Soil/Plant Nutrition Cont'd

Question 0

This is an aggregate of two or more minerals.

Answer 0

Rock

Question 1

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

Answer 1

Soil

Question 2

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

Answer 2

Weathering

Question 3

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

Answer 3

Physical Weathering

Question 4

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

Answer 4

Chemical Weathering

Question 5

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

Answer 5

Biotic Weathering

Question 6

This soil is soft in consistency and fosters tooth growth.

Answer 6

Humus

Question 7

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

Answer 7

A Horizon

Question 8

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

Answer 8

B Horizon

Question 9

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

Answer 9

C Horizon

Question 10

What are the 3 major soil particles?

Answer 10

Sand
Silt
Clay

Question 11

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

Answer 11

Leeching

Question 12

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

Answer 12

Cation Exchange

Question 13

This is a symbiotic relationship in which both participants benefit.

Answer 13

Mutualistic Relationship

Question 14

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

Answer 14

Rhizophere

Question 15

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

Answer 15

Soil Fungi

Question 16

These are the mutualistic associations of roots and fungi.

Answer 16

Mycorrhizae

Question 17

This type of mycorrhizae grow on the root surface.

Answer 17

Ectomycorrhizae

Question 18

This type of mycorrhizae grow into the root cortex.

Answer 18

Arbuscular Mycorrhizae

Question 19

These are specialized structures for nutrient transfer.

Answer 19

Arbuscules

Question 20

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

Answer 20

Epiphytes

Question 21

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

Answer 21

Parasite

Question 22

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

Answer 22

Carnivorous Plants