sustainability and interdependance Flashcards
Food Security
The availability and access to sufficient, safe, and nutritious food to meet dietary needs for a healthy life.
Food Production
Food production methods that do not degrade the natural resources upon which agriculture depends, ensuring long-term productivity and food security.
Photosynthesis
The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. It involves the green pigment chlorophyll and generates oxygen as a by-product.
Photosynthetic Pigments
Molecules such as chlorophyll and carotenoids that absorb light energy used in photosynthesis.
Absorption Spectrum
A graph showing the different wavelengths of light absorbed by different pigments.
Action Spectrum
A graph that profiles the relative effectiveness of different wavelengths of radiation in driving a particular process, such as photosynthesis.
Carotenoids
Accessory pigments in plants that broaden the spectrum of colors that can drive photosynthesis by transferring the absorbed energy to chlorophyll.
ATP Synthase
An enzyme that creates ATP by using the energy from a flow of hydrogen ions across a membrane.
Photolysis
The process by which light energy splits water molecules during photosynthesis, producing oxygen, electrons, and hydrogen ions.
NADP (Nicotinamide Adenine Dinucleotide Phosphate)
A coenzyme that carries electrons and hydrogen ions in photosynthesis, forming NADPH.
RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)
The enzyme that catalyzes the first major step of carbon fixation in the Calvin cycle.
Calvin Cycle
A set of chemical reactions that take place in chloroplasts during photosynthesis, where carbon dioxide is fixed into glucose.
Glyceraldehyde-3-phosphate (G3P)
A three-carbon molecule formed in the Calvin cycle that is used to regenerate RuBP and synthesize glucose.
Plant Breeding
The science of changing the traits of plants to produce desired characteristics, used to support sustainable food production.
Plant Field Trials
Experiments carried out in natural conditions to evaluate the performance of different plant cultivars or treatments.
Inbreeding
Breeding of closely related individuals to produce offspring with desired traits but can lead to inbreeding depression due to increased homozygosity of deleterious alleles.
Inbreeding Depression
Reduced biological fitness in a population due to inbreeding, resulting in a higher occurrence of harmful recessive traits.
Crossbreeding
The process of breeding animals from different breeds to produce offspring with desired characteristics from both parents.
F1 Hybrids
Offspring resulting from the crossbreeding of two different inbred lines, often exhibiting increased vigor and yield.