Lesson BSAA:A4-3
Plant Tissue Testing
 
CD BSAA.  Biological Science Applications in Agriculture
Unit A.  Plant Science
Problem Area 4.  Managing Inputs for Plant Growth
Lesson 3.  Plant Tissue Testing
 
 

What are nitrogen, phosphorus, and potassium considered to be?

 

a.                  micronutrients

b.                  primary micronutrients

c.                  primary macronutrients

d.                  secondary macronutrients

Answer: c

What is pH?

 

a.                  the measure of alkalinity or acidity

b.                  the measure of nutrients

c.                  the measure of available nutrients

d.                  the exchange of nutrients

Answer: a

__________________________ is any material that is provided to plants to supply the nutrients needed for plant growth.

 

a.                  A filler

b.                  An essential nutrient

c.                  An ion

d.                  A fertilizer

Answer: d

What is nitrogen fixation?

 

a.                  the conversion of nitrogen from an inorganic or mineral form to an organic form

b.                  the conversion of atmospheric nitrogen into oxidized forms that can be assimilated by plants

c.                  the incorporation of nitrogen into organic cell substances by living organisms

d.                  the recycling of nitrogen as it moves between the abiotic (non-living) and biotic (living) parts of the environment

Answer: b

__________________________ is where two dissimilar organisms live together in a mutually beneficial relationship.

 

a.                  Symbiosis

b.                  Rhizobia

c.                  Nitrification

d.                  Inoculation

Answer: a
What is the purpose of the root cap?
a)inhibits the absorption of water
b)protects the meristem
c)increase the surface area of the root
d)provides an area for photosynthesis to take place


Answer: b
Within a root structure, where does the greatest water absorption occur?
a)apical meristem
b)epidermal cells
c)cuticle
d)root hairs


Answer: d
How are roots different than stems on a dicot plant?
a)roots contain a pith
b)roots provide a location for photosynthesis to occur
c)roots contain a cuticle
d)none of the above


Answer: d
What is the primary function of the cortex?
a)provide root protection
b)transport of water
c)storage of starches
d)all of the above


Answer: c
What do sweet potatoes, yams, turnips, carrots, and sugar beets have in common?
a)all are perennials
b)all are roots with tremendous starch storage capability
c)contain a cuticle and pith within their root system
d)all are warm season vegetables


Answer: b
Which of the following regulates the flow of water into the xylem?
a)capacity cells
b)Casparian strip
c)cortex cells
d)epidermal cells


Answer: b
The innermost layer of the cortex consists of tightly fitting cells called the _____.
a)pericycle
b)vascular tissue
c)endodermis
d)xylem


Answer: c
Where do lateral or branch roots originate?
a)pericycle
b)vascular cambium
c)phloem tissue
d)Casparian strip


Answer: a
What joins with the pericycle to form a continuous ring in woody roots?
a)vascular cambium
b)epidermis
c)pith
d)none of the above


Answer: a
How does water move in the extracellular route?
a)horizontally through the cells between the epidermis and xylem
b)water moves though the spaces between cells
c)moves along the outside wall from one cell to another
d)by means of absorption


Answer: b
Which of the following components are found in soil?
a)air
b)living organisms
c)weathered rock
d)all of the above


Answer: d
How could sand, clay, and silt be classified?
a)organic matter
b)inorganic matter
c)decayed matter
d)living organisms


Answer: b
What is the percentage of organic matter in soil?
a)65 percent
b)45 percent
c)15 percent
d)5 percent


Answer: d
Why is the A horizon of soil typically darker than other horizons?
a)The A horizon contains a high organic matter content.
b)The A horizon is made up of solid bedrock.
c)The A horizon contains parent material and weathered rock.
d)The A horizon is also called the subsoil where less nutrients can be found.


Answer: a
Why is it difficult for roots to grow in the C horizon?
a)The soil found in the C horizon has good porosity.
b)The C horizon allows for good exchange of gases because of high organic matter.
c)The C horizon contains parent material and weathered rock not allowing for porosity and oxygen for cellular respiration.
d)The soil found in the C horizon holds the greatest amount of decayed organic matter.


Answer: c
Which of the following has good aeration?
a)clay soils
b)clay/silt soils
c)sandy soils
d)none of the above


Answer: c
If water is found in the pore spaces of soil and can be absorbed by the plant roots then what is this referred as?
a)pore spaces
b)aeration
c)available water
d)unavailable water


Answer: c
Which of the following has high water-holding capacity?
a)sandy soils
b)clay soils
c)sandy/silt loam soils
d)parent material


Answer: b
Which of the following are cations?
a)calcium
b)clay
c)organic matter
d)all of the above


Answer: a
The _____ the cation exchange capacity, the _____ the fertility a soil will have.


a)greater, fewer
b)fewer, greater
c)greater, greater
d)none of the above


Answer: c
How do plants use minerals?
a)Plants use minerals for the structural components for proteins and carbohydrates.
b)Plants use minerals for metabolic processes.
c)Plants use minerals to maintain osmotic balance.
d)all of the above


Answer: d
Which of the following mineral is used in chlorophyll?
a)calcium
b)phosphorus
c)potassium
d)magnesium


Answer: d
_____ is recognized as an enzyme activator for more than 50 enzymes.
a)Zinc
b)Potassium
c)Sulfur
d)Boron


Answer: b
There are sixteen essential elements for plant growth; nine of them are required in greater quantity than the others. What are these referred to as?
a)macronutrients
b)micronutrients
c)supplemental nutrients
d)developmental nutrients


Answer: a
Which of the following are classified as secondary macronutrients?
a)nitrogen, magnesium, iron
b)calcium, copper, and chlorine
c)sulfur, magnesium, calcium
d)boron, sulfur, potassium


Answer: c