Exam Questions and CORRECT Answers
group of cells that are related in structure or function are called - CORRECT ANSWER -
tissues
the stem is the site of attachment for - CORRECT ANSWER - leaves, flowers, and fruits
what is the internode - CORRECT ANSWER - the portion of the stem between two leaves
buds are embryonic stems enclosed by scalelike leaves called - CORRECT ANSWER -
bud scales
meritism is a small group of cells that retain the capacity for - CORRECT ANSWER -
rapid growth
where is the apical meritism located - CORRECT ANSWER - at the tip of the stem
trees have seasonal growth patterns that form xylem in clearly defined - CORRECT
ANSWER - annual growth rings
what is the name for the bud at the tip of the stem - CORRECT ANSWER - terminal bud
in what part of a stem does the conduction of water occur - CORRECT ANSWER - xylem
or sapwood
what are stomata - CORRECT ANSWER - sites on a leaf for the exchange of gases and
water vapor
,what is the term for a leaf blade with several leaflets - CORRECT ANSWER -a
compound leaf
what type of roots do grasses have - CORRECT ANSWER - fibrous
how many cotyledons do dicotyledonous (dicot) have - CORRECT ANSWER - two
what color is the pigment known as chlorophyll - CORRECT ANSWER - green
what is the product of photosynthesis - CORRECT ANSWER - glucose
what are the three important nutrients in plant fertilizer? - CORRECT ANSWER -
nitrogen, phosphorus, potassium
how many years does an annual plant need to complete its life cycle? - CORRECT
ANSWER - one
what is soil pH - CORRECT ANSWER - a measure of soil acidity
what is the ideal pH for kentucky bluegrass - CORRECT ANSWER - around 6
what is the best time to seed a lawn - CORRECT ANSWER - fall, between september 1
and october 1
lawns should never remove more than - CORRECT ANSWER - one inch
when is soil aerification particularly beneficial - CORRECT ANSWER - when soil
compaction is a problem
, what does "damping off" refer too - CORRECT ANSWER - diseases that attack seedlings
prior to emerging from the soil or just after emergence
what is the largest and most important group of beneficial insects? - CORRECT
ANSWER - parasites
what are pathogens - CORRECT ANSWER - disease causing organisms such as bacteria,
viruses, fungi, protozoans, and nematodes
in insects with complete metamorphosis, what is the resting stage called? - CORRECT
ANSWER - the pupa
at what time of the year should Japanese beetle grubs be controlled - CORRECT
ANSWER - late august or early september
how do aphids cause damage to plants - CORRECT ANSWER - by sucking juices from
leaves, stems, or fruits
what is a gall - CORRECT ANSWER - an abnormal growth of plant tissue caused by a
gall-making insect, mite, or fungus
name one reason bindweed is hard to control - CORRECT ANSWER - because of its very
extensive root system
how many leaves do broad leaf weeds have when they emerge as seedlings - CORRECT
ANSWER - two
is plantain a grassy weed or a broadleef weed - CORRECT ANSWER - broadleaf
is chickweed an annual or a perennial weed - CORRECT ANSWER - annual