Question 1

Which of the following adaptations was crucial for plants to colonize land and prevent water loss?

Accepted Answer

Development of a waxy cuticle

Question 2

In the alternation of generations in plants, which stage is responsible for producing gametes?

Accepted Answer

Gametophyte

Question 3

Which equation correctly represents the chromosome number change during meiosis in the plant life cycle?

Accepted Answer

$$2n \rightarrow n$$

Question 4

Which group of plants is characterized by the absence of vascular tissue and the requirement of water for sexual reproduction?

Accepted Answer

Bryophytes

Question 5

What is the main function of fruit in angiosperms?

Accepted Answer

To protect and help disperse seeds

Question 6

Which of the following is a benefit of asexual reproduction in plants?

Accepted Answer

High plantlet survival rate

Question 7

Which plant group produces 'naked seeds' that are not enclosed by an ovary?

Accepted Answer

Gymnosperms

Question 8

During sexual reproduction in angiosperms, what is the result of the fusion of one sperm nucleus with two polar nuclei?

Accepted Answer

Formation of a triploid cell that develops into endosperm

Question 9

Which of the following is NOT a method of vegetative (asexual) reproduction in seed plants?

Accepted Answer

Pollination by wind

Question 10

Which adaptation allows vascular plants to grow taller and transport water efficiently?

Accepted Answer

Development of xylem and phloem

Question 11

Which equation best describes the fertilization event in the plant life cycle?

Accepted Answer

$$n + n \rightarrow 2n$$

Question 12

Which of the following is a cost of asexual reproduction in plants?

Accepted Answer

Reduced ability to adapt due to lack of diversity

Question 13

Which plant group is the largest and most diverse, with seeds enclosed in fruits?

Accepted Answer

Angiosperms

Question 14

Which structure in flowering plants stores and supplies nutrients to the embryo?

Accepted Answer

Cotyledon

Question 15

Which of the following is a benefit of sexual reproduction in plants?

Accepted Answer

High genetic diversity

Question 16

Which plant group is thought to have evolved from Charophytes (green algae)?

Accepted Answer

Land plants

Question 17

Which of the following is a real-world example of a symbiotic relationship in plants?

Accepted Answer

Mycorrhizal relationship between roots and fungi

Question 18

Which equation represents the process of spore formation in the plant life cycle?

Accepted Answer

$$2n \xrightarrow{meiosis} n$$

Question 19

Which of the following is a cost of sexual reproduction in plants?

Accepted Answer

More energy required to produce reproductive structures

Question 20

Which plant group contains lignin, a key component for strength and rigidity in vascular tissue?

Accepted Answer

Lycophytes and Pterophytes

L9b Biodiversity

Study Guide - Practice Questions