Question 1

Which of the following best describes the alternation of generations in land plants?

Accepted Answer

A life cycle in which plants alternate between multicellular haploid (1N) gametophytes and multicellular diploid (2N) sporophytes

Question 2

Which structure in mosses is responsible for producing haploid spores, and what process leads to their formation?

Accepted Answer

The sporangium, by meiosis

Question 3

Why are mosses and other bryophytes generally limited in height compared to vascular plants?

Accepted Answer

They do not have vascular tissues such as xylem and phloem

Question 4

Which of the following is a correct sequence of evolutionary relationships among the groups shown in the first image (phylogenetic tree)?

Accepted Answer

Red algae → Chlorophytes → Charophytes → Embryophytes

Question 5

What is the main function of the apical meristem in plants?

Accepted Answer

To provide localized regions of cell division for growth at root and shoot tips

Question 6

Which of the following best explains why vascular tissue was a key innovation for the evolution of tall plants?

Accepted Answer

It enabled efficient transport of water, minerals, and nutrients, supporting greater height

Question 7

In the moss life cycle, which structure is haploid and directly gives rise to the gametophyte?

Accepted Answer

Spore

Question 8

Which of the following is NOT a characteristic of seedless vascular plants?

Accepted Answer

Production of seeds

Question 9

A botanist discovers a plant with club-shaped cones called strobili, vascular tissue, and homosporous spore production. To which phylum does this plant most likely belong?

Accepted Answer

Phylum Lycophyta

Question 10

Which of the following correctly matches the plant group with its dominant life cycle stage?

Accepted Answer

Bryophytes – dominant gametophyte

Question 11

Which of the following terms refers to the root-like structure that anchors moss gametophytes but does not conduct water or nutrients?

Accepted Answer

Rhizoid

Question 12

Which process is responsible for the formation of the diploid zygote in the moss life cycle?

Accepted Answer

Fusion of sperm and egg during fertilization

Question 13

Which of the following is a real-world consequence of the lack of vascular tissue in bryophytes?

Accepted Answer

They are restricted to moist environments and low-growing forms

Question 14

Which phylum contains the greatest number of known plant species according to the provided table?

Accepted Answer

Phylum Anthophyta

Question 15

Which of the following best describes the function of xylem in vascular plants?

Accepted Answer

Conducts water and minerals using dead cells called tracheids

Question 16

A plant is observed to have a dominant sporophyte generation, vascular tissue, and produces spores but not seeds. Which group does it most likely belong to?

Accepted Answer

Seedless vascular plants

Question 17

Which of the following is a key evolutionary advantage provided by increased plant height in vascular plants?

Accepted Answer

Greater access to sunlight and improved spore dispersal

Question 18

Which of the following is true regarding meiosis and mitosis in the plant life cycle?

Accepted Answer

Only diploid cells can undergo meiosis, while both haploid and diploid cells can undergo mitosis

Question 19

Which of the following structures is responsible for producing eggs in mosses?

Accepted Answer

Archegonia

Question 20

Which of the following best explains why sperm in mosses require water to reach the egg?

Accepted Answer

Sperm are flagellated and must swim through a film of water to fertilize the egg

Plant Diversity I: How Plants Colonized Land

Guida di studio - Domande di pratica

Study guide - Flashcard