Concept explainers
To review:
The experimental design to determine the photosynthetic strategy followed by the new species of succulent plant, which has stomata open during the daytime under the mild spring environment.
Introduction:
The process of photosynthesis is categorized on the basis of external environmental conditions into different types. C3, C4 and CAM photosynthetic pathways are the modes followed by the plants to make sugars from CO2. Crassulacean acid
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Biology: The Dynamic Science (MindTap Course List)
- You have been chosen as the lead student gardener for the CSUMB Future Farmers of America Club (FFAC). Your club is looking to you and your Bio211 plant experience to guide them. You arrive at the new FFAC garden plots where your club mates show you their cherry tree that they've been having trouble with. Originally, its leave would change color and fall off the tree, as expected, in the autumn. However, more recently the leaves started changing color and falling off in the spring time. Which hormone does the tree likely have in excess and why?arrow_forwardWhich of the following explains why pea plants in high soil nitrogen conditions have so few rhizobial nodules on their roots? When there is already high soil nitrogen there is a very large cost to having rhizobial nodules. The rhizobia bacteria in the nodules fix nitrogen when there isn't enough in the soil, so when there is already high soil nitrogen there is no advantage for the pea plant to expend the extra energy housing the rhizobia. The rhizobia bacteria in the nodules use nitrogen when there isn't enough in the soil, so in conditions of high soil nitrogen the plant tries to exclude the rhizobia to keep the nitrogen for itself. When there is already high soil nitrogen there is no benefit to the plant to having rhizobial nodules, which can rob the plant of the high nitrogen supplies so that the rhizobia bacteria do not have to fix the nitrogen themselves.arrow_forwardAndoy regularly visits his rice field each morning to see if the plants are growing healthy with profuse tillers. He likewise patiently sees if the irrigation is timely set for each paddy to have sufficient water to sustain the growth. As he continues going around places, he noticed some plants that exhibit drying up of tillers, particularly the sheaths, extending up to the leaves. These plants are situated on paddies near the source of irrigation water and scattered within each plot. He is quite alarmed by the condition thereby pulling out few affected plants and he thought of bringing it to Luis, an extension personnel in their municipality. Luckily Luis is around to help him diagnose such abnormality. He interviewed Andoy regarding the environmental conditions and recent cultural practice(s) applied to the plots such as fertilization, application of pesticides, among others. Luis feels that knowing these may help him trim down the possibilities whether the drying may be…arrow_forward
- The buds of certain plants occupy a definite position within the soil or on itssurface. This position is mostly obtained by the pull of special roots, which have been termed contractile roots. Such roots exist in many herbaceousdicotyledons. Identify this type of modified root.arrow_forwardTRUE OR FALSE Rice varieties with erectophile leaves are more susceptible to photorespiration compared to those with planophile leaves.arrow_forwardPlants do not require oxygen to produce ATP. A) True B) Falsearrow_forward
- The Irish potato famine was an important historical event that occurred in the 1840’s. The Irish were generally low income, and relied entirely on a particular variety of potato, known as "lumpers”. This strain of potato was susceptible to a rot caused by Phytophthora infestans. This led to wide-spread potato spoilage, which devastated the food supply, and ultimately caused many deaths. What would have been an effective strategy to avoid the Irish potato famine? Plant a more diverse mix of potatoes. Use antibiotics on the potatoes to protect from the rot. Expand cropland to increase the total number of potatoes grown. Use fertilizers, crop rotation, and irrigation to improve potatoes crop yields.arrow_forwardTRUE OR FALSE Rice varieties with erectophile leaves are more susceptible to photo respiration compared to those with planophile leaves.arrow_forwardWhy is plant transpiration generally an invisible processarrow_forward
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- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning