Nutrition In Plants Flashcards

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1
Q

Limiting factors for photosynthesis

A

Light
Co2
Tempreture

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2
Q

What is function of waxy cuctile

A

1.reduce water loss from plant
2.act as a barrier to the enteru of disease cause microorganisms of bacteria and fungi

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3
Q

Upper epiderm

A

Thin and transpart to allow light to pentrate

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4
Q

Plaside mesophyl layer

A

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

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5
Q

Lower epedirm

A

.Stomata Allow diffusion of gases during photosynthesis and respiration
.Guard cell control opening and closure of stomata

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6
Q

What vein consists of

A

Phelom
Xylem

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7
Q

How is structure of leaf adapt for photosynthesis

A

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

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8
Q

What mineral requirements for plants and their usage

A

Nitrate:ammino acid for building protien for growth4
Magnesium:for making chlorophyll

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9
Q

Deffincy of nitrate and magnesium

A

Stunted growth and yellow

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10
Q

What meant by photoautotrpic

A

Plants make their own nutrtion using carbon dioxide and water using energy from sunlight in a process called photosynthesis

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11
Q

Why plants use glucose

A

1.respiration to release energy
2.turned into celluose to make cell wall
3.store glucose as starch
4.make protein and fats

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12
Q

Balanced equation of photosynthesis

A

6co2+6H2o=C6H12O6+6O2

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13
Q

Word equation of photosynthesis

A

Carbondioxide+water=glucose +oxygen

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14
Q

What will happen when temperature increase

A

Rate of photosynthesis increase
Kinetic energy increase
Collisions increase
Rate of reaction increase

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15
Q

What will happen there’s very high temperature in photosynthesis

A

Enzymes denature
Stomata close
Less diffiusion
Rate of photosynthesis decrease

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16
Q

What will happen when co2 increase in photosynthesis

A

Faster it can photosynthesis

17
Q

Test leaf for starch

A

-place leaf in boling water
-place hot ethanol
-place leaf in hot water
-put iodine
-water bath
-use goggles

18
Q

Why sodiumhydroxide is investaging how to grow spacestations

A

Source of food,produce oxygen, absorb carbondioxide

19
Q

Test for carbondioxide in leaf for photosynthesis

A

-place plant in dark for 24 hour to destarch
-place plant in light
-use sodium hydroxide
-use iodine solution

20
Q

Test for chlorophyll

A

-keep all leaves in normal atmosphere
-use leaf with chlorophyll and one without
-compare Blue Black with green area