nutrients Flashcards

(31 cards)

1
Q

a mutualistic, symbiotic relationship w/ plant roots and fungus

A

Mycorrhizae

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2
Q

describe the symbiotic relationship between mycorrhizae and roots

A

the fungus gives phosphates to the plant=> the plant gives the fungus some of its photosynthetic food

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3
Q

what are the 2 types of mycorrhizae

A

Ectomycorrhizae and Endomycorrhizae

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4
Q

what are ectomycorrhizae

A

the fungus that wraps plant roots in a fungal sheath

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5
Q

what are endomycorrhizae

A

-penetrates into roots between the plants cells without puncturing the cell wall

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6
Q

rhizobium

A

bacteria in legumes which are nitrogen fixing

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7
Q

what can NO mycorrhizae cause

A

can cause stunted plant growth AND mycorrhizae is the reason angiosperms and gymnosperms were able to colonize land

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8
Q

How do most plants obtain nitrogen?

A

they obtain nitrogen from roots using bacteria from the soil

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9
Q

what is a common bacteria in the soil that converts:
N2=>NH2=>NH4

A

Rhizobium

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10
Q

where do all the mutualistic prokaryotes in the roots infect, causing them to enlarge

A

Legumes

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11
Q

why are carnivorous plants carnivores?

A

the soil in their habitat is too acidic to obtain nutrients through the the roots

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12
Q

how carnivorous plants digest

A

they secrete enzymes that capture and breakdown the organism for protein which releases nitrogen

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13
Q

why does endothermy require more energy than ectothermy

A

endotherms must regulate their own body temp which takes more energy than being ectothermic

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14
Q

4 macronutrients needed

A

lipids
carbs
proteins
nucleic acids

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15
Q

why do lipids not break down into monomers

A

lipids are made up of glycerol and fatty acid chains, they are not polymers bc theyre not a chain of a singular substance

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16
Q

hydrolysis

A

breaks down macro nutrients using water and enzymes

17
Q

cation exchange summarized

A

soil attracts k, Ca, Mg, Cu and these molecules attach itself to the soil particles

18
Q

how do plants get K, Phos, and nitrogen?

A

-K= cation exchange
-Phos=fungal hyphae mycorrhizae
-Nitrogen-nitrogen fixing bacteria ex: Rhizobium

19
Q

why are amino acids considered essential to animal health

A

there are 20 amino acids but we only make 10 ourselves so we must get the other 10 from the food we consume

20
Q

what can too much vitamin C cause

A

gastrointestinal upset

21
Q

what can too much Vitamin K cause

22
Q

minerals animals absorb in order to function

A

-calcium
-phosphorus
-sodium
-potassium
-magnesium
-chlorine

23
Q

Digestive system

A

all phylum except phylum porifera have a digestive system and there are 2 types

24
Q

what are the 2 types of digestive systems

A
  1. incomplete digestive system (gastrovascular cavity ex: Platyhelminthes, cnidaria
  2. Complete digestive system which is evolutionarily advanced
25
4 processes in digestion
1. ingestion 2. digestion 3. absorbtion 4. elimination
26
macronutrients is measured in?
ppm- parts per million
27
what are some nonmineral macronutrients plants need?
carbon, oxygen, hydrogen=> plants usually get this from CO2 and H2O from the air
28
organic =
vitamin- plants make their own, animals needs vary
29
inorganic=
minerals (ions)- both plants and animals need them
30
Mineral macronutrients (big three)?
nitrogen, phosphorus, potassium
31
casparian strip
a waxy band that surrounds endodermian cells