39. What role does chitin play in the construdtion of the cel walls of fungi a)
ID: 3164949 • Letter: 3
Question
39. What role does chitin play in the construdtion of the cel walls of fungi a) Protection from the gravitational forces of the weight of the surrounding substrate. b) Protection from predators c) Structural support ond rigidity in the terrestrial habitat. d) Protection from the stresses of osmotic shifts e) None of the above. 40. In which part of the body is infection by Enlamoeba histolytica most dangerou? b) mouth ' bod b) stomach c) lungs d) intestines e) colon 41. In the plasmodial slime mold Physarum polycephalum, the zygote results from a) fusion of a haploid armoeboid cell with a haploid flegellated cell. b) fusion of two haploid amoeboid cells. c) fusion of a hoploid amoeboid cell with a haploid spore d) fusion of two haploid flagelated cells e) fusion of two haploid spores. 42. Arrange the following from largest to smallest, assuming that they all come from the same fungus basidiocorp basidiunm 2. 3. basidiospore 4. mycelium 5. gll o) 23 c) 5+143 2 d) 4?1?5?2?3 e) 513+2+4 43. Among sac fungi, which of these correctly distingushes ascospores from conidio from a) Ascospores are diploid, whereas conidia are haploid. Ascospores have undergone genetic recombination via meiosis during their development, whereos underge geronida ore haple e) Ascospores are produced only by meiosis, whereas conidia are produced only by mitosis d) Ascospores are larger, whereas conidia are smaller. e) Ascospores will germinate into haploid hyphae, whereos conidia will germinate into diploid conidia have not. condiahave hyphoe. 44. Of all taxa termed "algae" (e.g. Phaeophyta or "brown olgoe", Rhodophyta or "red algae", as well as the various "green algoe"l, which of the following characteristics is the ONLY one that all share that has arisen due to common ancestry? a) Chlorophyll a b) Phragmoplast c] Origin of mitochondria via endosymbiosis d] Chlorophyll b.Explanation / Answer
39) The correct option is c. Structural support and rigidity in the terrestrial habitat.
Chitin of the cell wall plays a prominent role in the structure and behavior of fungi. The chitin helps in rigidity and structural support to the thin cells of the fungus.
40) The correct option is d. intestines.
Amebiasis is a parasitic infection of the intestines, which is caused by the protozoan Entamoeba histolytica.
41) The correct option is b. fusion of two haploid amoeboid cells.
The fusion of two haploid amoeboid cells results in a diploid zygote, which transforms into a developing plasmodium by nuclear division in the absence of the process of cytokinesis.
42) The correct option is d. 4 - 1 - 5 - 2 - 3.
The following is order from largest to smallest, assuming that they all come from the same fungus: D) mycelium, basidiocarp, gill, basidium, basidiospore.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.