A) Carbon dioxide concentration and oxygen levels B) Diffusion resistance of stomatal pores and the humidity gradient C) Light intensity and photosynthesis rate D) Atmospheric pressure and leaf temperature only
A) Water use efficiency B) Photosynthetic rate (A) C) Transpiration rate (E) D) Stomatal conductance (g)
A) Photosynthesis rate B) Partial pressure of water C) Plant conductance D) Atmospheric pressure
A) Internal and external CO2 concentrations B) Energy input and energy output C) Partial pressures of water in the leaf and ambient air D) Evaporation and atmospheric pressure
A) Temperature and wind speed B) Gravity and magnetic field changes C) Soil pH levels and mineral content D) Light intensity and concentrations of water vapor, CO2, and ozone
A) Sub-stomatal CO2 pressure B) Intrinsic water use efficiency C) Water use efficiency D) Stomatal conductance
A) A = (Ca - Ci) / 1.6P B) A = EP / (ei - ea) C) A = (ei - ea)g / P D) A = (Ca - Ci)g / 1.6P
A) Spectrometers B) Humidity chambers only C) Photosynthesis systems D) Barometers
A) Internal concentration of water vapor B) Constant internal pressure C) Sub-stomatal partial pressure of CO2 D) Conductance of carbon dioxide
A) g = (ei - ea) / P B) g = EP / (ei - ea) C) g = P / (E(ei - ea)) D) g = (ei - ea) / EP
A) Cellular atmospheric mechanism B) Crassulacean acid metabolism C) Carbon accumulation method D) Constant air modification
A) At dawn only B) At night C) During the afternoon D) Continuously throughout the day
A) Cellulase B) PEPcase C) RuBisCO D) Amylase
A) Because they do not need light B) To increase water intake C) To minimize photorespiration D) To prevent oxygen absorption
A) A proton pump B) Water diffusion C) An electrical charge D) Cellulose microfibrils
A) Potassium (K+) B) Sodium (Na+) C) Calcium (Ca2+) D) Magnesium (Mg2+)
A) Citrate B) Malate C) Pyruvate D) Glucose
A) Abscisic acid (ABA) B) Ethylene C) Auxin D) Gibberellin
A) It fluctuates rapidly B) It remains constant C) It increases D) It decreases
A) Endoplasmic reticulum B) Lysosome C) Golgi apparatus D) Ribosome
A) They open B) They divide C) They close D) They thicken
A) Nuclei B) Vacuoles C) Mitochondria D) Chloroplasts
A) Gas exchange B) Root protection C) Nutrient absorption D) Reproduction
A) Epidermal hairs B) Xylem cells C) Mesophyll cells D) Guard cells
A) Transpiration B) Respiration C) Diffusion D) Photosynthesis
A) Argon B) Nitrogen C) Methane D) Carbon dioxide
A) Monocotyledons B) Liverworts C) Dicotyledons D) Vascular plants
A) Amphistomatous B) Stomatal-complex C) Hypostomatous D) Epistomatous
A) PEPcase B) Lipase C) Amylase D) RuBisCO
A) 600 ppm B) 200 ppm C) 850 ppm D) 425 ppm
A) Mouth B) Pore C) Air D) Leaf
A) 80 μm B) 50 μm C) 100 μm D) 20 μm
A) Liverworts B) Monocotyledons C) Trees D) Mosses
A) Epistomatous B) Amphistomatous C) Submerged D) Hypostomatous
A) Waxy cuticles B) Protodermal cells C) Meristemoids D) Conceptacles
A) Trichomes B) Waxy cuticle C) Root hairs D) Vascular tissue
A) Procambium B) L2 tissue layer C) L1 tissue layer D) Ground meristem
A) Meristemoid B) Guard mother cell C) Pavement cell D) Trichome
A) Symmetrical B) Mitotic C) Asymmetrical D) Meiotic
A) Too Many Mouths B) EPF1 C) Speechless D) YODA
A) SPCH B) EPF1 C) ERL D) TMM
A) Promotes development B) Increases the size of guard cells C) Represses development D) Causes clustering
A) SPCH B) TMM C) EPF1 D) YODA
A) Chalk B) Julien Joseph Vesque C) Charles Darwin D) Metcalfe
A) Star-celled B) Parallel-celled C) Cross-celled D) Unequal-celled
A) Brassicaceae B) Ebenaceae C) Poaceae D) Solanaceae
A) Caryophyllaceous type B) Rubiaceous type C) Ranunculaceous type D) Cruciferous type
A) Cucurbitaceae B) Molluginaceae C) Ebenaceae D) Poaceae
A) Cruciferous type B) Rubiaceous type C) Caryophyllaceous type D) Graminoid type
A) Paracytic B) Diacytic C) Anomocytic D) Anisocytic
A) Four B) Five C) Six D) Two
A) Cucurbitaceae B) Tilia C) Ebenaceae D) Rubiaceae
A) Polocytic B) Pericytic C) Hypocytic D) Desmocytic
A) A star B) A horseshoe C) A lens D) A sausage
A) Paracytic B) Actinocytic C) Gramineous D) Anisocytic
A) A parallel line B) A cross C) A horseshoe D) A circle
A) Hypocytic B) Hexacytic C) Actinocytic D) Diacytic
A) A flat surface area B) A protective outer shell C) A tube-like vein system D) A chamber-like structure
A) Trichomes or wax accumulations B) Pollen grains C) Bacteria colonies D) Water droplets
A) Only in tropical plants B) No C) Only in desert plants D) Yes
A) Nerium oleander B) Oak tree C) Sunflower D) Moss
A) Algae B) Conifers C) Roses D) Ferns
A) Cloud forest B) Salt marsh C) Arid desert D) Coastal beach
A) Tulip B) Hakea C) Cactus D) Grass
A) Zeaxanthin B) Chlorophyll C) Xylem D) Stomata
A) Abscisic acid B) Coronatine C) Sucrose D) Potassium
A) Chlorophyll B) Coronatine C) Zeaxanthin D) Abscisic acid
A) Chlorophyll B) Sucrose C) Zeaxanthin D) Abscisic acid
A) Osmotic closure B) Hydropassive closure C) Photoperiodic closure D) Hydroactive closure
A) Wheat B) Arabidopsis C) Corn D) Soybeans
A) 50% B) 75% C) 96% D) 85%
A) Oryza sativa B) Triticum aestivum C) Zea mays D) Arabidopsis thaliana
A) The response is largely controlled by genetics B) The response is controlled by soil temperature C) The response is purely environmental D) The response is entirely random
A) 50–60% B) 20–40% C) 5–20% D) 1–5%
A) 10–25% B) 30–50% C) 5–10% D) 50–70%
A) 30–50% B) 10–25% C) 50–70% D) 5–10%
A) Chemical fertilizer application B) Increased water irrigation C) Artificial gene editing D) A feedback mechanism |