1 SEM ACC W/RAVEN CARDED
1 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781265486297
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 fungus enters the plants usually through the stomata and from there it develops the fungal hyphae.

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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 of the following is not a function of proteins present in theplasma membrane?a. Proteins assist the passage of materials into the cell.b. Proteins interact with and recognize other cells.c. Proteins bind with specific hormones.d. Proteins carry out specific metabolic reactions.e. Proteins produce lipid molecules.
. 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.
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