Related University Degree Botany essays

1. 

   How plants have adapted or become acclimated to shade.

   5 star(s)

   D1 has a high turnover rate so shade plants can easily resume photosynthesis once the sunfleck has passed. ROS may be removed by the enzyme superoxide dismutase (SOD). ROS formation is prevented by heat dissipation using the xanthophyll cycle. Xanthophyll is converted to zeaxanthin in the chloroplasts during high light levels and vice versa.

2. 

   Drought conditions, low and high temperatures, increased salt levels, pathogens and insects are common ...

   3 star(s)

   The hypersensitive response (HR) is also a mechanism which seems to be controlled by the plant in which a pathogen initiates the rapid cell death of the infected cell and the surrounding cells.

1. 

   Describe the major pathways and transformations involved in the atmospheric transport of Sulphur, produced as SO2 ...

   Highly soluble H2S has a short residual time of minutes, whereas SO2 may have a residual time of a magnitude longer, up to hours. While SO2 is in its gaseous form it is unlikely to react. However, it will, in moist air, tend to become dissolved in water.

2. 

   I plan to investigate how environmental conditions affect the transpiration of plants.

   To combat this ABA is produced by the plant which causes the rapid pumping of potassium ions out of the guard cells which closes them and so reduces the water loss by transpiration. Apparatus Needed For The Experiments 1. Privet shoot (used as it has many big leaves)

1. 

   Photosynthesis is the process by which green plants and certain other organisms transform inorganic ...

   If the photosynthetic reaction is a success O2 will be produced again and the disc will once again surface. This experiment involves a few variables, one variable which will be varied are the quality of light, chlorophyll best absorbs light in the wavelength range of 400-450 nm [blue light] and 650-700 nm [red light].

2. 

   To see what affect trampling has on the diversity of plants, their abundance, and ...

   This is because as they are stepped on, their meristem is not badly damaged because it is a basal meristem at the bottom of the plant. The meristem is the thing that helps the plant to grow. Without it, it would die.

1. 

   Surveying the Distribution and Abundance of Plants in Different Coppices

   Soil Moisture- if there isn't enough moisture in the soil, only certain plant species will survive as they have adapted to photosynthesise in those conditions. Also, lower soil moisture will prevent large numbers of a plant species from thriving in that area.

2. 

   The combination of constant warmth and abundant moisture of the tropical regions demonstrates a ...

   But in the tropical rainforest, plants grow so fast that they rapidly consume the nutrients from the decomposed leaf litter. As a result, most of the nutrients are contained in the trees and other plants rather than in the soil.