HORTICULTURE EXAM #2 QUESTIONS
WITH COMPLETE ANSWERS
The tropics are between what latitude lines? - Answer-The tropics lie between the
Tropics of Cancer and Capricorn latitudes 23 degree north and south of the equator
0 degree
In the northern hemisphere, what day is the longest, what day is the shortest. What
are these days called? - Answer-Summer Solstice: June 21 or 22 tilted 23 ½ degree
towards sun
- Northern hemisphere's longest day
Winter Solstice: December 21 or 22 same degree away from the sun
- Northern Hemisphere's shortest day
What days are the equinoxes, and how long are the day/night hours - Answer-Vernal
or Spring Equinox: March 20 or 21, when the earth's axis is neither towards or away
from the sum
Autumnal or Fall Equinox: September 22 or 23 same as vernal
These days have an approx. equal number of day and night (12 hours each)
Which of the following is/are true?
A. Photosynthesis produces CHOs and CO2
B. Photosynthesis requires light, water, and CO2
C. Respiration produces CHOs and CO2
D. Respiration requires CHOs and O2
E. Two of the above are true - Answer-B
The onion plant flowers out in 2 growing seasons making it a .................. - Answer-
Biennial
Typically plant life cycles pass through 2 states:
................ & ............. - Answer-Vegetative & Reproductive
A ................. plant lives for more than 2 growing seasons. - Answer-Perennial
An example of a monocarp is a .................... - Answer-Agave Plant (Bromeliads)
Plant that sheds its leaves yearly are called ................. - Answer-Deciduous and
Semi-evergreen
The Texas Live Oak plant has what type of leaf retention? - Answer-Semi-
Evergreen: perennial plants that shed their leaves when the new leaves are
emerging in the spring (Not in mass)
The perfect flower has what 2 parts? - Answer-Have the pistil and stamen
Leaves and stems are the "source" of CHO production. T or F - Answer-True
, The stamen is the area that develops into the ovary. T or F - Answer-False
The stamen produces the pollen sex cell component. T or F - Answer-True
A carrot is harvest to eat at year 2. T or F - Answer-False
The local Live Oak trees are annual semi-ever green trees. T or F - Answer-True
Monocarps start dying after they flower out. T or F - Answer-False they start
senecence before they die
A plant the lives for 1 growing season is a ............ - Answer-Annual
A plant that grows vegetatively for year one, then flowers in year two is a......... -
Answer-Biennial
An Oak tree drops its leaves en mass making it a ............... tree. - Answer-
Deciduous
Interstate 35 in Texas is the default ....................... - Answer-Dry line
Rice is a hydrophyte plant which means............... - Answer-it is adapted to grow in
water or wet soils
What does deciduous plants do? - Answer-perennial plants that shed their leaves in
mass (Same Time) every year during the fall and winter
Include many trees and shrubs that are found in the landscape and native forests
What do Evergreen plants do? - Answer-perennial plants that retain their leaves
throughout the seasons
Include many trees and shrubs found in the landscape
What do Semi-Evergreen plants do? - Answer-Semi-Evergreen: perennial plants that
shed their leaves when the new leaves are emerging in the spring (Not in mass)
(The Texas Live Oak is an example)
What does herbaceous mean? - Answer-Non-woody plants usually short lived
sometimes referred to as succulents
Herbaceous Annuals - Answer-- Dieback completely at the end of the growing
season
o Geranium, coleus, Begonia
Herbaceous Biennials - Answer-- die back to the ground at the end of the year one,
then emerge from the soil the second year to flower, and die at the end of year two
o Bluebonnet, Carrots
Herbaceous Perennials - Answer-- stems die at the end of the growing season, but
parts survive under the ground, emerging again to grow season after season
o Grasses, ferns, Peony, Hosta, Mint
WITH COMPLETE ANSWERS
The tropics are between what latitude lines? - Answer-The tropics lie between the
Tropics of Cancer and Capricorn latitudes 23 degree north and south of the equator
0 degree
In the northern hemisphere, what day is the longest, what day is the shortest. What
are these days called? - Answer-Summer Solstice: June 21 or 22 tilted 23 ½ degree
towards sun
- Northern hemisphere's longest day
Winter Solstice: December 21 or 22 same degree away from the sun
- Northern Hemisphere's shortest day
What days are the equinoxes, and how long are the day/night hours - Answer-Vernal
or Spring Equinox: March 20 or 21, when the earth's axis is neither towards or away
from the sum
Autumnal or Fall Equinox: September 22 or 23 same as vernal
These days have an approx. equal number of day and night (12 hours each)
Which of the following is/are true?
A. Photosynthesis produces CHOs and CO2
B. Photosynthesis requires light, water, and CO2
C. Respiration produces CHOs and CO2
D. Respiration requires CHOs and O2
E. Two of the above are true - Answer-B
The onion plant flowers out in 2 growing seasons making it a .................. - Answer-
Biennial
Typically plant life cycles pass through 2 states:
................ & ............. - Answer-Vegetative & Reproductive
A ................. plant lives for more than 2 growing seasons. - Answer-Perennial
An example of a monocarp is a .................... - Answer-Agave Plant (Bromeliads)
Plant that sheds its leaves yearly are called ................. - Answer-Deciduous and
Semi-evergreen
The Texas Live Oak plant has what type of leaf retention? - Answer-Semi-
Evergreen: perennial plants that shed their leaves when the new leaves are
emerging in the spring (Not in mass)
The perfect flower has what 2 parts? - Answer-Have the pistil and stamen
Leaves and stems are the "source" of CHO production. T or F - Answer-True
, The stamen is the area that develops into the ovary. T or F - Answer-False
The stamen produces the pollen sex cell component. T or F - Answer-True
A carrot is harvest to eat at year 2. T or F - Answer-False
The local Live Oak trees are annual semi-ever green trees. T or F - Answer-True
Monocarps start dying after they flower out. T or F - Answer-False they start
senecence before they die
A plant the lives for 1 growing season is a ............ - Answer-Annual
A plant that grows vegetatively for year one, then flowers in year two is a......... -
Answer-Biennial
An Oak tree drops its leaves en mass making it a ............... tree. - Answer-
Deciduous
Interstate 35 in Texas is the default ....................... - Answer-Dry line
Rice is a hydrophyte plant which means............... - Answer-it is adapted to grow in
water or wet soils
What does deciduous plants do? - Answer-perennial plants that shed their leaves in
mass (Same Time) every year during the fall and winter
Include many trees and shrubs that are found in the landscape and native forests
What do Evergreen plants do? - Answer-perennial plants that retain their leaves
throughout the seasons
Include many trees and shrubs found in the landscape
What do Semi-Evergreen plants do? - Answer-Semi-Evergreen: perennial plants that
shed their leaves when the new leaves are emerging in the spring (Not in mass)
(The Texas Live Oak is an example)
What does herbaceous mean? - Answer-Non-woody plants usually short lived
sometimes referred to as succulents
Herbaceous Annuals - Answer-- Dieback completely at the end of the growing
season
o Geranium, coleus, Begonia
Herbaceous Biennials - Answer-- die back to the ground at the end of the year one,
then emerge from the soil the second year to flower, and die at the end of year two
o Bluebonnet, Carrots
Herbaceous Perennials - Answer-- stems die at the end of the growing season, but
parts survive under the ground, emerging again to grow season after season
o Grasses, ferns, Peony, Hosta, Mint
