| A | B |
|---|
A photograph of a virus is shown below. The projections on the surface of this virus allow the virus to,  | attach to a host,  |
The theory of endosymbiosis explains,  | The origin on Eurokryotes,  |
Some students used information they gathered from lab investigations to prepare a table. They entered the table in their lab notebooks. Which of these correctly identifies the two cells described in the table?,  | Cell 1 is prokaryatic and cell 2 is eurkaryotic,  |
After a cell was treated with a certain chemical, its Golgi apparatus stopped functioning. Which cellular process was immediately affected by this change?,  | sorting and packaging of proteins,  |
Some students were asked to identify which cells contain the greatest number of mitochondria. They were given the following choices: blood, epidermal, cardiac, and nerve cells. Which of the following is the best response?,  | Cardiac muscle cells, because the heart must work all the time, requiring constant energy,  |
The picture shows a student using a microscope to study a prepared slide of a singlecelled organism. A single-celled organism can be classified as a prokaryote based on the absence of,  | A NUCLEUS,  |
The diagram shows the levels of organization in human systems. What level of organization is represented by IV?,  | Organelle,  |
Certain poisons are toxic to organism because they interfere with the function of ribosomes. What is the result of this interference?,  | The cCell is unable to synthesize proteins.,  |
| Selena learns that, as specialized cells mature, certain organelles increase in quantity while other organelles may disappear. She also learns that muscle cells require large quantities of energy in the form of ATP. Based on this, she can predict that muscle cells would contain an unusually high number of, | MITOCHONDRIA,  |
Which of the following organelles is correctly paired with its specific cellular function? i. Lysosome: breakdown of waste products ii. Vacuole: storage of water, nutrients, and other materials iii. Chloroplast: transport of materials iv. Cytoskeleton: storage of hereditary information,  | i and ii,  |
What is the function of the cell membrane?,  | It controls what goes in and out of the cell,  |
2 The smooth endoplasmic reticulum performs several cellular functions, including the production of lipids and steroids. It also plays a vital role in the detoxification of poisons, drugs, and alcohol. Liver cells play a major role in detoxifying blood. What would a scientist most likely observe in the liver cells of an individual who is a heavy drinker of alcoholic beverages?,  | An increased amount of smooth ER,  |
Does the cell shown in the diagram above represent a plant cell or animal cell?,  | A plant cell because it is surrounded by a cell wall,  |
| If structure B was removed, how would the cell be affected?, | It would lose its shape.,  |
| If structure G was removed, how would the cell be affected?, | It would be unable to pack, sort, and transport molecules.,  |
The picture shows a 3-D model of a virus called a bacteriophage. Bacteriophages can infect bacteria such as E. coli.In what way are the bacteriophage and E. coli alike?,  | They lack membrane-bound organelles.,  |
