Question 1

The type of plant tissue indicated by the letter A in the diagram below of a plant stem is ground tissue.

Accepted Answer

The letter A in the diagram represents ground tissue, which is a type of plant tissue that has various functions, including storage, photosynthesis, and support.

Question 2

Flowers are an example of a plant organ.

Accepted Answer

Flowers are reproductive organs of plants.

Question 3

A high-quality soil provides everything needed for plant growth.

Accepted Answer

While high-quality soil provides many essential nutrients and a good environment for plant growth, plants typically also need sunlight, water, and in some cases, additional nutrients or soil amendments to thrive.

Question 4

The difference in ____________________ between the sugar-loading zone and the sugar-unloading zone drives the long-distance transport of sugars through the phloem.

Accepted Answer

The answer of The difference in ____________________ between the sugar-loading...

Question 5

____________________ are secondary plant compounds that evolved in plants to protect them from attack by fungi, bacteria, and insects and might enhance the human immune system.

Accepted Answer

The answer of ____________________ are secondary plant compounds that evolved...

Question 6

Most carnivorous plants obtain energy through photosynthesis; they consume insects to obtain ____________________.

Accepted Answer

The answer of Most carnivorous plants obtain energy through photosynthesis;...

Question 7

Essential oils from plants like peppermint and sage are used by plants as protection from bacteria, fungi, and plant-eating animals.

Accepted Answer

Essential oils from plants have been found to have antimicrobial and insecticidal properties which can protect the plant from various threats including bacteria, fungi, and plant-eating animals.

Question 8

To conserve water, desert plants may have leaves that are reduced or entirely absent, in which case the plant's stems can perform photosynthesis.

Accepted Answer

Desert plants have adapted to survive in arid environments by reducing water loss through various adaptations such as reduced or absent leaves, and in some cases, performing photosynthesis through their stems. This allows the plant to conserve water while still producing energy through photosynthesis.

Question 9

The reason that the cell walls of tracheids are so thick is to prevent them from collapsing under the tension created by transpiration.

Accepted Answer

Tracheids are specialized cells in plants that play a key role in water transport. Their long, narrow shape and thick cell walls help them withstand the tension created by transpiration, which is the process by which water evaporates from leaves and draws more water up from the roots. If the cell walls were not thick enough, the tracheids could collapse under this tension and interrupt the flow of water through the plant.

Question 10

A flowering plant with leaves containing parallel veins is most likely a dicot.

Accepted Answer

A flowering plant with leaves containing parallel veins is most likely a monocot. Dicots typically have leaves with branched veins.

Question 11

The roots of a plant are covered with a waxy cuticle.

Accepted Answer

The roots of a plant are not covered with a waxy cuticle. The waxy cuticle is present on the leaves and stems to prevent water loss.

Question 12

____________________ is the evaporation of water from the surface of a leaf.

Accepted Answer

The answer of ____________________ is the evaporation of water from...

Question 13

Plants use microscopic muscles to push sugars through their organs.

Accepted Answer

Plants do not have muscles in the same way that animals do. Instead, they use specialized cells and structures, such as phloem tissue, to transport sugars and other nutrients throughout their organs.

Question 14

A carrot is an example of a taproot system.

Accepted Answer

Carrots have a taproot system, which means that their primary root grows deep into the soil, and smaller roots branch off of it.

Question 15

Many plants and animals move water and nutrients within internal vessels. Animals use the energy of muscle contraction; however, no metabolic energy is expended when water and minerals move within a plant's xylem.

Accepted Answer

Plants transport water and minerals through the xylem using passive mechanisms such as transpiration pull, root pressure, and capillary action. No metabolic energy is required for this process.

Question 16

Aristotle showed that plants get most of what they need to grow from the air.

Accepted Answer

Aristotle believed that plants obtained their nourishment from the soil and water, rather than from the air. It wasn't until centuries later that scientists like Jan Baptista van Helmont began to prove otherwise.

Question 17

Fibrous root systems have one predominant root and many smaller roots near the top of the main root.

Accepted Answer

Fibrous root systems have many small roots that grow from the stem of the plant, but no main, prominent root. This is in contrast to taproot systems, which have one primary root that grows downwards with smaller secondary roots branching off from it.

Question 18

The tension produced during transpiration ____________________ [pushes or pulls] a column of water extending all the way to the roots through the xylem.

Accepted Answer

The answer of The tension produced during transpiration ____________________ [pushes...

Question 19

Flowers, rather than leaves, develop when a small number of genes are turned on.

Accepted Answer

This statement is true. The development of flowers is triggered by the activation of certain genes, such as floral meristem identity genes. These genes are responsible for the formation of floral organs, such as petals and sepals, instead of leaves.

Question 20

Carnivorous plants are often found in habitats deficient in nitrogen and phosphorus.

Accepted Answer

Carnivorous plants have evolved to obtain nutrients such as nitrogen and phosphorus from insects and other prey that they capture, as their habitats are often deficient in these important nutrients.

Quiz 35: Plant Structure, Nutrition, and Transport