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- 1. Multiple Choice
The diagram shows a summary of photosynthesis. What substances do each of the letters represent? (SB1e)
W is O 2 ; X is H 2 O; Y is CO 2 ; and Z is glucose.
W is H 2 O; X is O 2 ; Y is CO 2 ; and Z is glucose.
W is H 2 O; X is O 2 ; Y is glucose; and Z is CO 2 .
W is CO 2 ; X is O 2 ; Y is H 2 O; and Z is glucose.
- 2. Multiple Choice
Which of the following examples illustrates osmosis? (SB1d)
Water leaves the tubules of the kidney in response to the hypertonic fluid surrounding the tubules.
Digestive enzymes are excreted into the small intestine.
White blood cells consume pathogens and cell debris at the site of an infection.
Calcium is pumped inside a muscle cell after the muscle completes its contraction.
- 3. Multiple Choice
Felicia observed that the lettuce plants in her garden wilted after several days of drought. The next day there was a downpour of rain, and the leaves began to swell. What cellular process caused this effect in the lettuce plants? (SB1d)
osmosis
photosynthesis
active transport
cellular respiration
- 4. Multiple Choice
Active transport occurs in cells, for example, when the Na-K pump is at work. Any process that involves active transport most often involves the (SB1d)
movement of molecules without any predictable pattern.
movement of molecules from a lower concentration to a higher concentration.
movement of molecules from a higher concentration to a lower concentration.
movement of molecules from a lower to higher concentration and then back to the point of origin.
- 5. Multiple Choice
Devin got his wisdom teeth removed and his mouth is swollen. His doctor tells him to rinse his mouth with a warm saltwater solution every few hours. How does the saltwater solution help heal Devin's mouth? (SB1d)
The salt water is a hypertonic solution, and the swollen cells in Devin's mouth will release water through osmosis.
The salt water is a hypotonic solution, and the swollen cells in Devin's mouth will take in water through osmosis.
The salt water is a hypotonic solution, and the swollen cells in Devin's mouth will release water through diffusion
The salt water is a hypertonic solution, and the swollen cells in Devin's mouth will take in water through diffusion.
- 6. Multiple Choice
How can photosynthesis be related to cellular respiration? (SB1e)
the reactants for one are the products for the other
they have the same reactants
they have the same products
they have nothing in common
- 7. Multiple Choice
The diagram shows a typical plant cell. When a plant cell receives too much water, it may swell and burst.
Which three organelles work together to maintain homeostasis and prevent this from occurring? (SB1a)
P because the vacuole stores water for later use; Q because the cell membrane allows materials in and out; R because the cell wall maintains a rigid support structure to prevent
bursting.
N because the chloroplast creates energy for later use; O because the nucleus uses that energy to inform the plant not to take in any more water; Q because the cytoplasm prevents any water from entering the cell.
U because the Golgi apparatus packages the water; P because the ribosome ships the water to the outer cell;
R because the cell membrane releases the water through active transport.
M because the mitochondrion provides energy to create water channels;T because the endoplasmic reticulum burrows to create these water channels; Q because the cell membrane releases this water out of the channels.
- 8. Multiple Choice
Glycolysis occurs in which part of the cell? (SB1e)
the thylakoid
the cytoplasm
the mitochondria
the cell membrane
- 9. Multiple Choice
What is the function of the nucleus? (SB1a)
absorbing sunlight
releasing energy
storing genetic material
producing food molecules
- 10. Multiple Choice
We would expect cells found in the digestive glands of animals to contain relatively large amounts of which cellular organelle? (SB1a)
centrioles
lysosome
mitochondria
nuclei
- 11. Multiple Choice
A diagram of a cell is shown. Use the image to answer any questions that follow. As a ribosome moves along the messenger RNA molecule (SB2a)
amino acids are linked to create a polypeptide.
lipids are created by the synthesis of glycerol.
complex carbohydrates are converted in monomers.
nucleotides are formed by translation.
- 12. Multiple Choice
In the diagram, the process occurring in the nucleus of the cell is
translation, the production of proteins from messenger RNA.
elongation, the binding of amino acids with a peptide bond.
transcription, the decoding of DNA into a messenger RNA molecule.
replication, the semiconservative production of DNA.
- 13. Multiple Choice
The diagram shows a process that is occurring in the nucleus of a cell. What would most likely happen if the process in the nucleus is interrupted? (SB2a)
DNA would not be decoded into an RNA molecule.
DNA would not be able to be produced.
Protein synthesis would be increased.
Amino acids would bind together.
- 14. Multiple Choice
DNA carries information to specify the traits of an organism in the form of (SB2a)
reorienting randomly generated strands containing phosphorous bases.
alternating complementary strands containing nitrogenous bases.
fragmenting opposite strands containing phosphorous bases.
combining identical strands containing nitrogenous bases.
- 15. Multiple Choice
A DNA molecule is arranged similarly like a ladder. Each rung (steps) of the ladder is formed by (SB2a)
a random organization of proteins and lipids.
a pair of nitrogenous bases.
alternating phosphate and glucose molecules.
a pair of ribose molecules.
- 16. Multiple Choice
Directions: A diagram of a cell is shown. Use the image to answer any questions that follow. What is structure S in this diagram? (SB2a)
a stop codon used to stop transcription of RNA from DNA
an amino-acid receptor used to link amino acids together
a nucleotide sequence specifically for the elongation of DNA
an anticodon that is complementary for the codon on messenger RNA
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