BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 27, Problem 6SA
Summary Introduction
Introduction:
Flowers are the reproductive structures of the plants. The different parts of the flower comprises the male and female reproductive structures. The flower that bears both female and male parts is called a bisexual flower.
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Match the terms appropriately. ___ ovule a. gamete-producing body ___ cuticle b. spore-producing body ___ gametophyte c. where eggs form ___ sporophyte d. underground stem ___ fruit e. mature ovary ___ endosperm f. nutritive tissue in seed ___ rhizome g. where fern spores form ___ sorus h. secreted waxy layer
The seed coat forms from the______ . a. integuments c. endosperm b. coleoptile d. sepals
Which of the following incorrectly pairs a sporophyte embryo with its food source? *
A. Moss embryo-archegonium and gametophyte plant
B. Fern embryo-female sporophyte surrounding archegonium
C. Pine embryo-female gametophyte tissue in nucellus
D. Corn embryo-3N endosperm tissue in seed
Chapter 27 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 27 - An animal pollinator may be rewarded by _______...Ch. 27 - The arrival of pollen grains on a receptive stigma...Ch. 27 - Prob. 3SACh. 27 - In flowers, the structures that produce male...Ch. 27 - Seeds are mature _______ ; fruits are...Ch. 27 - Prob. 6SACh. 27 - The three main parts of a typical mature eudicot...Ch. 27 - Prob. 8SACh. 27 - Prob. 9SACh. 27 - Prob. 10SA
Ch. 27 - Prob. 11SACh. 27 - Prob. 12SACh. 27 - Prob. 13SACh. 27 - Which of the following statements is false? a....Ch. 27 - Match the observation with the main hormones.. ___...Ch. 27 - The oat coleoptiles on the left have been...Ch. 27 - Is the seedling shown on the right a monocot or...Ch. 27 - Prob. 3CTCh. 27 - Prob. 4CT
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- The gametophytes of ferns_____ . a. are photosynthetic c. are diploid b. produce spores d. are dependent on the in sori sporophyte for nutritionarrow_forwardWhich of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.arrow_forwardIn 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_forward
- Club mosses, horsetails, and ferns are_______ plants. a. multicelled aquatic c. seedless vascular b. nonvascular seed d. seed-bearing vasculararrow_forwardThe sporophyte of nonvascular plants A. possesses anthers and archegonia O B. produces spores C. is the dominant stage of their alternation of generations D. produces non-motile sperm cells E. is dependent on wind pollinationarrow_forwardMost gymnosperm seeds _______________. Select one: a. have attached wings to aid in dispersal b. grow as groups in thick pouches inside of woody cones c. have very little viability d. possess no seed coat e. none of the above answers f. have triploid endosperm, the product of double fertilizationarrow_forward
- Meiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d. sporophytesarrow_forwardThe alternation of generations life cycle applies to gymosperms in that: A. the gametophyte stage is reduced B. the sporophyte stage is reduced C. the gametes are produced via meiosis D. the spores are produced via meiosisarrow_forwardThe following traits are shared by some members of the ANA Grade and Magnoliids, EXCEPT: a. monosulcate pollen b. one seed cotyledon c. spiral arrangement of perianth d. absence of vessel in wood e. numerous, free carpels (apocarpous)arrow_forward
- No need to explain why 1. Which of the following is not true of the gymnosperms? * A. Less dependent on water for fertilization B. Heterosporous C. Seed is not enclosed within an ovary D. Nonvascular plant 2. Which of the following phyla of the gymnosperm is the most advanced? * A. Ginkgophyta B. Gnetophyta C. Coniferophyta D. Cycadophyta 3. In which of the following features does angiosperm resemble a gymnosperm? * A. Mode of fertilization B. Presence of ovules C. Nature of endosperm D. Presence of vessel 4. How would you differentiate the phloem of a gymnosperm from an angiosperm? * A. having a no companion cells B. having no sieve tubes C. having no schlerenchyma D. having parenchyma 5. Which of the following does not function as support of angiosperms? * A. tracheids B. fiber C. ligninarrow_forwardFerns differ from mosses in having: O a. There is no separate gametophyte and sporophyte (each plant changes from sexual to asexual). O b. The gametophyte is dioecious (single sex). Oc. The sperm are transported by wind. O d. Afunction of the roots is to absorb water from the soil. O e. Dispersal is no longer by spores.arrow_forward1. Which group bears stomata only in the sporophyte generation? a. Bryophyta b. Chrysophyta c. Marchantiophyta d. Anthocerophyta 2. Which is TRUE about bryophytes? a. Not all bryophytes have conspicuous gametophyte generation. b. The gametophyte bears the sporangium where the spores are located. c. The sporophyte stage is dependent on the gametophyte for nutrition. d. All bryophytes exhibit a peristome which aids in nutrient transfer. 3. Why is Sphagnum widely used as a growth medium in horticulture? a. Because it prevents nutrient deficiency due to its decay-resistant phenol-rich cell wall. b. Because it prevents salinity stress due to its high water-holding capacity. c. Because it prevents plasmolysis due to its high water-holding capacity. d. Because it prevents seed rot due to the antiseptic property of its phenol-rich cell wall.arrow_forward
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