CLEP Biology Plant Reproduction and Structure 3

Question 1

In gymnosperms, the female gametophyte is located within the:

Accepted Answer

Ovule

Answer

In gymnosperms, the ovule contains the female gametophyte (megagametophyte), which produces the egg cell for fertilization.

Question 2

Which of the following best describes the sporophyte generation in land plants?

Accepted Answer

The diploid, spore-producing generation

Answer

The sporophyte is the diploid (2n) generation that produces spores via meiosis in the alternation of generations life cycle.

Question 3

In ferns, the gametophyte is called the:

Accepted Answer

Prothallus

Answer

The prothallus is the small, heart-shaped, independent haploid gametophyte of ferns that produces both eggs and sperm.

Question 4

The sori found on the underside of fern fronds are:

Accepted Answer

Clusters of sporangia that produce spores

Answer

Sori are clusters of sporangia (spore-producing structures) found on the lower surface of fern fronds.

Question 5

Which feature distinguishes vascular plants from non-vascular plants (bryophytes)?

Accepted Answer

Presence of xylem and phloem

Answer

Vascular plants possess xylem (water transport) and phloem (food transport) tissues, which are absent in bryophytes.

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