Question 1

What is the term for the single cotyledon within the kernels of cereal grains?

Accepted Answer

A) aleurone 
B) hypocotyl 
C) dicot 
D) scutellum 
A) aleurone 
B) hypocotyl 
C) dicot 
D) scutellum

Question 2

At the Beautiful Mutants Flower Shop, a variety of unique mutant plants are sold.What would be the best flower to give to a friend who is allergic to pollen?

Accepted Answer

A) "Superhunk" -- a plant with a mutation in the class A genes. 
B) "Beautiful Innocence" -- a plant with a mutation in the class C genes. 
C) "Clockface" -- a plant with a mutation in the CYCLOIDEA gene. 
D) "Suspense" -- a plant with a mutation in the LEAFY gene. 
A) "Superhunk" -- a plant with a mutation in the class A genes. 
B) "Beautiful Innocence" -- a plant with a mutation in the class C genes. 
C) "Clockface" -- a plant with a mutation in the CYCLOIDEA gene. 
D) "Suspense" -- a plant with a mutation in the LEAFY gene.

Question 3

Which of the following statements about plant embryo development is correct?

Accepted Answer

A) The suspensor forms from the shoot apical meristem before development of the root apical meristem. 
B) The development of the shoot and root apical meristems is controlled independently. 
C) The plant hormone abscisic acid is important in the development of the shoot-root axis. 
D) The protoderm establishes the procambium tissue in the young plant embryo. 
A) The suspensor forms from the shoot apical meristem before development of the root apical meristem. 
B) The development of the shoot and root apical meristems is controlled independently. 
C) The plant hormone abscisic acid is important in the development of the shoot-root axis. 
D) The protoderm establishes the procambium tissue in the young plant embryo.

Question 4

Your botany instructor likes to tell nerdy jokes, like this: "I wanted to buy a pink Toyota Corolla, but the dealer only had a green Calyx available." Impress your instructor with a clever response to this joke.

Accepted Answer

A) "Oh, I would have chosen the blue Receptacle." 
B) "Those are great cars, but the pinecone tires don't roll very well." 
C) "Me too! But I could only afford the yellow Androecium." 
D) "The factory must have run out of class A genes." 
A) "Oh, I would have chosen the blue Receptacle." 
B) "Those are great cars, but the pinecone tires don't roll very well." 
C) "Me too! But I could only afford the yellow Androecium." 
D) "The factory must have run out of class A genes."

Question 5

Many plants devote significant resources to growing colorful, fragrant flowers filled with nectar.What does this illustrate the importance of?

Accepted Answer

A) nutrient storage in seeds 
B) long-term nutrient storage in perennial plants 
C) outcrossing 
D) chemical signaling among plants 
A) nutrient storage in seeds 
B) long-term nutrient storage in perennial plants 
C) outcrossing 
D) chemical signaling among plants

Question 6

Your friend has never gardened before.When none of the seeds he planted germinate, he asks you to suggest why.Which is the best explanation of what occurred?

Accepted Answer

A) The monocot seeds he used were only able to produce a single cotyledon each. 
B) The seeds were planted too deeply and used up their reserves before reaching the surface and sunlight. 
C) The suspensor failed to develop into an embryo within each seed. 
D) All seeds require fire in order to germinate. 
A) The monocot seeds he used were only able to produce a single cotyledon each. 
B) The seeds were planted too deeply and used up their reserves before reaching the surface and sunlight. 
C) The suspensor failed to develop into an embryo within each seed. 
D) All seeds require fire in order to germinate.

Question 7

Germination requires the use of metabolic reserves in the seed.Which of these compartments contains starch used to fuel early seedling growth?

Accepted Answer

A) amyloplasts 
B) protoplasts 
C) chloroplasts 
D) chromoplasts 
A) amyloplasts 
B) protoplasts 
C) chloroplasts 
D) chromoplasts

Question 8

What is the portion of a dicot seedling below the cotyledons called?

Accepted Answer

A) internode 
B) epicotyl 
C) hypocotyl 
D) plumule 
A) internode 
B) epicotyl 
C) hypocotyl 
D) plumule

Question 9

Your friend examines an ivy vine growing on the side of a campus building and says, "Look - some of the branches on this plant have a different morphology.The leaf shapes and patterning are different, and there are flowers on some branches but not others.There must have been a mutation!" You respond,

Accepted Answer

A) "I think you're right.Maybe there was a mutation in the LEAFY (LFY) gene, and the loss of LFY has promoted flowering and had pleiotropic effects on leaf morphology." 
B) "No, those branches have just undergone phase change.Now they're in the adult form, and have become competent to respond to flowering signals." 
C) "I think you're right.Maybe the embryonic flower (emf) gene is being overexpressed, and that's causing flowers to form." 
D) "No, those morphological changes are just evidence that this plant's environment has changed during its lifetime." 
A) "I think you're right.Maybe there was a mutation in the LEAFY (LFY) gene, and the loss of LFY has promoted flowering and had pleiotropic effects on leaf morphology." 
B) "No, those branches have just undergone phase change.Now they're in the adult form, and have become competent to respond to flowering signals." 
C) "I think you're right.Maybe the embryonic flower (emf) gene is being overexpressed, and that's causing flowers to form." 
D) "No, those morphological changes are just evidence that this plant's environment has changed during its lifetime."

Question 10

Browsing through a seed catalog, you are tempted to order several beautiful floral varieties, but worry that you will spend too much on your garden every year.Which plants should you buy?

Accepted Answer

A) herbaceous perennials, which will come back year after year 
B) woody perennials, which require little space and few resources 
C) annuals, which will come back year after year 
D) biennials, which will last twenty years before they die 
A) herbaceous perennials, which will come back year after year 
B) woody perennials, which require little space and few resources 
C) annuals, which will come back year after year 
D) biennials, which will last twenty years before they die

Exam 41: Plant Reproduction

What is the term for the single cotyledon within the kernels of cereal grains?

At the Beautiful Mutants Flower Shop, a variety of unique mutant plants are sold.What would be the best flower to give to a friend who is allergic to pollen?

Which of the following statements about plant embryo development is correct?

Your botany instructor likes to tell nerdy jokes, like this: "I wanted to buy a pink Toyota Corolla, but the dealer only had a green Calyx available." Impress your instructor with a clever response to this joke.

Many plants devote significant resources to growing colorful, fragrant flowers filled with nectar.What does this illustrate the importance of?

Your friend has never gardened before.When none of the seeds he planted germinate, he asks you to suggest why.Which is the best explanation of what occurred?

Germination requires the use of metabolic reserves in the seed.Which of these compartments contains starch used to fuel early seedling growth?

What is the portion of a dicot seedling below the cotyledons called?

Browsing through a seed catalog, you are tempted to order several beautiful floral varieties, but worry that you will spend too much on your garden every year.Which plants should you buy?

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