Why are lysosomes important to the health of cells?(1 point)
Responses
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 create cell boundaries and make cells rigid.
They create cell boundaries and make cells rigid.
They move proteins around the cell.
They move proteins around the cell.
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 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
ribosome
ribosome
cell membrane
cell membrane
cell wall
cell wall
chloroplast
cell wall
What would happen to a plant if the chloroplasts in its cells became damaged?(1 point)
Responses
The plant would be unable to make protein.
The plant would be unable to make protein.
The plant would not have a rigid structure.
The plant would not have a rigid structure.
The plant would be unable to reproduce.
The plant would be unable to reproduce.
The plant would not make glucose and oxygen.
The plant would not make glucose and oxygen.
The plant would not make glucose and oxygen.
Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts.(1 point)
Responses
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 two central vacuoles.
Root cells have two central vacuoles.
Root cells have many mitochondria.
Roots are underground and are not exposed to sunlight.
What is the main difference between prokaryotic and eukaryotic cells?(1 point)
Responses
Prokaryotes lack membrane-bound organelles.
Prokaryotes lack membrane-bound organelles.
Prokaryotes lack a cell membrane on the outside.
Prokaryotes lack a cell membrane on the outside.
Prokaryotes lack ribosomes to make proteins.
Prokaryotes lack ribosomes to make proteins.
Prokaryotes use RNA instead of DNA.
Prokaryotes lack membrane-bound organelles.
The correct answer is: "They break down worn-out cell parts that are no longer needed."
Explanation: Lysosomes are small organelles within cells that contain digestive enzymes. These enzymes help break down and remove waste, cellular debris, and old or damaged organelles. This process is known as autophagy and is crucial for maintaining overall cell health.
To find the correct answer, it is important to understand the function of lysosomes in a cell. Lysosomes perform various roles, such as recycling cellular materials, digesting engulfed particles, and breaking down harmful substances. However, breaking down worn-out cell parts that are no longer needed is a primary function of lysosomes, making them important for cellular health.