Question 1

Which of the following is NOT a major consequence of the invention of agriculture around 10,000 years ago?

Accepted Answer

Decrease in human population size

Question 2

Which plant is the primary source of natural rubber?

Accepted Answer

Hevea brasiliensis

Question 3

Cellulose, the major component of plant cell walls, is best described as:

Accepted Answer

An unbranched polysaccharide of glucose residues

Question 4

Which adaptation allowed plants to colonize drier terrestrial environments approximately 500 million years ago?

Accepted Answer

Presence of cuticle and vascular tissue

Question 5

Which of the following drugs is derived from the bark of the cinchona tree and was historically used to treat malaria?

Accepted Answer

Quinine

Question 6

The process by which a nonphotosynthetic eukaryote engulfed a photosynthetic cyanobacterium, leading to the origin of plastids, is called:

Accepted Answer

Primary endosymbiosis

Question 7

Which feature is shared by both Charophytes and land plants, but NOT by all green algae?

Accepted Answer

Cell plate and phragmoplast formation during cell division

Question 8

Which of the following statements about alternation of generations in land plants is TRUE?

Accepted Answer

Both the gametophyte and sporophyte are multicellular

Question 9

Which plant secondary compound is used in chemotherapy for ovarian, breast, and lung cancer?

Accepted Answer

Taxol

Question 10

Which of the following is a direct ecological function of plants in terrestrial ecosystems?

Accepted Answer

Providing oxygen and energy for other organisms

Question 11

Which pigment is found in all photosynthetic eukaryotes and is essential for photosynthesis?

Accepted Answer

Chlorophyll a

Question 12

Which of the following is NOT a feature of all plants (Viridiplantae)?

Accepted Answer

Multicellular, jacketed sex organs

Question 13

Which adaptation protects plant spores and pollen from desiccation and decay?

Accepted Answer

Sporopollenin

Question 14

Which of the following best describes the role of plants in the 'Oxygen Revolution'?

Accepted Answer

Cyanobacteria initiated the oxygen revolution, later followed by plants

Question 15

Which of the following is a correct cladogram order for the evolution of plant groups?

Accepted Answer

Ancestral alga → Red algae → Chlorophyta → Charophyta → Embryophyta

Question 16

Which of the following is NOT a direct benefit of plants to humans?

Accepted Answer

Formation of large-scale war

Question 17

Which of the following is a correct formula for the photosynthesis reaction in plants?

Accepted Answer

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 18

Which of the following is a real-world example of a plant secondary compound used for pain relief?

Accepted Answer

Acetylsalicylic acid from willow (Salix)

Question 19

Which of the following is a feature unique to land plants (embryophytes) compared to their aquatic ancestors?

Accepted Answer

Retention of the zygote in maternal tissue

Question 20

Which of the following best explains why a traveler should be a botanist, according to Charles Darwin?

Accepted Answer

Plants are the chief embellishment in all views of nature

Plants and the Colonization of Land: Study Notes

Study Guide - Practice Questions