Nutrition In Plants Flashcards
Limiting factors for photosynthesis
Light
Co2
Tempreture
What is function of waxy cuctile
1.reduce water loss from plant
2.act as a barrier to the enteru of disease cause microorganisms of bacteria and fungi
Upper epiderm
Thin and transpart to allow light to pentrate
Plaside mesophyl layer
1 Eloganted cells carry large number of chloroplast
2.chloroplast contain chloroplast contain chlorophyll absorb light
3.periendicular to upper eppiderm to obtain maxium light intensity
Lower epedirm
.Stomata Allow diffusion of gases during photosynthesis and respiration
.Guard cell control opening and closure of stomata
What vein consists of
Phelom
Xylem
How is structure of leaf adapt for photosynthesis
1.plaside mesophyll layer is tightly packed with cells contain many chloroplast that trap light for photosynthesis
2.lower epiderm contain stomata to allow diffusion of co2 into and oxygen out of leaf
3.upper epiderm is transpert with no chloroplast to allow easy penetration of sunlight
4.leaf is thin to provide short diffusion distance fir co2 and easy for light to penetration
What mineral requirements for plants and their usage
Nitrate:ammino acid for building protien for growth4
Magnesium:for making chlorophyll
Deffincy of nitrate and magnesium
Stunted growth and yellow
What meant by photoautotrpic
Plants make their own nutrtion using carbon dioxide and water using energy from sunlight in a process called photosynthesis
Why plants use glucose
1.respiration to release energy
2.turned into celluose to make cell wall
3.store glucose as starch
4.make protein and fats
Balanced equation of photosynthesis
6co2+6H2o=C6H12O6+6O2
Word equation of photosynthesis
Carbondioxide+water=glucose +oxygen
What will happen when temperature increase
Rate of photosynthesis increase
Kinetic energy increase
Collisions increase
Rate of reaction increase
What will happen there’s very high temperature in photosynthesis
Enzymes denature
Stomata close
Less diffiusion
Rate of photosynthesis decrease
What will happen when co2 increase in photosynthesis
Faster it can photosynthesis
Test leaf for starch
-place leaf in boling water
-place hot ethanol
-place leaf in hot water
-put iodine
-water bath
-use goggles
Why sodiumhydroxide is investaging how to grow spacestations
Source of food,produce oxygen, absorb carbondioxide
Test for carbondioxide in leaf for photosynthesis
-place plant in dark for 24 hour to destarch
-place plant in light
-use sodium hydroxide
-use iodine solution
Test for chlorophyll
-keep all leaves in normal atmosphere
-use leaf with chlorophyll and one without
-compare Blue Black with green area
