HRT2100 Test 3

The one that burned lime is made from (the material before it is burned)

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

b. calcic limestone

Can cause rust stains on sidewalks and clothing
a. aluminum sulfate
b. iron sulfate
c. sulfur

b. iron sulfate

Which of the soil components have the highest cation exchange capacity?
a. silt
b. sand
c. clay
d. It varies

c. clay

Cations carry
a. a negative electrical charge
b. a positive electrical charge
c. no electrical charge

b. a positive electrical charge

Also known as "ferrous sulfate"

a. aluminum sulfate
b. iron sulfate
c. sulfur

b. iron sulfate

Word used to describe the fact that one end of a water molecule has a slight positive charge, and the other end has a slight negative charge.

a. adhesion
b. coherence
c. polar
d. cohesion
e. none of the above

c. polar

Stage in which the explant goes from in vivo to in vitro

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

b. Stage I

The active ingredient in Nair and other depilatories (hair removers)

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

d. hydrated lime

In the barrel of monkeys analogy, monkey holding monkey hand represents what?

a. adhesion
b. coherence
c. water molecules
d. cohesion
e. none of the above

d. cohesion

Stage that lasts the longest -- often a year, with many replates

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

c. Stage II

Another name for slaked lime 

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

d. hydrated lime

Indicates the attraction of water molecules to other surfaces (e.g., water to xylem wall) 

a. adhesion
b. coherence
c. polar
d. cohesion
e. none of the above

a. adhesion

Most plants measure day length with phytochrome, in
a. flower buds
b. roots
c. stems
d. leaves
e. all of the above

d. leaves

The other name for burned lime

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

c. quicklime

Causes itching, burning eyes, sore throat and cough, and it stinks
a. aluminum sulfate
b. iron sulfate
c. sulfur

c. sulfur

The steam pressure cooker in which tools are sterilized 

a. replate
b. H.E.P.A.
c. autoclave

d. agaragar
e. aseptic

c. autoclave

Once you add some water to burned lime, it becomes this material 

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

d. hydrated lime

Also known as "copperas"

a. aluminum sulfate
b. iron sulfate
c. sulfur

b. iron sulfate

A

Of all the materials listed, the one that works the slowest but lasts longest in the soil 

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

a. dolomite

So completely sterile that it was used to dress wounds in World War II.

a. Sand
b. Canadian Peat
c. Perlite
d. Florida Peat
e. Not Listed

b. Canadian Peat

Indicates the attraction of a water molecule to another water molecule

a. adhesion
b. coherence
c. polar
d. cohesion
e. none of the above

d. cohesion

D

Made by exploding lava rock in a furnace

a. Sand
b. Canadian Peat
c. Perlite
d. Florida Peat
e. Not Listed

c. Perlite

C

To transfer a tissue-cultured plant from one jar to another

a. replate
b. H.E.P.A.
c. autoclave

d. agaragar
e. aseptic

a. replate

Always has a very low pH (3.5) so must be treated with a liming material

a. Sand
b. Canadian Peat
c. Perlite
d. Florida Peat
e. Not Listed

b. Canadian Peat

On a grafted plant, the part that forms the top of the plant -- its trunk, branches, leaves, flowers, and fruit, is the

a. stock
b. scion
c. union
d. bond
e. scallion

b. scion

57. Stage in which an auxin would be used

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

d. Stage III

Made of partially decayed plants of various species, with a variable pH

a. Sand
b. Canadian Peat
c. Perlite
d. Florida Peat
e. Not Listed

d. Florida Peat

Popular in southeastern states; works quickly 
a. aluminum sulfate
b. iron sulfate
c. sulfur

b. iron sulfate

Canadian peat is, on average, how old?
a. 5-10 years
b. 50-100 years
c. 500-1000 years
d. more than 5000 years
e. no one has the slightest idea

c. 500-1000 years

B

Made from seaweed from the Indian Ocean, this stuff causes the medium to gel.

a. replate
b. H.E.P.A.
c. autoclave

d. agaragar
e. aseptic

d. agaragar

Long-day plants (e.g., tobacco) will decide to flower when the active
form of phytochrome (use #47 answer choices) 
a. drops below some predetermined, critical level, just before sunrise
b. fails to drop below some predetermined, critical level, just before sunrise
c. rises above some predetermined, critical level, during the day
d. You can’t predict this.

b. fails to drop below some predetermined, critical level, just before sunrise

Stage in which roots form (assume you’re not skipping any steps)

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

d. Stage III

Stage in which the explant goes from in vitro to in vivo 

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

e. Stage IV

During the day, the pressure inside the xylem at the base of a tree trunk
a. is about the same as normal atmospheric pressure
b. is much less than normal atmospheric pressure (it’s under suction)
c. is much more than normal atmospheric pressure (it’s under pressure)
d. it varies from one tree species to another, and how tall the tree is
e. no one knows; this is the 16th greatest mystery in the universe

b. is much less than normal atmospheric pressure (it’s under suction)

