Explanation:
A substance containing a large number of atoms which are covalently bonded, is called a giant molecule or a giant covalent lattice. There are four examples of molecules made from non-metals which form giant structures. They are silicon, silicon dioxide and two forms of the element carbon called diamond and graphite polymers are a different kind of large molecule.
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In creating products from trees with modern technology, only half of the trees can be used is false.
We all recognize that trees offer many useful products lumber for building production, furnishings, paneling, cabinetry, and floors, as well as paper of all sorts. however, tree merchandise moves ways beyond timber and paper. You are probably surprised at simply what number of tree merchandise you operate every day, and where they're located.
These encompass rayon garb, cellophane paper, cigarette filters, difficult hats, and sandwich bags. extra tree byproducts include chemical compounds extracted from bushes. these chemical compounds are used to make dye, pitch, menthol, and scented oils. By getting rid of carbon dioxide and returning oxygen, timber help preserves the stability between these gases within the surroundings, replenishing the oxygen removed through organisms and doing away with the carbon dioxide released via organisms.
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Answer:
The effects of iron deficiency on cell culture growth, cell respiration, mitochondrial oxidative properties, and the electron transport chain were studied with suspension-cultured sycamore (Acer pseudoplatanus L.) cells. Iron deprivation considerably decreased the initial growth rates and limited the maximum density of the cells. Under these conditions, the cells remained swollen throughout their growth. The absence of iron led to a steady decline in the uncoupled rate of O2 consumption. When the uncoupled rate of O2 uptake closely approximated the respiratory rate, the cells began to collapse. At this stage, the level of all the cytochromes and electron paramagnetic resonance-detectable Fe-S clusters of the mitochondrial inner membrane were dramatically decreased. Nevertheless, it appeared from substrate oxidation measurements that this overall depletion in iron-containing components solely disturbed the functioning of complex II, whereas neither complexes I, III, or IV, nor the machinery involved in ATP synthesis, was apparently impaired in iron-deficient mitochondria. However, our results suggest that the impairment of complex II resulted in a strong reduction of the overall capacity of the mitochondrial electron transport chain, which was responsible for determining the rate of endogenous respiration in sycamore cells. Finally, this situation led to a depletion of various energy metabolites that could contribute to the premature cell death.
Explanation:
Hi lovely! Here are your scientific questions that are testable:
Does the type of liquid affect how fast an ice cube melts?
Does changing the temperature of water affect the buoyancy of an egg?
Does the thickness of the wire affect the power of the circuit?
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