Question 1

Which of the following adaptations was crucial for plants to colonize land and avoid desiccation while allowing gas exchange for photosynthesis?

Accepted Answer

Evolution of a waxy cuticle and stomata

Question 2

Fungi are more closely related to which group than to plants, based on molecular and morphological evidence?

Accepted Answer

Animals

Question 3

Which of the following best describes the mutualistic relationship known as mycorrhizae?

Accepted Answer

Fungi transfer phosphate ions and minerals to plants, and plants provide sugars to fungi

Question 4

Which of the following is a key evolutionary advantage of seeds over spores for terrestrial plants?

Accepted Answer

Seeds contain a multicellular embryo, stored food, and a protective coat

Question 5

Which of the following statements about fungal nutrition is correct?

Accepted Answer

Fungi absorb nutrients after secreting hydrolytic enzymes to break down complex molecules

Question 6

Which of the following best explains why bryophytes are limited to moist habitats?

Accepted Answer

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

Question 7

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

Accepted Answer

Multicellular, dependent embryos

Question 8

What is the main function of lignified vascular tissue in plants?

Accepted Answer

To provide structural support and allow plants to grow tall

Question 9

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

Accepted Answer

A life cycle alternating between multicellular haploid gametophyte and multicellular diploid sporophyte

Question 10

Which adaptation allowed seed plants to reproduce without the need for water for fertilization?

Accepted Answer

Evolution of pollen grains

Question 11

Which of the following is a correct statement about the role of fungi in ecosystems?

Accepted Answer

Fungi decompose organic material, recycling nutrients back into the ecosystem

Question 12

Which of the following best explains why vascular tissue was a key innovation for the colonization of land by plants?

Accepted Answer

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

Question 13

Which of the following is true about the fungal life cycle?

Accepted Answer

Fungi reproduce by producing spores, and sexual reproduction involves plasmogamy and karyogamy

Question 14

Which of the following is a real-world example of a mutualistic relationship involving fungi?

Accepted Answer

A lichen, where a fungus and a photosynthetic microorganism live together and break down rock

Question 15

Which of the following best describes the evolutionary significance of sporopollenin in plant spores?

Accepted Answer

It protects spores from desiccation and UV damage, enabling survival in harsh terrestrial environments

Question 16

Which of the following is a distinguishing feature of ascomycetes compared to other fungal groups?

Accepted Answer

They produce cup-shaped fruiting bodies called ascocarps

Question 17

Which of the following best explains why gymnosperms were better suited than nonvascular plants to drier conditions during the early Permian?

Accepted Answer

They had seeds, pollen, thick cuticles, and needle-like leaves to reduce water loss

Question 18

Which of the following is a correct statement about the alternation of generations in ferns?

Accepted Answer

The sporophyte is the dominant, familiar leafy plant, and the gametophyte is small and independent

Question 19

Which of the following is a function of phloem in vascular plants?

Accepted Answer

Distributing sugars, amino acids, and other organic products throughout the plant

Chapter 26: The Colonization of Land by Plants and Fungi

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