Key Concepts in Plant Physiology: Terms and Definitions, Quizzes of Agricultural engineering

Download Key Concepts in Plant Physiology: Terms and Definitions and more Quizzes Agricultural engineering in PDF only on Docsity! TERM 1 true DEFINITION 1 Embolisms in vascular tissue can be removed when the transpiration rate is low at night TERM 2 true DEFINITION 2 Light has both a wave and a particle TERM 3 true DEFINITION 3 the most common measure of the effect of temperature on aerobic respiration is Q10 TERM 4 true DEFINITION 4 rubisco is a key regulatory enzyme in the Calvin Benson Cycle TERM 5 true DEFINITION 5 no physical quantity regulates and stimulates the development of plants more strongly than light TERM 6 true DEFINITION 6 the leaf boundary layer has a direct impact on transpiration rate TERM 7 false DEFINITION 7 Bundle sheath cells allow O2 and CO2 to freely diffuse across their cell TERM 8 false DEFINITION 8 Aerobic respiration takes place in the chloroplasts of all cells TERM 9 true DEFINITION 9 C4 plants evolved so that the initial uptake of CO2 occurs in a different cell within a leaf than the cell where the Calvin - Benson Cycle occurs. TERM 10 false DEFINITION 10 root hairs are extension of epidermal cells that decrease the surface area contact between root and soil TERM 21 False DEFINITION 21 All light that is intercepted by a leaf is used for photosynthesis TERM 22 True DEFINITION 22 the rate of photosynthesis directly influences the rate at which plant growth can occur TERM 23 False DEFINITION 23 Vertical light intensity gradient increases over a short vertical distance TERM 24 false DEFINITION 24 Photosynthetically active radiation (PAR) is identical to the light that is perceived by human eye. TERM 25 False DEFINITION 25 During photosynthesis electrons are temporarily stored in DNA. TERM 26 true DEFINITION 26 the rate of aerobic respiation can depend on temperature TERM 27 true DEFINITION 27 Carbohydrates are required for the synthesis of all other macromolecules in plants. TERM 28 true DEFINITION 28 light energy (or intensity) is measured as the number of photons in a given area over time. TERM 29 true DEFINITION 29 mowing height directly controls the amount of carbohydrates available to turfgrass plants for growth. TERM 30 true DEFINITION 30 C3 plants evolved so that the calvin-benson cycle is restricted to bundle sheath cells TERM 31 Photorespiration DEFINITION 31 Creates energy only occurs during the night is extremely important in C4 plantsNon of the above TERM 32 Photorespiration DEFINITION 32 Rubisco is an enzyme that regulates TERM 33 Sugars from photosynthesis DEFINITION 33 are consumed to support respirationare used to support growth can be stored for later useall of the above TERM 34 Light DEFINITION 34 Has a particle naturean inverse amount of energy as its wave lengtha wave natureall of the above TERM 35 Importance of the "z Scheme" DEFINITION 35 As a representation of the transfer of electrons from H2O to NADP+As a representation of the stepwise transfer of energy from H2O to PSII to PSI and Finally to NADP+ TERM 46 C3 turfgrasses have higher photosynthesis rates than C4 when DEFINITION 46 atmospheric CO2 concentration is greater than 400 ppm TERM 47 true DEFINITION 47 a symptom of drought stress is vertical leaf orientation TERM 48 false DEFINITION 48 rubisco is a key regulatory enzyme in the citric Acid Cycle TERM 49 false DEFINITION 49 resistance to drought stress only involves the ability of a plant to avoid stress TERM 50 true DEFINITION 50 aerobic respr TERM 51 false DEFINITION 51 Anoxia is defined as a lack of O2 in leaf tissue TERM 52 true DEFINITION 52 non-functioning roots injure shoots by accelerating ethylene production TERM 53 true DEFINITION 53 plant stress is defined as having negative impact on turfgrass TERM 54 false DEFINITION 54 plants that are resistant to high temp. have a high proportion of unsaturated lipids in their membranes TERM 55 true DEFINITION 55 bundle sheath cells in C4 plants are impermeable to both O2 and CO2 TERM 56 false DEFINITION 56 vapor pressure deficit never differs between the leaf and the air due to transpiration TERM 57 true DEFINITION 57 the rate of water flow within plants occurs in response to tension that is created by transpiration TERM 58 true DEFINITION 58 carbohydrates are required for the synthesis of all other macromolecules in plants TERM 59 true DEFINITION 59 the amount of energy in each photon of light is inversely proportional to its wavelength. TERM 60 true DEFINITION 60 drought tolerance refers to the ability of turfgrass plant to experience the stress but survive