Question 1

Which of the following is a primary reason plants are considered essential to life on Earth?

Accepted Answer

They produce oxygen through photosynthesis.

Question 2

Plants evolved from a group of green algae called charophytes. Which feature did plants inherit from charophytes?

Accepted Answer

Cellulose in cell walls

Question 3

Which equation best represents the process of photosynthesis in plants?

Accepted Answer

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

Question 4

Which of the following is a disadvantage for plants living on land compared to aquatic environments?

Accepted Answer

Risk of dehydration

Question 5

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

Accepted Answer

Conducting water and minerals from roots to plant tissues

Question 6

Which plant group is characterized by ciliated sperm, lack of vascular tissue, and reproduction via spores?

Accepted Answer

Bryophytes

Question 7

In bryophytes, which stage is responsible for producing sperm and eggs?

Accepted Answer

Gametophyte

Question 8

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

Accepted Answer

Seeds produced inside an ovary

Question 9

A plant has well-developed roots, vascular tissue, and produces spores but not seeds. To which group does it most likely belong?

Accepted Answer

Lycophytes or Pterophytes

Question 10

Which of the following best describes the role of phloem in plants?

Accepted Answer

Distributes sugars to plant tissues

Question 11

Which equation represents the storage of food energy in plants as starch?

Accepted Answer

$$n(C_6H_{12}O_6$) \rightarrow (C_6H_{10}O_5$)_n + nH_2O$$

Question 12

Which ethnobotanical use is correctly matched with its plant?

Accepted Answer

Spruce: Pitch used as gum to treat sore throat

Question 13

Which plant group is most likely to be found in disturbed sites and is important for water absorption?

Accepted Answer

Bryophytes

Question 14

Which of the following is a real-world example of plant-derived medicine used by indigenous people?

Accepted Answer

Spruce pitch used as gum for sore throat

Question 15

Which of the following is NOT a characteristic shared by all plants?

Accepted Answer

Production of seeds

Question 16

Which plant group produces 'naked' seeds not enclosed in an ovary?

Accepted Answer

Gymnosperms

Question 17

A child with chicken pox is traditionally treated with a bath made from which plant?

Accepted Answer

Soap Berry

Question 18

Which plant group is most closely related to the ancestors of all land plants?

Accepted Answer

Charophytes

Question 19

Which of the following is a benefit for plants moving from aquatic to terrestrial environments?

Accepted Answer

Greater access to sunlight

Question 20

Which plant is used as an eye wash to treat pink eye according to ethnobotanical knowledge?

Accepted Answer

Kinnikinik

Plant Evolution, Diversity, and Ethnobotany: Study Notes

Study Guide - Practice Questions