Question 1

Plants use microscopic muscles to push sugars through their organs.

Accepted Answer

Plants do not have muscles; they use a combination of osmotic pressure, capillary action, and transpiration to move sugars and other nutrients through their vascular system.

Question 2

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

Accepted Answer

Aristotle believed that plants get most of what they need to grow from the soil, not the air. This was a common belief at the time, but it was later discovered that plants actually obtain most of their nutrients from the air through a process called photosynthesis.

Question 3

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 the ground tissue, which is a type of plant tissue. Therefore, the statement is true.

Question 4

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 one of the types of water-conducting cells found in the xylem of plants. They are elongated cells with thick, lignified cell walls. The thick cell walls provide structural support to the plant and prevent the collapse of tracheids under the tension created by transpiration, which is the process of water movement from the roots to the leaves through the xylem. Thus, the given statement is true.

Question 5

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

Accepted Answer

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

Question 6

Venus flytraps are known to have captured and consumed small mammals.

Accepted Answer

Venus flytraps typically only capture and consume insects and other arthropods. While there have been cases of small animals, such as frogs or lizards, being trapped in the plants, they are not known to regularly capture and consume mammals.

Question 7

Root caps are aided by mucilage in order to move in abrasive soil.

Accepted Answer

Root caps secrete mucilage, a slimy substance that lubricates the surface of the soil and protects the root tip from abrasion, allowing it to move through the soil more easily.

Question 8

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

Accepted Answer

The waxy cuticle is a feature of the aerial parts of the plant, primarily the leaves and stems, to prevent water loss; roots do not have a waxy cuticle.

Question 9

Flowers are an example of a plant organ.

Accepted Answer

Flowers are a reproductive organ of a plant.

Question 10

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

In plants, the movement of water and minerals through the xylem is primarily driven by transpiration and does not require the expenditure of metabolic energy, unlike in animals where muscle contractions, which require energy, are involved in the circulation of nutrients and water.

Question 11

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

Accepted Answer

Flowering plants with leaves containing parallel veins are most likely monocots, while dicots typically have leaves with branching veins.

Question 12

Fungi can clog tracheids and vessels,which causes a plant's ________ system to wilt.

Accepted Answer

The answer of Fungi can clog tracheids and vessels,which causes...

Question 13

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

Accepted Answer

Carnivorous plants have evolved to supplement their nutrient requirements by trapping and digesting insects or other small animals. This adaptation is usually seen in habitats where the soil is nutrient-poor or deficient in nitrogen and phosphorus.

Question 14

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 15

Trees,although immobile,can take defensive measures against harmful insects.

Accepted Answer

Trees can produce chemicals and resins to ward off or repel harmful insects, as a form of self-defense.

Question 16

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 17

When tension is produced during ________,a column of water is able to extend and move all the way from the roots through the xylem.

Accepted Answer

The answer of When tension is produced during ________,a column...

Question 18

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, slender roots that grow from the stem or base of the plant, rather than one main root. The roots of grasses and many other herbaceous plants are examples of fibrous root systems.

Question 19

Plant spines or thorns are examples of modified leaves.

Accepted Answer

Plant spines and thorns are adaptations that have evolved from modified leaves to deter herbivores or to help support the plant.

Question 20

A carrot is an example of a taproot system.

Accepted Answer

Carrots have a taproot system, which means the primary root is large and grows straight down.

Quiz 34: Plant Structure, Nutrition, and Transport