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Which cells are most likely to react in the event that there is a reduction in the supply of oxygen to a person's foot? Select two options.
Red blood cells
Which organelle makes the proteins that are needed by the cell?
What role do nerve cells play in the human body?
They allow the body to react to stimuli.
Consider this animal cell.
Which organelles are labeled D, and what is one feature that distinguishes them from the other labeled organelles?
chloroplasts; the only organelles that produce sugars from sunlight
Which organelle breaks down sugar molecules that supply energy to the cell?
A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?
It contains cellulose.
The data in the table were recorded during an investigation in which a paramecium was placed in a hypertonic salt solution.
Which statement correctly describes the bars on a bar graph representing the data?
The bar for very low concentration is twice the height of the bar for medium concentration.
The endosymbiotic theory provides an explanation for the origin of chloroplasts. Which trait of chloroplasts supports this explanation?
Chloroplasts have their own DNA.
Which best defines homeostasis?
maintaining a stable internal environment
How is mitochondrial DNA (mtDNA) typing used in forensic science?
An unknown mtDNA sample is matched to a sample of mtDNA that was found at a crime scene.
Which best describes the cell theory?
As technological advancements are made, the cell theory may change.
Who first recognized the cell as the universal unit of life?
Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body's cells. Which organelle is most likely malfunctioning in the patient's cells?
How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?
with fewer contractions
The role of the cell membrane is most like the job of which person?
a police officer who allows select people to enter and leave a crime scene
Which is an example of how stem cells are currently being used?
for curing heart disease by regenerating damaged heart tissue
Which structure is found in the cytoplasm of a prokaryotic cell, but is not found in the cytoplasm of a eukaryotic cell?
A magnifying glass is an example of which type of microscope?
Which statement is one component of the cell theory?
A cell is the basic unit of structure and function of all organisms.
The table lists some organelles and functions. Only one pair is correctly matched.
Which organelle in the table is correctly matched with its function?
Consider this animal cell.
Which organelles are labeled G?
Which type of stem cells are most limited in differentiation?
adult stem cells
A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how the cell could be classified?
The cell is eukaryotic because it has chloroplasts.
What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?
It would swell and then burst.
Which organelles are found in plant cells but not in animal cells?
cell wall, chloroplasts
What is the entire object shown in the image?
What role do white blood cells perform in a human body?
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