Podcast
Questions and Answers
Which part of the plant body is known as the protoxylem?
Which part of the plant body is known as the protoxylem?
- Roots
- Flowers
- Stems (correct)
- Leaves
What happens to the end walls of a mature vessel cell?
What happens to the end walls of a mature vessel cell?
- They become thicker
- They remain unchanged
- They break down completely (correct)
- They become more flexible
Why does a fully mature xylem cell have no cytoplasm and nucleus?
Why does a fully mature xylem cell have no cytoplasm and nucleus?
- To prevent water loss
- To facilitate programmed cell death (correct)
- To allow for nutrient transport
- To make the cell wall thicker
Which type of cell is found in the xylem of gymnosperms?
Which type of cell is found in the xylem of gymnosperms?
Which type of cell is found in the phloem of angiosperms?
Which type of cell is found in the phloem of angiosperms?
Which type of cell is associated with sieve tubes in angiosperms?
Which type of cell is associated with sieve tubes in angiosperms?
Which type of cell in the phloem lacks a nucleus?
Which type of cell in the phloem lacks a nucleus?