthetic bacterium?
Cell wall
Chloroplast
DNA
Ribosome
An organelle found in a liver cell would best be identified as a lysosome if its primary function was which of the following?
Processing and packaging of cellular materials prior to export
Harvesting of light energy to produce carbohydrates
Detoxification of poisonous molecules within the cell
Digestion of macromolecules and old organelles
The building blocks of nucleic acids are called ...
amino acids
carbohydrates
nucleotides
proteins
Hydrophilic technically means...
water fearing
water loving
