Question 1

Experiments suggest that the KNOX protein is closely associated with what plant hormone during the induction of leaf primordia?
A)auxin
B)ethanol
C)abscisic acid
D)ethylene
E)gibberellic acid

Accepted Answer

KNOX proteins are known to interact with gibberellic acid during the induction of leaf primordia, influencing plant growth and development.

Question 2

The mesophyll of the leaf
A)is located between the leaf veins.
B)is exposed to direct sunlight.
C)is mostly along the edges of the leaf.
D)is sometimes found in roots or stems.
E)is made up of palisade and spongy parenchyma cells.

Accepted Answer

The mesophyll of the leaf is composed of two types of parenchyma cells: palisade parenchyma and spongy parenchyma. These cells are located between the upper and lower epidermis and make up the majority of the leaf's interior. The mesophyll is not located along the edges of the leaf or in the veins, and it is not typically found in roots or stems. It is exposed to sunlight, but not directly.

Question 3

If a cross section of a eudicot herbaceous stem were compared with the cross section of its root,how would they differ?
A)location of dermal tissue
B)location of ground tissue
C)location of vascular tissue
D)location of terminal buds

Accepted Answer

The location of vascular tissue differs in eudicot herbaceous stems and roots. In stems, the vascular tissue is arranged in a ring, whereas in roots, the vascular tissue is arranged in the center, in a star pattern.

Question 4

Root hairs are specialized
A)connective tissues.
B)epidermal cells.
C)conductive tissues.

Accepted Answer

Root hairs are specialized epidermal cells. They are thin, elongated outgrowths of the root epidermis that increase the surface area of the root and enhance its ability to absorb water and minerals from the soil.

Question 5

A plant that you are studying has sluggish wound healing abilities as well as an inability to store significant food reserves.You would like to enhance these properties.If you could enhance the growth of a tissue to improve these properties,which tissue would you enhance?
A)parenchyma of the stem cortex
B)root apical meristem
C)periderm
D)lateral meristem

Accepted Answer

Parenchyma cells in the stem cortex are involved in storage and wound healing. Enhancing their growth could improve the plant's ability to store food reserves and heal wounds.

Question 6

What is the closest parallel in animal structural levels of complexity to the branches,buds,flowers,seeds,and fruits of flowering plants?
A)subcellular,specialized organelles
B)bone cells,muscle cells,skin cells,nerve cells
C)muscle tissue,connective tissue,nervous tissue,epithelial tissue
D)heart,lungs,stomach,kidney,reproductive organs
E)digestive system,reproductive system,skeletal system

Accepted Answer

The answer of What is the closest parallel in animal...

Question 7

Scientists discovered that the primary reason leaves either develop as simple or compound is related to
A)whether the KNOX gene is active or not active.
B)where the leaf primordium is positioned.
C)whether auxins are moving in the stem tip.
D)how fast the KNOX gene arrives at the primordium.
E)the protein PHANTASTICA and its interaction with auxins.

Accepted Answer

According to recent studies, the expression of the KNOX gene determines leaf morphology. When it is active, simple leaves develop, and when it is not active, compound leaves develop.

Question 8

Where in the eudicot plant root would you expect to find vascular tissue?
A)in the center
B)near the edge
C)between the ground and dermal tissue
D)scattered in the root
E)parallel to the edge

Accepted Answer

In eudicot roots, the vascular tissue is arranged in a central cylinder known as the stele. The stele is found in the center of the root, surrounded by the cortex and outer epidermis. This arrangement is also known as the eustele, which is a common feature of eudicot roots.

Question 9

Predict what would occur if you removed the shoot apical meristem of a plant embryo.
A)Growth would only occur at in the roots.
B)The plant would grow two or more new shoot apical meristems.
C)The root apical meristem would take over the function of the shoot apical meristem.
D)The plant would mature,but only through vertical growth--no branches would form.

Accepted Answer

The shoot apical meristem is responsible for the growth of the plant in the upward direction, including the formation of branches and leaves. Without the shoot apical meristem, growth would only occur in the roots, resulting in a stunted and malformed plant.

Question 10

How can one distinguish between annuals,biennials,and perennials?
A)how tall they grow
B)the number of flowers they produce
C)the amount of root development
D)the environment they grow in
E)the time from seed germination to seed production

Accepted Answer

The time from seed germination to seed production is the most defining characteristic of annuals, biennials, and perennials. Annuals complete their life cycle in one growing season, biennials complete their life cycle in two growing seasons, and perennials continue their life cycle for multiple years. The other options (A, B, C, and D) are not reliable indicators of plant types.

Question 11

Corn seeds have one cotyledon.

Accepted Answer

Corn is a monocotyledon, meaning it has one cotyledon in its seed.

Question 12

In terms of adaptation and diversity,what stage of the alternation of generations in flowering plants is analogous to the production of hundreds of fertilized eggs from a pair of wood frogs?
A)gametophyte stage
B)sporophyte stage
C)embryogenic stage
D)gametogentic stage

Accepted Answer

The gametophyte stage in flowering plants is analogous to the production of fertilized eggs from a pair of wood frogs, as it is the stage where the haploid gametes are produced and fused to form a diploid zygote, which then develops into a new sporophyte generation. Similarly, in wood frogs, the fertilized eggs develop into haploid tadpoles, which then grow into the diploid adult frog.

