Question Why are lysosomes important to the health of cells?(1 point) Responses They create cell boundaries and make cells rigid. They create cell boundaries and make cells rigid. They break down worn-out cell parts that are no longer needed. They break down worn-out cell parts that are no longer needed. They allow cell organelles to move freely through the cell as needed. They allow cell organelles to move freely through the cell as needed. They move proteins around the cell. They move proteins around the cell.
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The correct response is: They break down worn-out cell parts that are no longer needed.
Which of the following organelles provide structure and rigidity to a plant cell?(1 point) Responses chloroplast chloroplast cell membrane cell membrane ribosome ribosome cell wall
The correct response is: cell wall. The cell wall provides structure and rigidity to a plant cell.
What would happen to a plant if the chloroplasts in its cells became damaged?(1 point) Responses The plant would not make glucose and oxygen. The plant would not make glucose and oxygen. The plant would be unable to make protein. The plant would be unable to make protein. The plant would be unable to reproduce. The plant would be unable to reproduce. The plant would not have a rigid structure.
The correct response is: The plant would not make glucose and oxygen. If the chloroplasts in a plant cell become damaged, the plant would not be able to carry out photosynthesis, which is the process by which plants produce glucose and oxygen.
Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts.(1 point) Responses Root cells have two central vacuoles. Root cells have two central vacuoles. Roots are underground and are not exposed to sunlight. Roots are underground and are not exposed to sunlight. Roots require fewer nutrients. Roots require fewer nutrients. Root cells have many mitochondria
The correct response is: Roots are underground and are not exposed to sunlight. Chloroplasts are responsible for carrying out photosynthesis, which requires sunlight. Since root cells are underground and do not receive direct exposure to sunlight, they do not possess chloroplasts.
What is the main difference between prokaryotic and eukaryotic cells?(1 point) Responses Prokaryotes lack membrane-bound organelles. Prokaryotes lack membrane-bound organelles. Prokaryotes use RNA instead of DNA. Prokaryotes use RNA instead of DNA. Prokaryotes lack ribosomes to make proteins. Prokaryotes lack ribosomes to make proteins. Prokaryotes lack a cell membrane on the outside.
The correct response is: Prokaryotes lack membrane-bound organelles. One of the main differences between prokaryotic and eukaryotic cells is that prokaryotic cells do not possess membrane-bound organelles, such as a nucleus, mitochondria, or endoplasmic reticulum. In contrast, eukaryotic cells have these membrane-bound organelles which perform specific functions within the cell.
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