Shared Flashcard Set

Details

Plant Science 2075
N.A.
93
Plant Sciences
Undergraduate 2
12/07/2012

Additional Plant Sciences Flashcards

 


 

Cards

Term
The binomial system of plant nomenclature requires a plant name to have a genus and specific epithet that is derived from Greek.
Definition
False (Latin)
Term
Liberty Hyde Bailey, the father of horticulture, created the binomial system of plant nomenclature we use today.
Definition
False
Term
Your last name is equivalent to a plan'ts genus.
Definition
True
Term
A cultivar is a man-made and/or human maintained plant variety.
Definition
True
Term
90% of all cultivated plants have flowers and reproduce by seed.
Definition
True
Term
Gymnosperms have naked seed and either simple or compound leaves.
Definition
False
Term
Angiosperms are subdivided into monocots or dicots.
Definition
True
Term
Monocots compromise about 22% of all seed-bearing plants.
Definition
True
Term
Monocots produce wood.
Definition
False
Term
Dicots have leaves with a midrib, floral parts in multiples of 4 or 5, and produce nearly all the fresh fruits we eat.
Definition
True
Term
Plants in the mint family have square stems and are able to fix nitrogen from the atmosphere.
Definition
False (Can't fix nitrogen from the atmosphere)
Term
Stomata, found on the udnerside of leaves, are surrounded by guard cells.
Definition
True
Term
A poinsetta bloom is really modified bracts, not petals.
Definition
True
Term
Modified stems, like a potato and onion, are capable of photosynthesis.
Definition
False
Term
A bud is present at each node, even though it may be underdeveloped and difficult to see.
Definition
True
Term
The vascular bundles in dicots stems are arranged in a scattered pattern.
Definition
False
Term
Poinsettia is a poisonous plant.
Definition
False
Term
Adventitious roots grow from any tissue other than root tissue.
Definition
True
Term
Poinsettias were propagated in lab using stem tip cuttings; cuttings that contain a terminal bud.
Definition
True
Term
Sweet potatoes are modified roots capable of storing large quantities of carbohydrates.
Definition
True
Term
A pistil is made up of an anther and filament.
Definition
False (stamen)
Term
Seedling citrus trees have thorns when they are young because they are in the juvenile stage of growth.
Definition
True
Term
Sweet peppers can be pollinated and fetilized by tomatoes.
Definition
False
Term
Asparagus is a dioecious perennial vegetable with a 20-25 year life span.
Definition
True
Term
Fruit ripening is caused by the auxin, a plant hormone produced by the fruit.
Definition
False
Term
Dormancy is a stage of development when a plant slows or stops growing. It is usually caused by environmental changes like drought, or cold weather.
Definition
True
Term
Cell walls are mostly cellulose, a sugar plymer, which is digestible by humans.
Definition
False
Term
Chloroplasts comprise about 90% of a mature plant cell.
Definition
False
Term
Chromoplasts give flowers and fruits their color.
Definition
True
Term
Guttation is the loss of nearly pure water through the hydathodes in the leaf margins.
Definition
True
Term
Floral nectaries secrete sugary substances that attract pollinators to flowers.
Definition
True
Term
Xylem tissue is responsible for transporting carbohydrates from source sites to sink areas.
Definition
False
Term
The age of a tree can be determined by counting the annual rings (previous secondary xylem).
Definition
True
Term
Urushiol is the compound in poison ivy responsible for causing allergic skin rashes in many people.
Definition
True
Term
Seeds should be sown at a depth equal to the diameter of the seed.
Definition
False
Term
Fertilization is the transfer of pollen from an anther to the sticky surface of a stigma.
Definition
False
Term
ls are low in organic matter.
Definition
True
Term
Sandy soils have high cation exchange capacity.
Definition
False
Term
Nitrogen is an essential primary micronutrient.
Definition
False
Term
The newest foilage on a plant will exhibit immobile nutrient deficiency symptoms.
Definition
True
Term
Iron chlorosis on pin oaks is commonly due to elevated soil pH and not a lack of iron in the soil.
Definition
True
Term
Typically Missouri soils contain 3-4% organic matter.
Definition
False (look up)
Term
The ideal soil pH for a majority of garden plants is 4.5-5.5.
Definition
False
Term
Soil pH affects the availability of essential nutrients in the soil.
Definition
True
Term
Sphagnum peat moss is a good soil amendment because it has a high water holding capacity and a moderate rate of decomposition, but it's hydrophobic.
Definition
False ? Look up
Term
Water movement in a plant is due to the forces of adhesion, cohesion, osmosis, capillarity, and transpirational pull.
Definition
True
Term
Garden mums can be grown in partial shade.
Definition
False
Term
Micronutrients, also called trace elements, are essential plant nutrients that are needed in very small quantities.
