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Which statement best describes the use of a catalyst in a fuel cell?
Wiki User
∙ 7y ago
It increases reaction rates
Wiki User
∙ 7y ago
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How do you write a sentence that uses 'catalyst' as noun?
Enzymes function as cell catalysts.
What term describes the difference in the concentrations of a substance across a cell's membrane?
concentration gradient
Which of these would BEST describe what would happen to a cell in a time of low nutrient supply?
The cell's growth would slow down significantly, leading to longer periods of time between cell division.
Where does ethylene come from?
Ethylene is a hydrocarbon that is commonly found in plants since its main function is being a hormone for plants. This product is also used to ripen fruits.
What waste product is produced by a hydrogen fuel cell?
Water, when pure hydrogen is used. If the likes of longer chain alkanes are used, (which they can be in some), CO2 is generated, however, they are still more efficient than standard cars. During generation of H2, the waste associated would be (at a guess) Oxygen which is not considered waste really, the poisoned catalyst (after time) be it a molecular catalyst or metal electrode surface, and I think the electrolytes after some time become problematic. In a molecular catalytic hydrogen generative system, you need a sacrificial donor molecule, such as triethylamine or triethanolamine.
What statement best describes a function of a nerve cell?
A nerve cell (neuron) transmits information from a part of the body to the brain
What statement best describes extracellular digestion?
large insoluble molecules are converted to small soluble molecules outside the cell
Scientists developing biotechnologies often use vectors in their research Which statement best describes what a vector is?
It carries a piece of DNA into a cell.
What statement best describes the role of the cell membrane?
The cell membrane controls what goes in an out of the cell.
What best describes the brain?
Cell
What statement best describes a change that would most likely be observed in the cells formed as s result of mitotic cell division?
One cell becomes two cells that have identical copies of DNA.
Which best describes the structure of the cell membrane?
Layered
What describes a single cell organism?
Unicellular best describes a one celled organism.
What best describes gamete?
a haploid cell produced by meiosis apex
Which cell best describes humans a eukaryote cell or a prokaryote cell?
Like all multicellular organisms, humans have eukaryotic cells.
What term best describes cell growing and dividing uncontrollably?
that is the meaning of cancer
Best describes where cellular respiration occurs?
In every body cell -apex
