114年 - 114 臺灣綜合大學系統_學士班轉學生考試試題：普通植物學#137945

1. Describe in detail the structural components of the plant cell wall and its main functions withe; plant cell and the entire plant body. Compare the differences between the primary and secondary cell walls. (10 point)

2. Compare the main structural differences between monocot and dicot plants in their roots, stems, and es. Explain how these structural differences influence their growth patterns and ad

3. Plant hormones play crucial roles in plant growth, development, and responses to the environment. ose at least three important plant hormones (e.g., auxin, cytokinin, gibberellin, ethy! describe their main functions and specific roles in the plant life cycle in detail.

4. In some higher plants, the C4 photosynthetic pathway has evolved, exhibiting higher photosynthetic efficiency under specific environmental condions compared to plants solely possessing the C3 pathway. Please elaborate on:(A) The key biochemical steps of the C4 photosynthetic pathway and its spatialialialialialali separation in cells. (B) How the C4 pathway overcomes the limitation imposed by photorespiration onl photosynthetic rate in the C3 pathway. (C) In which typical ecological environments do have a greater competitive advantage, and explain their physiological basis. (15 point)

5.Genetic variation is the basis of evolution. Discuss the main mechanisms that generate genetic variation in plants, including mutation, genetic recombination, and chromosomal variation. Explain how genetic variation plays a role in plant evolution. (15 point)

6. Plants have various types of interactions with other organisms. Provide examples of common alistic, parasitic, and competive relationships between plants and other organisms, and explain these relationships affect plant survival and evolution. (15 point)

7. Please briefly explain the meaning of the following abstract and describe what your next step would be if you were the author?
"Aluminum (Al) toxicity in acid soils poses a sicant threat to rice, which exhibits highly complex genetic mechanisms for both extemal detoxification and internal tolerance among cereal crops. several genes involved Al tolerance have been identified, the molecular mechar underlying Al tolerance in rice remain to be fully explored. Here, we functionally characterized the gibberellin-stimulated transcription gene OsGASRI, which encodes a small cysteine-rich peptide localized to the nucleus and cytoplasm and plays a significant role in AI tolerance in rice. The expression ASR1 is rapidly up-regulated by Al in rice root tips but not in the shoots. Its expression requlated by the central regulator Aluminum Resistance Transcription Factor 1 (ART), indicating that OsGASR1 functions as a novel gene in rice Al resistance independent of ART1. Knockout of OsGASR1 reduced root length but did not affect Al tolerance in rice, whereas overexpression of OsGASR1 enhanced tolerance without affecting Al distribution and accumulation and promoted the accu reactive oxygen species (ROS) in the root tips. RNA-seg analysis revealed that overexpression of OsGASR1 uprequlated the expression of genes associated with cell wall modification, oxidative stress, AI tolerance. Collectively, these findings suggest that OsGASR1 is involved in Al tole dently of ART1, and the up-regulation of this gene is necessary for rice Al tolerance. i. 2025 Jan:350:112294. doi: 10.1016/j plantsci.2024.112294. Epub 2024 Oct 15.)