Question 1

Which of the following best describes the main difference between spores and seeds in seed plants?

Accepted Answer

Spores are single-celled and very tough, while seeds are multicellular embryos with a food supply and a protective coat.

Question 2

In seed plants, what is the function of the integument?

Accepted Answer

It develops into the seed coat that protects the embryo.

Question 3

Which structure in seed plants produces megaspores?

Accepted Answer

Megasporangia

Question 4

What is the correct sequence of events during fertilization in seed plants?

Accepted Answer

Pollen grain lands on ovule → pollen tube extends into egg nucleus → fertilization occurs

Question 5

Which of the following is true about gymnosperms?

Accepted Answer

They have naked seeds not enclosed in an ovary.

Question 6

A botanist discovers a plant with needle-shaped leaves, thick cuticles, and seeds produced in cones. To which phylum does this plant most likely belong?

Accepted Answer

Phylum Coniferophyta

Question 7

Which of the following statements about the life cycle of seed plants is correct?

Accepted Answer

The gametophyte develops inside the sporophyte.

Question 8

Which of the following is a unique feature of angiosperms compared to gymnosperms?

Accepted Answer

Double fertilization resulting in a triploid endosperm

Question 9

If a plant has flower parts in multiples of three and parallel leaf venation, it most likely belongs to which group?

Accepted Answer

Monocots

Question 10

Which of the following best explains the evolutionary advantage of seeds over spores?

Accepted Answer

Seeds contain an embryo, stored food, and a protective coat, increasing survival in harsh conditions.

Question 11

Which of the following is NOT a function of fruit in angiosperms?

Accepted Answer

Providing nutrients to the embryo during germination

Question 12

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

Accepted Answer

Anther – produces pollen grains

Question 13

A plant species has separate male and female trees and produces fleshy fruit-like seeds. Which phylum does it most likely belong to?

Accepted Answer

Phylum Ginkgophyta

Question 14

Which of the following is a correct description of double fertilization in angiosperms?

Accepted Answer

One sperm fertilizes the egg, and the other fuses with two polar nuclei to form the triploid endosperm.

Question 15

Which of the following is true about the xylem cells in angiosperms?

Accepted Answer

Most angiosperms have vessel elements in addition to tracheids.

Question 16

Which type of fruit develops from a single flower with many carpels?

Accepted Answer

Aggregate fruit

Question 17

Which of the following is a real-world example of a multiple fruit?

Accepted Answer

Pineapple

Question 18

Which equation best represents the ploidy change during double fertilization in angiosperms?

Accepted Answer

$$n + n \rightarrow 2n ($$zygote); $$n + n + n \rightarrow 3n ($$endosperm)

Question 19

Which of the following is NOT a characteristic of conifers?

Accepted Answer

Presence of flowers and fruits

Question 20

Which of the following best explains why many fleshy fruits are advantageous for seed plants?

Accepted Answer

They attract animals, which help disperse the seeds to new locations.

Seed Plants: Structure, Diversity, and Reproduction

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