Answer:
I think true statement is A.
Explanation:
D. E: photosynthesis; D: cellular respiration
Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent.
In the light reactions, occuring within the thykaloid, and stroma of the chloroplasts, water supplies the pigment chlorophyll with replacement electrons for the ones removed from photosystem II. Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions. NADP and NADPH are integral to the dark reactions, or Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules.
Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate (through the process of glycoysis). The electron transport chain, in which oxygen functions as the terminal electron acceptor, occurs in both plants and animals. Respiration includes:
- Glycolysis: occurs in the cytoplasm 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules.
- The Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
- The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.
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Echinoderms have radial symmetry.
Answer:
There are several different ways to name it, but I always go by absorption, digestion, and metabolism/breakdown.
Explanation:
Absorption is the uptake of minerals, vitamins, and nutrients from your diet and your ingestion of water or other liquids. Absorption primarily takes place in the small intestine and anything that isn't necessary and vital for human life is then excreted through the urinary tract as urine and the remainder of the digestive tract as waste/feces.
Digestion is the process that occurs in the digestive tract which breaks down all food intake by mechanical and enzymical (stomach/gastric acid) processes in order to provide the body with all of the nutrients and minerals it needs to survive.
Metabolism is the breakdown of acids, fats, and enzymes within the organs in order to maintain life and promote production of energy. A healthy diet, cardiovascular exercise for 4-5 days a week, and maintaining good health in general is best to maintain a high metabolism and produce the most energy.
