Soil/Plant Nutrition Cont'd Flashcards Preview

Principles of Biology II > Soil/Plant Nutrition Cont'd > Flashcards

Flashcards in Soil/Plant Nutrition Cont'd Deck (23):
0

This is a complex mixture of particles, composed of inorganic and organic constituents.

Soil

1

This is an aggregate of two or more minerals.

Rock

2

This process releases mineral nutrients and creates a substance more amenable for life.

Weathering

3

Heat, ice and pressure are factors of what type of weathering.

Physical Weathering

4

This type of weathering creates smaller particles and releases nutrients into soil.

Chemical Weathering

5

This type of weathering is a result of of a variety of organisms aiding in soil production.

Biotic Weathering

6

This soil is soft in consistency and fosters tooth growth.

Humus

7

This horizon of soil is considered to be "top soil", it is made up of humus and broken down rocks.

A Horizon

8

This horizon of soil is made up of less organic matter and is mostly rock.

B Horizon

9

This horizon of soil is made up of partially broken down rock.

C Horizon

10

What are the 3 major soil particles?

Sand
Silt
Clay

11

This is the dissolution and removal of inorganic ions as water moved through soil.

Leeching

12

This process is the replacement of mineral cations by H+ ions.

Cation Exchange

13

This is a symbiotic relationship in which both participants benefit.

Mutualistic Relationship

14

This is a narrow region of soil that is directly influenced by root secretions and associated soil microorganisms.

Rhizophere

15

These form mutualistic relationships with roots and play a major role in plant nutrition.

Soil Fungi

16

These are the mutualistic associations of roots and fungi.

Mycorrhizae

17

This type of mycorrhizae grow on the root surface.

Ectomycorrhizae

18

This type of mycorrhizae grow into the root cortex.

Arbuscular Mycorrhizae

19

These are specialized structures for nutrient transfer.

Arbuscules

20

These grow attached to other plants but NOT SOIL and are NOT PARASITES.

Epiphytes

21

These grow attached to other plants and obtain their source of nutrients from the host.

Parasite

22

These obtain some nitrogen and minerals from killing/digesting small animals.

Carnivorous Plants