Question 1

Which of the following is a key adaptation that enabled plants to colonize land and is found in both charophytes and land plants?

Accepted Answer

Sporopollenin

Question 2

In the life cycle of mosses, which generation is dominant and longer-living?

Accepted Answer

Gametophyte

Question 3

Which structure in vascular plants is primarily responsible for the transport of water and minerals, and is strengthened by lignin?

Accepted Answer

Xylem

Question 4

A botanist discovers a plant with small, spine-shaped leaves containing a single vein. Which type of leaf is this?

Accepted Answer

Microphyll

Question 5

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

Accepted Answer

Plants alternate between multicellular haploid gametophytes and multicellular diploid sporophytes

Question 6

Which of the following is NOT a trait shared by land plants and charophytes?

Accepted Answer

Multicellular, dependent embryos

Question 7

What is the primary ecological role of mosses in moist forests and wetlands?

Accepted Answer

They reduce nitrogen loss from soil and harbor nitrogen-fixing cyanobacteria

Question 8

Which of the following plant groups is most closely related to land plants based on morphological and molecular evidence?

Accepted Answer

Charophytes

Question 9

Which of the following is a derived trait of land plants that is absent in charophytes?

Accepted Answer

Multicellular gametangia

Question 10

A plant species produces two types of spores: megaspores and microspores. What is this condition called?

Accepted Answer

Heterosporous

Question 11

Which equation correctly represents the ploidy change during fertilization in the plant life cycle?

Accepted Answer

$$n + n \rightarrow 2n$$

Question 12

Which of the following is true about seedless vascular plants?

Accepted Answer

They have well-developed roots and leaves

Question 13

Which plant group forms extensive deposits of peat, which can be used as a source of fuel?

Accepted Answer

Sphagnum mosses

Question 14

Which of the following statements about the evolution of land plants is correct?

Accepted Answer

Vascular plants evolved before seed plants

Question 15

Which structure in mosses is responsible for anchoring the gametophyte to the substrate?

Accepted Answer

Rhizoid

Question 16

Which of the following is a function of the cuticle in land plants?

Accepted Answer

Prevents water loss

Question 17

Which of the following best explains why seedless vascular plants are usually restricted to moist environments?

Accepted Answer

Their sperm are flagellated and require water to swim to the egg

Question 18

Which of the following plant groups is NOT classified as a bryophyte?

Accepted Answer

Ferns

Question 19

Which of the following is a real-world consequence of the formation of Carboniferous forests by seedless vascular plants?

Accepted Answer

Formation of coal deposits

Question 20

Which of the following is the correct sequence of evolutionary events in land plants?

Accepted Answer

Origin of nonvascular plants → origin of vascular plants → origin of seed plants

Plant Diversity I: How Plants Colonized Land

Study Guide - Practice Questions