Topic 11 - Plant Nutrition

Question 0

Clay

Answer 0

The finest constituent of soil.

Question 1

Sand

Answer 1

The largest constituent of soil.

Question 2

Silt

Answer 2

Constituent in size that is between clay and sand.

Question 3

Loam

Answer 3

A mixture of sand, silt, and clay. Does not need to be 1:1:1 ratio.

Question 4

Soil

Answer 4

A mixture of minerals, organic mater, and rock particles that support plant growth.

Question 5

Symbiosis

Answer 5

The close and protracted relationship between two or more species.

Question 6

Which group of plants is critical in fixing nitrogen?

Answer 6

Legumes.

Question 7

Nod factors.

Answer 7

Chemical signals produced by the bacteria rhizobia to produces nodules.

Question 8

Rhizobia

Answer 8

Bacteria that fixes nitrogen for the host plant.

Question 9

Micronutrients

Answer 9

Nutrients that the

Question 10

Micronutrients

Answer 10

A categorization of nutrients that a plant needs in relatively small quantity.

Question 11

Macronutrients

Answer 11

A categorized nutrient that plants need in relatively high quantities.

Question 12

Bacteriods

Answer 12

Plant tissues that house bacterial cells.

Question 13

Leghemoglobin

Answer 13

An oxygen buffer that allows rhizobia to fix nitrogen in the presence of oxygen, which it needs to conduct cellular respiration.