Definition
True
Term
Plants absorb the majority of soil moisture through the root hairs.
Definition
True
Term
Nitrogen is the central atom of a chlorophyll molecule.
Definition
False
Term
Herbaceous plants have woody stems.
Definition
False
Term
Xylem tissue is the portion of a plants vascular system that is responsible for transporting food (sugars, protein etc) throughout the entire plant.
Definition
False
Term
Applying iron fertilizer to a pin oak showing iron chlorosis will correct the deficiency.
Definition
False
Term
Because nitrogen is water solule it is prone to leavhing and runoff.
Definition
True
Term
Blueberries are plants that prefer a pH 4.0. This pH is much lower than post garden plants prefer.
Definition
True
Term
Spring time is the best time of the year to lower a soil's pH by incorporating sulphur.
Definition
False
Term
Stomata are pores in the underside of a plant leaf that allows water vapor to exit the leaf.
Definition
True
Term
Plants utilize light in the red, yellow and blue portion of the visible spectrum.
Definition
False (only red and blue)
Term
Topsoil, the upper layer of a soil profile, contains the most organic matter and microorganisms.
Definition
True
Term
Potassium deficiency causes the underside of leaves to turn purple.
Definition
False
Term
Spinach and lettuce are common crops in a fall garden.
Definition
True
Term
C4 plants are most efficient at photosynthesis because they have higher rates of photorespiration.
Definition
False (bad photosythesis, yes high rates of photorespiration)
Term
Gaden mums produce large numbers of small sized flowers.
Definition
True
Term
Carbohydrates, in the form of sugar, are produced via photosynthesis.
Definition
True
Term
Air content of a soil is inversely related to the water content.
Definition
True
Term
Organic fertilizers are made from synthetic products.
Definition
False
Term
Blue baby syndrome is caused by excessive magnesium in the drinking water. This tainted water prevents blood from absorbing oxygen normally.
Definition
False
Term
Subsoils have little organic matter, few mineral nutrients and the parent material is slightly weathered.
Definition
True
Term
Deer will not eat tulips growing in a home landscape.
Definition
False
Term
Soil microbes are beneficial to plants because they break down the inorganic matter that's in the soil and release the nutrients that were bound inside the inorganic matter.
Definition
False
Term
Spring is the best time of the year to lower a soi's pH by incorporating sulfur.
Definition
False
Term
Parthenocarpic fruits form without pollination and hence they are seedless.
Definition
False
Term
Nitrogen is the central atom in a chlorophyll molecule and that's why plants deficient in nitrogen appear chlorotic.
Definition
False
Term
A ribbon test is a quick way to estimate the amount of clay present in the soil.
Definition
True
Term
Because cations are positively charged ions and clay particles are negatively charged the two are attracted to eachother and help reduced nutrient loss due to percolation.
Definition
True
Term
A starter fertilizer solution, which is high in potassium, is used to help vegetable transplants root quickly into the soil.
Definition
False (phosophorus helps roots)
Term
Because essential plant nutrients are water soluble, root hairs inadvertently uptake these nutrients when water is absorbed.
Definition
True
Term
Interveinal chlorosis means a leaf is green but the veins will be yellow.
Definition
False
Term
Sphagnum peat moss is a good organic amendment for clay soils because it has a high water holding capacity, has a moderate rate of decomposition and is acidic in pH.
Definition
True
Term
Micronutrients are also called trace elements.
Definition
True
Term
Phosphorous is frequently deficient in Missouri soils because it is highly water soluble and leavhes away.
Definition
False
Term
Micronutrients availability increases as soil pH increases.
Definition
False
Term
Chelated iron is commonly sprayed on a plant's foliage to correct an iron deficiency.
Definition
True
Term
Plants prefer nitrogen in the ammonium form.
Definition
False
Term
Organic mulches are a great way to utilize waste products.
Definition
True
Term
Newly created composting systems can be inoculated with compost starter, garden soil or unprocessed cow manure as a means of introducin the needed bacteria.
Definition
True
Term
The youngest foliage on a tre with be the first to display mobile nutrient deficiency symptoms.
Definition
False check
Term
The pH of garden soil can be decreased by incorporating aluminum sulfate; howerver, this product can cause aluminum toxicity.
Definition
True
Term
Spring flowering bulbs should be planted in the garden by Labor day.
Definition
False, by thanksgiving
Term
A soil that has a pH of 7.8 is too alkaline for most garden plants.
Definition
True
Term
Water percolates slowly through clay soils.
Definition
True
Supporting users have an ad free experience!