Question 1

Which of the following is NOT a basic requirement for plant survival?

Accepted Answer

Sugar

Question 2

Which plant tissue is primarily responsible for transporting water and dissolved minerals from roots to shoots?

Accepted Answer

Xylem

Question 3

A botanist observes that a plant's leaves are wilting, but the soil is moist. Which tissue is most likely malfunctioning?

Accepted Answer

Xylem

Question 4

Which of the following statements about guard cells and stomata is CORRECT?

Accepted Answer

Potassium ion ($$K^+) $$uptake by guard cells causes stomata to open

Question 5

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

Accepted Answer

Transporting sugars to the leaves

Question 6

Which statement about secondary growth in woody plants is TRUE?

Accepted Answer

It produces new xylem and phloem from the vascular cambium

Question 7

Which of the following best describes the difference between diffusion and active transport?

Accepted Answer

Diffusion moves things down a gradient; active transport moves things up a gradient

Question 8

A plant cell is placed in a solution with a lower water potential than the cell. What will happen?

Accepted Answer

Water will exit the cell

Question 9

Which of the following is NOT a micronutrient for plants?

Accepted Answer

Nitrogen

Question 10

Which statement about nitrogen-fixing bacteria is FALSE?

Accepted Answer

They are the main source of nitrogen for all plants

Question 11

Which of the following is NOT a mechanism plants use to defend against herbivory?

Accepted Answer

Photosynthesis

Question 12

Which of the following statements about transpiration is INCORRECT?

Accepted Answer

It is the main way sugars are transported in the phloem

Question 13

Which of the following is a FALSE statement about mycorrhizal associations?

Accepted Answer

They are a type of parasitic relationship

Question 14

Which hormone is primarily responsible for cell elongation in plants?

Accepted Answer

Auxin

Question 15

Which of the following best explains why water moves up through the xylem in tall trees?

Accepted Answer

Transpiration and cohesion-tension

Question 16

Which of the following is NOT a function of phytochrome in plants?

Accepted Answer

Converting light energy to chemical energy

Question 17

Which of the following is a correct statement about the Casparian strip?

Accepted Answer

It is found in the endodermis and blocks passive flow of substances into the vascular cylinder

Question 18

Which of the following is NOT a result of blue light activation in plants?

Accepted Answer

Seed germination

Question 19

Which of the following is NOT a possible response to drought stress in plants?

Accepted Answer

Increasing transpiration

Question 20

Which of the following statements about bulk flow is TRUE for both xylem and phloem?

Accepted Answer

It is driven by pressure differences

Plant Structure, Growth, and Responses: Study Guide and Practice Questions

Study Guide - Practice Questions