Botany 3.2
Terms
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- Soil
- -produced by erosion of rocks and mountains -minerals in soil depend on parent material -Provides most of the elements needed by plants
- __ essential elements for plants
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- An element is essential if...
- 1. it is used in biochemistry of cell 2.Plant will nor reproduce with out it 3. Deficiency symptoms
- Deficiency symptoms
- 1.function of element in plant 2.mobility of element in phloem.
- How do plants adsorb nutrients?
- The element must be water soluble which is is affected by the soil\'s pH.
- Micro nutrients are usually __ and do ___
- metals; cotrol enzyme function
- Mobile elements
- nitrogen, phosphorous, potassium, magnesium and sulfur.
- non-mobile elements
- calcium, iron, zinc, molybdenum, boron, copper, and manganese.
- chlorosis
- yellowing of leaves due to deficiency
- the __ element can be moved through the ___ from ___ to ___ leaves.
- deficient; phloem; old; new
- Iron can\'t be moved so __ leaves show deficiency first.
- younger
- Nitrogen can be moved so __ leaves show deficiency first.
- Older
- 3 Major nutrients that plants need and what they do:
- -Nitrogen (vegetative growth) -Phosphorous (flowering) -Potassium
- Negative effects of fertilizer
- People apply too much and cause run off. This causes water contamination and eutrophication.
- Cause of 1930\'s Dust Bowl
- change in climate and abuse of land
- In the US, erosion removes soil _ times faster than it is formed
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- Germ
- embryo of a grain.
- starch
- main component of seed. Feeds embryo.
- Bran
- outer shell of grain seed