Question 1

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

Accepted Answer

Plants alternate between haploid gametophyte (produces gametes by mitosis) and diploid sporophyte (produces spores by meiosis) stages.

Question 2

Which plant group is characterized by 'naked seeds' not enclosed in fruit, and includes conifers and cycads?

Accepted Answer

Gymnosperms

Question 3

A botanist discovers a plant with parallel leaf veins, fibrous roots, and flower parts in multiples of three. Which type of plant is this?

Accepted Answer

Monocot

Question 4

Which of the following correctly matches the plant tissue type with its primary function?

Accepted Answer

Vascular tissue – transport of water and nutrients

Question 5

Which process is responsible for the movement of water from roots to leaves in tall trees, and what is the main driving force?

Accepted Answer

Transpiration; evaporation of water from leaf surfaces

Question 6

Double fertilization is a unique feature of which plant group, and what are its products?

Accepted Answer

Angiosperms; embryo and endosperm

Question 7

Which of the following is NOT a function of mycorrhizae in plant roots?

Accepted Answer

Producing pollen for fertilization

Question 8

A plant cell is observed to have thick secondary walls and provides rigid support. Which cell type is this most likely to be?

Accepted Answer

Sclerenchyma

Question 9

Which of the following correctly describes the difference between sporophytes and gametophytes?

Accepted Answer

Sporophytes are diploid and produce spores by meiosis; gametophytes are haploid and produce gametes by mitosis.

Question 10

Which of the following is a micronutrient required by plants in trace amounts?

Accepted Answer

Iron ($$Fe)$$

Question 11

A scientist is studying a plant that produces pollen and ovules, has flowers, and undergoes double fertilization. Which group does this plant belong to?

Accepted Answer

Angiosperms

Question 12

Which layer of soil is richest in organic matter and is typically found at the surface?

Accepted Answer

O Horizon

Question 13

Which of the following plant groups is dominant on land today and is the most diverse?

Accepted Answer

Angiosperms

Question 14

Which of the following correctly matches a flower part with its function?

Accepted Answer

Stigma – receives pollen

Question 15

Which equation correctly represents the process of nitrogen fixation performed by Rhizobium bacteria?

Accepted Answer

$$N_2$$ \rightarrow $$NH_3$$

Question 16

Which of the following is a correct comparison between monocots and dicots?

Accepted Answer

Monocots have parallel leaf veins; dicots have netlike leaf veins.

Question 17

Which of the following is a real-world example of a plant structure adapted for water transport, and what is the main mechanism involved?

Accepted Answer

Xylem vessels; cohesion and adhesion

Question 18

A pine tree produces pollen in male cones and ovules in female cones. What type of plant is this, and what is its dominant life stage?

Accepted Answer

Gymnosperm; sporophyte

Question 19

Which of the following best explains why giant sequoias and bristlecone pines are considered the largest and oldest land plants?

Accepted Answer

They are gymnosperms with woody stems and long lifespans.

Question 20

Which of the following correctly describes the function of phloem in plants?

Accepted Answer

Transports sugars and organic nutrients throughout the plant

Plant Diversity, Structure, and Nutrition: Study Guide for BIO 112 (Ch. 29, 30, 35–37)

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