Question 1

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 2

Why do oils form a significant part of the nutritional reserves in many seeds?

Accepted Answer

A) Oils help keep the embryo hydrated,allowing the seed to survive in dry habitats. 
B) The oils reduce the density of the seed and allow for water dispersal. 
C) Oils contain more mineral nutrients than carbohydrates. 
D) Oils store twice as much energy as an equivalent mass of starch. 
E) Hormones diffuse more quickly through oils. 
A) Oils help keep the embryo hydrated,allowing the seed to survive in dry habitats. 
B) The oils reduce the density of the seed and allow for water dispersal. 
C) Oils contain more mineral nutrients than carbohydrates. 
D) Oils store twice as much energy as an equivalent mass of starch. 
E) Hormones diffuse more quickly through oils.

Question 3

Which of the following statements about flowering plants is TRUE?

Accepted Answer

A) A short-day plant requires nights longer than a certain critical period to trigger flowering. 
B) A long-day plant requires nights shorter than a certain critical period to inhibit flowering. 
C) A short-day plant requires daylight of short wavelengths. 
D) A long-day plant requires long wavelengths during the night. 
E) A long-day plant requires long days alternating with short days. 
A) A short-day plant requires nights longer than a certain critical period to trigger flowering. 
B) A long-day plant requires nights shorter than a certain critical period to inhibit flowering. 
C) A short-day plant requires daylight of short wavelengths. 
D) A long-day plant requires long wavelengths during the night. 
E) A long-day plant requires long days alternating with short days.

Question 4

Pollination begins when pollen is transferred from the ________ to the ________ of a flower.

Accepted Answer

A) anther; ovary 
B) anther; receptacle 
C) anther; stigma 
D) stigma; embryo sac 
E) synergid; egg 
A) anther; ovary 
B) anther; receptacle 
C) anther; stigma 
D) stigma; embryo sac 
E) synergid; egg

Question 5

Competence means that a plant is ________,while determination means that a plant tissue ________.The acquisition of flowering competence is an example of a ________.

Accepted Answer

A) capable of responding to signals that trigger a fate change; remains capable of adopting more than one possible developmental fate; phaseolus 
B) unresponsive to signals that trigger a fate change; is committed to a specific developmental fate; fate change 
C) in the process of responding to signals that trigger a fate change; was driven to adopt an abnormal developmental fate by transgene expression; flowerization 
D) capable of responding to signals that trigger a fate change; is committed to a specific developmental fate; phase change 
A) capable of responding to signals that trigger a fate change; remains capable of adopting more than one possible developmental fate; phaseolus 
B) unresponsive to signals that trigger a fate change; is committed to a specific developmental fate; fate change 
C) in the process of responding to signals that trigger a fate change; was driven to adopt an abnormal developmental fate by transgene expression; flowerization 
D) capable of responding to signals that trigger a fate change; is committed to a specific developmental fate; phase change

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. 
E) Seeds take more than one season 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. 
E) Seeds take more than one season to germinate.

Exam 40: Plant Reproduction

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

Why do oils form a significant part of the nutritional reserves in many seeds?

Which of the following statements about flowering plants is TRUE?

Pollination begins when pollen is transferred from the ________ to the ________ of a flower.

Competence means that a plant is ________,while determination means that a plant tissue ________.The acquisition of flowering competence is an example of a ________.

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?

The Science of Biology

The Nature of Molecules and the Properties of Water

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes, mapping, and the Meiosisinheritance Connection

Dna: the Genetic Material

Genes and How They Work

Control of Gene Expression

Biotechnology

Genomics

Cellular Mechanisms of Development

Genes Within Populations

The Evidence for Evolution

The Origin of Species

Systematics,phylogenies,and Comparative Biology

Genome Evolution

The Origin and Diversity of Life

Viruses

Prokaryotes

Protists

Seedless Plants

Seed Plants

Fungi

Animal Diversity and the Evolution of Body Plans

Protostomes

Deuterostomes

Plant Form

Transport in Plants

Plant Nutrition and Soils

Plant Defense Responses

Sensory Systems in Plants

The Animal Body and Principles of Regulation

The Nervous System

Sensory Systems

The Endocrine System

The Musculoskeletal System

The Digestive System

The Respiratory System

The Circulatory System

Osmotic Regulation and the Urinary System

The Immune System

The Reproductive System

Animal Development

Behavioral Biology

Ecology of Individuals and Populations

Community Ecology

Dynamics of Ecosystems

The Biosphere and Human Impacts

Conservation Biology

Filters

Pollination begins when pollen is transferred from the to the of a flower.

Competence means that a plant is ,while determination means that a plant tissue .The acquisition of flowering competence is an example of a .