Campbell Biology - With Access (Looseleaf) (Custom)
10th Edition
ISBN: 9781269590068
Author: Reece
Publisher: PEARSON
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Chapter 31, Problem 5TYU
Summary Introduction
To review: Interpretation of data regarding the “impact of Curvularia on the heat tolerance of the grass Dichanthelium lanuginosum”.
Introduction:
Dichanthelium lanuginosum is a grass, which “lives in hot soils and houses fungi of the genus Curvularia as endophytes”. Tests have been performed to check the “impact of Curvularia on the heat tolerance of this grass”. Plants were grown with and without Curvularia endophytes at various temperatures and accordingly, the plant mass and production of new shoots in the plants are measured.
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a. Choose four (4) characteristics best describe an Equisetum
Wide and flattened achlorophyllous leaves
Commonly found in damp and marsh environment
Deep root system with rhizomes that produce many terrestrial stems.
Photosynthetic stem
Heterosporous, whereas microspore produce male and megaspore produce female gametes
Strictly reproduce sexually
Shoots are two types, fertile and sterile
Describe in your own words the difference between a sporophyte and a gametophyte.
PLEASE ANSWER NUMBER 1,2,3, and 4 QUESTIONS: (with brief explanation only)
1. A difference between seedless vascular plants and plants with seeds is that?
A. the gametophyte generation is conspicuous in the seedless plants, whereas the sporophyte is dominant in the seeded plants.
B. the spore is the agent of dispersal in the first, whereas the seed functions in dispersal in the second.
C. the gametophyte is photoautotrophic in seedless plants but dependent on the sporophyte generation in the other group.
D. the embryo is unprotected in the seedless plants but retained within the female reproductive structure in the other group.
2. Biologist hypothesize that the first land plants had a low, sprawling growth habitat. Which of the following is part of the logic behind that theory?
A. The low sprawling growth gave them greater surface area exposed to light for photosynthesis.
B. This was prior to plants’ development of adaptations to defend themselves from predators, so by growing…
Chapter 31 Solutions
Campbell Biology - With Access (Looseleaf) (Custom)
Ch. 31.1 - Prob. 1CCCh. 31.1 - Prob. 2CCCh. 31.1 - MAKE CONNECTIONS Review Figure 10.4 and Figure...Ch. 31.2 - Prob. 1CCCh. 31.2 - WHAT IF? Suppose that you sample the DNA of two...Ch. 31.3 - Why are fungi classified as opisthokonts despite...Ch. 31.3 - Prob. 2CCCh. 31.3 - Prob. 3CCCh. 31.4 - Prob. 1CCCh. 31.4 - Give examples of how form fits function in...
Ch. 31.4 - WHAT IF? Suppose that the mutation of an...Ch. 31.5 - What are some of the benefits that liehen algae...Ch. 31.5 - Prob. 2CCCh. 31.5 - WHAT IF? How might life on Earth differ from what...Ch. 31 - How does the morphofogy of multicellular fungi...Ch. 31 - Prob. 31.2CRCh. 31 - Did multicellularity originate independently in...Ch. 31 - Prob. 31.4CRCh. 31 - How are furigi important as decomposers,...Ch. 31 - Prob. 1TYUCh. 31 - Prob. 2TYUCh. 31 - Prob. 3TYUCh. 31 - Prob. 4TYUCh. 31 - Prob. 5TYUCh. 31 - Prob. 6TYUCh. 31 - WRITE ABOUT A THEME: ORGANIZATION As you read in...Ch. 31 - SYNTHESIZE VOUR KNOWLEDGE This wasp is the...
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- Figure 25.24 Which of the following statements about the fern life cycle is false? Sporangia produce haploid spores. The sporophyte grows from a gametophyte The sporophyte is diploid and the gametophyte is haploid. Sporangia form on the underside of the gametophyte.arrow_forwardStem of sub-merged hydrophytes is soft and weak because of (a) the absence of phloem (b) the absence of stomata (c) the absence of xylem (d) feebly developed supporting tissue and xylemarrow_forwardPrimary phloem develops from: A. lateral meristem B. protoderm C. extrastelar cambium D. provascular tissuearrow_forward
- Plants Are Adapted to Life on Land Plants developed from a group of green algae (members of Kingdom Protista) called the charophytes. Like these green algae, plants have a life cycle called the alternation of generations. Draw a diagram of the basic life cycle of a plant, showing the alternation of the sporophyte and gametophyte generations. Unlike green algae that live in water, plants live on land. Being surrounded by air means that they risk losing too much water through evaporation and dying from dehydration. Name 3 characteristics of plants that help them conserve water and protect them from drying.arrow_forwardWhich of the following comparisons between the moss life cycle and fern life cycle are correct? A) Mosses have flagellated sperm that need water to reach the female gamete, while the sperm of ferns are unflagellated and are not dependent on water.B) The sporophyte generation is smaller than the gametophyte generation in mosses, but the sporophyte generation is much larger than the gametophyte generation in ferns.C) The spores are produced in capsules on stalks in mosses but in small structures called sori on the underside of leaves in ferns.D) The gametes are produced in gametangia in mosses but in specialized structures on the underside of leaves in ferns.E) Both kinds of plants depend on wind for dispersal of spores.arrow_forwardThe structure of the fern sporangium shown promotes spore dispersal by a ‘catapult’ mechanism. What is the driving force involved? A. Increased pressure within the sporangium B. Opening of the sporangium mouth C. Elastic rebound D. Water evaporation from the annulusarrow_forward
- . SCIENTIFIC INQUIRY Cotton plants wilt within a few hoursof flooding of their roots. The flooding leads to low-oxygenconditions, increases in cytosolic Ca2+concentration, anddecreases in cytosolic pH. Suggest a hypothesis to explain howflooding leads to wilting.arrow_forwardByrophytes are usually found in areas that are very wet or damp at least part of the year. Which of the following statements describes characteristics of byrophytes that make them dependent on water? State all that numbers that apply. 1. They have a dominant gametophyte phase. 2. They have swimming sperm that need water so they can swim to fertilize the eggs of other nearby plants. 3. They do not have lignin-stiffened vascular tissue or roots to effectively distribute water throughout the plant.arrow_forwardPhloem tissue is found in ? Plants Insects Mammals All of abovearrow_forward
- According to figure 20.22, were young leaves with endophytessignificantly less damaged than those without endophytes? Explainhow you knowarrow_forwardIt must be difficult for secondary growth to arise by evolution. How many times has it evolved in the 420 million years that vascular plants have been in existence? How many of those have become extinct?arrow_forwardWhich 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 seedarrow_forward
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