Question 13

Where would one find the leaf axillary bud?
A)in the internode of the stem
B)near the terminal bud
C)between the leaf petiole and the stem
D)between the leaf petiole and the leaf blade
E)between leaflets on a compound leaf

Accepted Answer

The leaf axillary bud is found in the axil, which is the angle between the leaf petiole and the stem. This location allows for the potential growth of a new branch or flower.

Question 14

What is true of eudicots but not monocots?
A)Eudicots have flower parts usually in multiples of 4 or 5.
B)Eudicots have true seed leaves but monocots do not.
C)Eudicots have vascular bundles scattered in their stems.
D)Eudicots have venation that is parallel to the leaf axis.
E)Eudicots have stomatal pores but monocots do not.

Accepted Answer

Eudicots typically have flower parts in multiples of 4 or 5, whereas monocots usually have flower parts in multiples of 3. This is a distinguishing characteristic between the two groups.

Question 15

Cell extension involves
A)loss of water.
B)low acidic condition.
C)enzymes that produce polysaccharides.
D)expansion of cellulose microfibrils.
E)water leaving the central vacuolE.

Accepted Answer

Cell extension involves the expansion of cellulose microfibrils in the cell wall, which allows the cell to elongate.

Question 16

Where is the primary meristem located?
A)dermal tissue
B)vascular tissue
C)woody stem
D)root and stem tips
E)stem tip only

Accepted Answer

The primary meristem is located in the root and stem tips. This is where new cells are created through cell division, allowing for growth in length. The dermal and vascular tissue, as well as woody stems, are not where the primary meristem is located. While the stem tip does contain the primary meristem, the root tip is also a location of primary meristem formation. Therefore, the best choice is D, as it is the only option that includes both root and stem tips.

Question 17

What is a feature of woody stems (in temperate regions)but not of herbaceous stems?
A)bud scale scars
B)internodes
C)nodes
D)axillary buds
E)shoot tip

Accepted Answer

Woody stems in temperate regions typically have bud scale scars, which are marks left behind when buds have fallen off the stem. Herbaceous stems do not have these scars.

Question 18

A vascular bundle
A)contains xylem and phloem.
B)is not found in leaves.
C)is usually scattered in the stem of a eudicot.
D)is on the outer surface of a root.
E)is very distinct in the apical meristem.

Accepted Answer

A vascular bundle contains both xylem and phloem, which transport water and nutrients throughout the plant. Vascular bundles are found in stems and roots of most plants, but not in leaves. In eudicots, the vascular bundles are arranged in a ring around the stem, while in monocots they are scattered throughout. The vascular bundle is not typically visible in the apical meristem.

Question 19

What do you predict would happen if flower growth became indeterminate?
A)The flowers would lose their distinct shape.
B)The flower size would be reduced.
C)The flowers would be enormous.
D)Pollen and seed production would cease.

Accepted Answer

If flower growth became indeterminate, the flowers would continue to grow as long as they had access to sufficient nutrients and resources. This would likely result in enormous flowers, as there would be no limit to their size.

Question 20

What do eudicots have that is not present in monocots?
A)parallel venation
B)leaf blade
C)netted venation
D)nodes
E)internodes

Accepted Answer

Eudicots have netted venation, while monocots have parallel venation.

Answer: A, B, C, D 
 Eudicots have all of these features, including netted venation, a distinct leaf blade, nodes, and internodes.

Quiz 27: An Introduction to Flowering Plant Form and Function

Experiments suggest that the KNOX protein is closely associated with what plant hormone during the induction of leaf primordia?

The mesophyll of the leaf

If a cross section of a eudicot herbaceous stem were compared with the cross section of its root,how would they differ?

Root hairs are specialized

A plant that you are studying has sluggish wound healing abilities as well as an inability to store significant food reserves.You would like to enhance these properties.If you could enhance the growth of a tissue to improve these properties,which tissue would you enhance?

What is the closest parallel in animal structural levels of complexity to the branches,buds,flowers,seeds,and fruits of flowering plants?

Scientists discovered that the primary reason leaves either develop as simple or compound is related to

Where in the eudicot plant root would you expect to find vascular tissue?

Predict what would occur if you removed the shoot apical meristem of a plant embryo.

How can one distinguish between annuals,biennials,and perennials?

Corn seeds have one cotyledon.

In terms of adaptation and diversity,what stage of the alternation of generations in flowering plants is analogous to the production of hundreds of fertilized eggs from a pair of wood frogs?

Where would one find the leaf axillary bud?

What is true of eudicots but not monocots?

Cell extension involves

Where is the primary meristem located?

What is a feature of woody stems (in temperate regions) but not of herbaceous stems?

A vascular bundle

What do you predict would happen if flower growth became indeterminate?

What do eudicots have that is not present in monocots?