Plant Nutrition

Question 1

In plant nutrients what are the carbon compound(s).

Answer 1

Carbohydrates, Lipids, Proteins, and Nucleic Acids

Question 2

What are the 6 essential minerals?

Answer 2

Carbon Dioxide
Nitrogen & Sulpher 
Nitrogen & Phosphorus
Nitrogen, Iron & Magnesium 
Potassium
Calcium

Question 3

True or False: Soil particles are positively charged.

Answer 3

False: Soil particles are negatively charged.

Question 4

True or False: Plants try to retain cations and leach anions from soil

Answer 4

True

Question 5

During ion absorption, how do plants acidify the soil?

Answer 5

They release CO2 from respiration and pumping hydrogen ions into the soil

Question 6

After the soil is acidified what do roots do?

Answer 6

Absorb the cations

Question 7

How can you tell if a plant has a chlorophyll deficiency (chlorosis)?

Answer 7

Yellow midribs or midveins

Question 8

What does yellow margins mean in a plant?

Answer 8

They will have necrotic tips.

Question 9

Reddish margins mean the plant has Anthocyanins- what does this mean?

Answer 9

The plant has lots of a blue, violet, or red flavonoid pigment found in plants.

Question 10

What is an example of bacteria that live near the roots of plants? What is its function?

Answer 10

Rhizobacteria- form a symbiotic mutualistic relationship with the plant

Question 11

What are the 4 kinds of bacteria that assist plants?

Answer 11

Nitrogen-Fixing Bacteria
Ammonifying Bacteria
Nitrifying Bacteria
Denitrifying Bacteria

Question 12

What is the term used to describe bacteria living inside the plant to help it?

Answer 12

Endophytes

Question 13

What is the function of Rhizobium?

Answer 13

Induce the growth of nodules

Fix nitrogen from within

Question 14

What are Bacteriods?

Answer 14

Gram-negative, obligate anaerobic bacteria
They can use simple sugars, but the main sources of energy for Bacteroides species are in the gut are complex host-derived and plant glycans.

Question 15

What is the term used to describe fungi that from a symbiotic and sometimes parasitic relationship with the roots of a plant?

Answer 15

Mycorrhiaze

Question 16

What is the name of the fungus that has a dense sheath? What is its function?

Answer 16

Ectomycorrhizae- forms a symbiotic relationship with plant roots

Question 17

What does the Arbiscular fungi do?

Answer 17

type of Mycorrhiza in which the symbiont fungus penetrates the cortical cells of the roots of a vascular plant forming arbuscules

Question 18

What are the nutrient adaptation(s) and their function(s)?

Answer 18

Epiphytes- Absorb water through leaves
Parasites -Tap host tissue to steal sap
Carnivores -Nitrogen-poor soils