Totally clean, no bacteria, fungi, or other organisms

a. replate
b. H.E.P.A.
c. autoclave

d. agaragar
e. aseptic

e. aseptic

Florida peat is, on average, how old?
a. 5-10 years
b. 50-100 years
c. 500-1000 years
d. more than 5000 years
e. no one has the slightest idea

b. 50-100 years

Short-day plants (e.g., a poinsettia) will decide to flower when the active form of phytochrome
a. drops below some predetermined, critical level, just before sunrise
b. fails to drop below some predetermined, critical level, just before sunrise
c. rises above some predetermined, critical level, during the day
d. You can’t predict this.

a. drops below some predetermined, critical level, just before sunrise

D

B

Slowest working material listed, but also the longest lasting

a. aluminum sulfate
b. iron sulfate
c. sulfur

c. sulfur

Stage in which a cytokinin would be used

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

c. Stage II

Which of the soil components has the largest particle size?
a. silt
b. sand
c. clay
d. It varies

b. sand

The one that contains significant magnesium

a. dolomite
b. calcic limestone
c. quicklime
d. hydrated lime
e. none of the above

a. dolomite

A soil with a pH of 5 has ___ times as many hydrogen ions as does a soil
of pH 7.
a. 10
b. 0.1
c. 100
d. 0.01
e. there is no way to predict that

c. 100

B

Stage in which roots form (assume you did skip one step) 

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

e. Stage IV

A

The source of energy to move water up through the xylem of the trunk of the tree is

a. pressure created by the roots burning carbohydrate
b. solar energy, heating the trunk
c. solar energy, heating the leaves
d. carbohydrate energy being burned by the leaves or roots
e. no one knows. It’s one of the 17 greatest mysteries of the universe

c. solar energy, heating the leaves

Stage in which the explant has to be disinfected with bleach

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

b. Stage I

The verb that is used to indicate that a graft successfully healed and the
plant lived, is
a. to strike
b. to take
c. to stick
d. to poke
e. to invoke the infield fly rule

b. to take

Stage often skipped entirely, because it is not necessary for most crops

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

d. Stage III

n the barrel of monkeys analogy, monkey holding human hand represents what?

a. adhesion
b. coherence
c. water molecules
d. cohesion
e. none of the above

a. adhesion

Stage in which the number of plants is increasing

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

c. Stage II

Stage that isn’t really part of true tissue culture, but is usually done anyway 

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

a. Stage 0

If a commercial tissue culture lab started with a single piece of a plant, what is the maximum number of plants they would typically make from it, in a year?
a. 1,000
b. 5,000
c. 10,000
d. 100,000
e. 1,000,000

e. 1,000,000

Popular in northeastern states; works quickly a

a. aluminum sulfate
b. iron sulfate
c. sulfur

a. aluminum sulfate

Which of the following is NOT controlled by the phytochrome system?
a. bulbing of onions
b. a deciduous tree’s decision to drop its leaves and go dormant in the fall
c. the decision of a short-day plant to flower
d. the decision of a long-day plant to flower
e. a deciduous tree’s decision to begin growing in the spring

e. a deciduous tree’s decision to begin growing in the spring

On a grafted plant, the scar that shows where the actual surgery was done is called the

a. stock
b. scion
c. union
d. bond
e. scallion

c. union

The chemical/physical theory of how a tree lifts water says that the
maximum limit to which a tree could grow (theoretically) would be around
a. 200 feet (61m)
b. 300 feet (91m)
c. 400 feet (122m)
d. 500 feet (152m)
e. 600 feet (183m)

e. 600 feet (183m)

A

On a grafted plant, the part that forms the roots and perhaps a bit of the bottom of the trunk is called the
a. stock
b. scion
c. union
d. bond
e. scallion

a. stock

C

Which of these soil components has the smallest particle size?
a. silt
b. sand
c. clay
d. It varies

c. clay

The tallest tree now living in the world is
a. not quite 200 feet tall (61m)
b. not quite 300 feet tall (91m)
c. not quite 400 feet tall (122m)
d. well over 500 feet tall (152 m)
e. at least 700 feet tall.( 213 m)

c. not quite 400 feet tall (122m)

If dry, its dust can be dangerous, causing silicosis of the lungs.

a. Sand
b. Canadian Peat
c. Perlite
d. Florida Peat
e. Not Listed

c. Perlite

The filter in a laminar-flow hood, which removes all bacteria and fungal spores

a. replate
b. H.E.P.A.
c. autoclave

d. agaragar
e. aseptic

b. H.E.P.A.

Stage done in an intermittent mist bed 

a. Stage 0
b. Stage I
c. Stage II
d. Stage III
e. Stage IV

e. Stage IV

Heaviest of all the media listed; useful to keep pots from blowing over in wind

a. Sand
b. Canadian Peat
c. Perlite
d. Florida Peat
e. Not Listed

a. Sand

In the barrel of monkeys analogy, the monkeys themselves represent what?

a. adhesion
b. coherence
c. water molecules
d. cohesion
e. none of the above

c. water molecules