2 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781264439218
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 38, Problem 2U
Summary Introduction
Introduction:
The fungal pathogens are the group of pathogens which are able to cause diseases in the living organisms. The pathogenic fungi are usually microorganisms. The
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The cell walls of fungi are strengthened by chitin, a strong but flexible polysaccharide. Which of these statements about the function of chitin in fungal cell wall is TRUE?
a.
Chitin-rich walls of fungi improves feeding by facilitated diffusion.
b.
The movement of water and nutrients into fungal cells creates pressure that could cause them to burst if they were not surrounded by a chitin-rich cell wall.
c.
The chitin present in fungal cell wall does not impart any advantage in terms of nutrient acquisition from the environment.
d.
Chitinous tubular cell walls confers motility to multicellular fungi.
. Which statement about mycorrhizae is FALSE?
a. They are symbiotic associations between a fungus and a plant root.
b. They increase the uptake of nutrient minerals by the plant.
c. Arbuscular mycorrhizae are extracellular.
d. Endomycorrhizae are intracellular.
e. Members of the Glomeromycota may be involved.
Mycelium is a mass of conidia.
A. True
B. False
Chapter 38 Solutions
2 SEM ACC W/RAVEN CARDED
Ch. 38.1 - Identify the compounds produced by the epidermis...Ch. 38.1 - Prob. 2LOCh. 38.1 - Prob. 3LOCh. 38.2 - Describe the role of secondary metabolites in...Ch. 38.2 - Prob. 2LOCh. 38.2 - Prob. 3LOCh. 38.3 - Prob. 1LOCh. 38.3 - Prob. 2LOCh. 38.4 - Prob. 1LOCh. 38.4 - Prob. 2LO
Ch. 38.4 - Prob. 3LOCh. 38 - Prob. 1IQCh. 38 - Nonnative invasive species are often a threat to...Ch. 38 - Prob. 2UCh. 38 - Prob. 3UCh. 38 - Prob. 4UCh. 38 - Prob. 5UCh. 38 - In response to wounding, a tomato plant first...Ch. 38 - When a cell undergoes a hypersensitive response,...Ch. 38 - The wound response products that bind to digestive...Ch. 38 - If a plant has been attacked by a pathogen, then...Ch. 38 - Prob. 1ACh. 38 - Both plant and animal immune systems can a....Ch. 38 - Your friend informs you that it is highly likely...Ch. 38 - Prob. 4ACh. 38 - You decide to plant a garden with a beautiful...Ch. 38 - Prob. 6ACh. 38 - Prob. 1SCh. 38 - Parasitoid wasps seem like an effective method to...Ch. 38 - Prob. 3S
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- The functional significance of the extensive network of hyphae in a mycelium isa. it allows many cells to take part in reproduction.b. it provides a massive surface area to absorb nutrients.c. it defends the individual against individual cell loss.d. it increases resistance to infection by soil bacteria.arrow_forwardA pathogen would most accurately be described as aa. parasite.b. commensal.c. saprobe.d. symbiont.arrow_forwardA fungal hypha that contains two genetically different nuclei would be classified asa. monokaryotic.b. bikaryotic.c. homokaryotic.d. heterokaryoticarrow_forward
- Which of the following cell wall layer gets soft and dissolved when a fruit, like a mango, ripens? a. Tertiary walls b. Middle Lamella c. plasmodesmata d. secondary wall e. primary wallarrow_forwardFungal hyphae form a mesh of tissue that infiltrates food sources and absorbs nutrients. This tissue structure is called __________ . A. Mycelium B. Fungal roots C. Gametangia D. Zygospores E. None of thesearrow_forwardThe wall dividing individual cells in a fungal filament is called a a. thallus b. hypha c. mycelium d. septumarrow_forward
- The mycelium of a multicelled fungus is a mesh of filaments, each called a_______ . a. septa b. hypha c. sporearrow_forwardWhen fungal hyphae meet in sexual mating, they first fuse their cytoplasms, and then later undergo a. Plasmogamy b. Karyogamy c. Cytogamy d. Ribosogamy e. Chomosogamyarrow_forwardWhich of the following cell types remain alive in matureplant tissue?a. sclerenchyma c. tracheidsb. sieve elements d. vessel elementsarrow_forward
- Describe a plant leaf that has survived fungal pathogen invasion via hypersensitive response (HR) mechanism. Explain the processes that happened at cellular level.arrow_forwardWhich of the following attachment mechanisms Streptococcus sobrinus uses during its interactions with complementary receptors in the acquired pellicle? a. Amylase. b. Sialic acid residues. c. Glucan binding proteins. d. Statherin.arrow_forwardFollowing infection with a pathogen, one response is to spread an alarm signal to increase defenses and antimicrobial compounds throughout the plant body and the network of plants connected by mycorrhizae. Which chemical spread this alarm signal? Select one: a. Salicylic acid b. Jasmonic acid c. Indole acetic acid d. Gibberellic acid e. Abscisic acidarrow_forward
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