Question 1

Which of the following best describes the function of root hairs in the plant root system?

Accepted Answer

Root hairs increase the surface area for water and mineral absorption.

Question 2

A botanist observes a plant with a taproot system. Which of the following is most likely true about this plant?

Accepted Answer

It has a single, large primary root with smaller lateral roots branching off.

Question 3

Which tissue system in plants is primarily responsible for photosynthesis?

Accepted Answer

Ground tissue

Question 4

A plant is exposed to drought conditions. Which cellular structure is most directly involved in maintaining turgor pressure to prevent wilting?

Accepted Answer

Vacuole

Question 5

Which of the following is a function of the xylem tissue in vascular plants?

Accepted Answer

Transporting water and minerals from roots to shoots

Question 6

A leaf is described as having a blade and a petiole. What is the primary function of the petiole?

Accepted Answer

Connecting the leaf blade to the stem

Question 7

Which cell type in ground tissue is specialized for flexible support and is often found in growing regions of the plant?

Accepted Answer

Collenchyma

Question 8

A student examines a plant cell under a microscope and observes a thickened secondary wall. Which function is most associated with this feature?

Accepted Answer

Providing structural support and rigidity

Question 9

Which of the following best explains the role of plasmodesmata in plant cells?

Accepted Answer

They allow direct cytoplasmic exchange between adjacent cells.

Question 10

A plant with needlelike leaves is most likely adapted to which environmental condition?

Accepted Answer

Dry or cold environments to reduce water loss

Question 11

Which plastid is primarily responsible for photosynthesis in plant cells?

Accepted Answer

Chloroplast

Question 12

Which of the following equations best represents the process of photosynthesis occurring in the chloroplasts?

Accepted Answer

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

Question 13

Which tissue system includes the epidermis and is primarily responsible for protecting the plant from environmental damage?

Accepted Answer

Dermal tissue

Question 14

A plant is observed to have a rhizome. Which statement best describes a rhizome?

Accepted Answer

A horizontal underground stem that stores nutrients

Question 15

Which of the following cell types is most abundant in ground tissue and is responsible for metabolic functions such as photosynthesis and storage?

Accepted Answer

Parenchyma

Question 16

A compound leaf differs from a simple leaf in which way?

Accepted Answer

A compound leaf has multiple leaflets attached to a single petiole.

Question 17

Which of the following best describes the function of companion cells in the phloem?

Accepted Answer

They assist sieve tube elements in the transport of sugars.

Question 18

Phenotypic plasticity in plant roots allows plants to:

Accepted Answer

Alter root growth and structure in response to environmental conditions.

Question 19

Which of the following is NOT a function of the root cap?

Accepted Answer

Absorbing water and minerals from the soil

Question 20

A plant with a fibrous root system is most likely to be found in which type of environment?

Accepted Answer

Shallow soils where rapid absorption of water is advantageous

Plant Form and Function: Structure and Organization of the Plant Body

Study Guide - Practice Questions