Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 38, Problem 13TYU
SYNTHESIZE YOUR KNOWLEDGE
This colorized SEM shows pollen grains from six plant species. Explain how a pollen grain forms, how it functions, and how pollen grains contributed to the dominance of
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using the illustrations above arrange the following statements to explain the process of pollen formation in angiosperms "using the illustrations above, arrange the following statements to explain the process of pollen formation in angiosperms"
In a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg?
ovary → style → stigma
stigma → style → ovary
ovary→ stigma→ style
stigma→ ovary → style
Which statement below is correct regarding the formation of the endosperm in angiosperms?
O the endosperm is formed from the female gametophyte and is haploid
O a single sperm nucleus fertilizes the egg nucleus to become the diploid zygote
O a sperm nucleus forms both the zygote and the endosperm through double fertilization
O a second sperm nucleus fuses with the two polar nuclei of the egg sac
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Chapter 38 Solutions
Campbell Biology (11th Edition)
Ch. 38.1 - Distinguish between pollination and fertilization.Ch. 38.1 - Prob. 2CCCh. 38.1 - MAKE CONNECTIONS Does the life cycle of humans...Ch. 38.2 - What are three ways that flowering plants avoid...Ch. 38.2 - Prob. 2CCCh. 38.2 - Prob. 3CCCh. 38.3 - Compare traditional plant-breeding methods with...Ch. 38.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 38.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 38 - What changes occur to the four types of floral...
Ch. 38 - Prob. 38.2CRCh. 38 - Prob. 38.3CRCh. 38 - A fruit is (A) a mature ovary. (B) a mature ovule....Ch. 38 - Prob. 2TYUCh. 38 - Double fertilization means that (A) flowers must...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - A small flower with green petals is most likely...Ch. 38 - The black dots that cover strawberries are...Ch. 38 - DRAW IT Draw and label the parts of a flower.Ch. 38 - Prob. 9TYUCh. 38 - Prob. 10TYUCh. 38 - SCIENCE, TECHNOLOGY, AND SOCIETY Humans have...Ch. 38 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 38 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
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- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forwardFigure 14.26 If a flower lacked a megasporangium, what type of gamete would it not be able to form? If it lacked a microsporangium, what type of gamete would not form?arrow_forwardPlease explain how you can tell if this plant is a Monocot or Eudicot by describing the differences in their flowers, seeds, roots, stems, and leaves.arrow_forward
- Answer the following question: What is meant by “double fertilization”? What features of seeds and fruits have enabled angiosperms to become so widespread?arrow_forwardAnswer the following questions: What advantages do flowers give angiosperms over gymnosperms? Describe a probable method for dispersal of each fruit (apple, banana, and orange). What are the major parts (and their functions) of a sunflower?arrow_forwardChrysopogon aciculatus is placed under microscope. When crushed, the seed is visible. Apparently, this species of plant is angiosperm. So how do I draw the diagram of the seed(?) for Chrysopogon aciculatus? Do i have to draw just the seed with a fruit coating or do i have to draw the stamen/ovary/stigma etc of Chrysopogon aciculatus' floret?. Attached is a picture of supposedly an angiosperm of Chrysopogon aciculatus , but how do i draw the seed diagram(?)arrow_forward
- Angiosperms rely on a number of control pathways that govern when to produce reproductive structures. Briefly describe any one of these pathways, including the processes, structures and/or molecules involved.arrow_forwardA) How does a seed differ from a spore? Group of answer choices A seed must start growing right away, while a spore can lie dormant through adverse environmental conditions A seed has a protective coating, while a spore does not A spore has a protective coating, while a seed does not A spore contains an embryo, while a seed contains just a single cell A seed contains a food reserve, while a spore does not B) Angiosperms are the most successful plants on Earth. One reason for this is that Group of answer choices They rely solely on wind to disperse their seeds They rely solely on wind for pollination They lack vascular tissues Pollination of angiosperms is more targeted They are unique among plants in that they do not have a haplodiplontic life cyclearrow_forwardCorn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate (single groove) pollen. Given this information, which term best characterizes corn?arrow_forward
- Match the definition with the proper terms Separate staminate and pistillate flowers on a plant Temporal separation of staminate and pistillate floral development within a plant The immediate product of male meiosis in an angiosperm The land plant lineage with the dominant gametophyte generation One of the two primary lineages of seed plants The class of floral organ mutant that results in a Carpel-Stamen-Stamen-Carpel arrangement (beginning with whorl 1). A plant that flowers if uninterrupted darkness is less than the critical photoperiod The central repressor of flowering (What gene is it?) [Choose ] [Choose ] [Choose ] [Choose ] [Choose ] [Choose ] [Choose ] [Choose ]arrow_forwardAnswer the following questions: What is meant by “double fertilization”? What features of seeds and fruits have enabled angiosperms to become so widespread? What are the similarities and differences between cones and flowers?arrow_forwardWhat is the mechanism of pollination in gymnosperms and how the size and presence of wings on each grain help affect pollination. Which structures are haploid and which are diploid? Are pollen grains the same as spores? Why would anybody care about the structures of conifer pollenarrow_forward
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