the right option is :
D. requires a lot of energy.
Explanation:
because it leads to reduction of nitrogen, occurs in the presence of an enzymes.
Cellular nitrogen fixation Choose one: © A. leads to the oxidation of nitrogen. B. occurs in...
The primary source and sink of nitrogen is Choose one: 0 A. forests © B. soil. © C. the atmosphere. D. the ocean.
The sulfur cycle differs from the nitrogen cycle in that Choose one: A. only sulfate, and not nitrate, can be used as an electron acceptor at the end of an electron transport chain. B. only nitrogen, and not sulfur, exists in multiple oxidation states. C. only H2S, and not NH3, is a substrate for photolysis by phototrophs. D. prokaryotes play an important role in nitrogen cycling but not sulfur cycling,
1. [04] At the end of nitrogen fixation, the following reaction occurs: N2 + 8 + 2 Nike + H2 a. What product belongs in the blank? b. How many electrons (e s) are involved in the above reaction and where do they come from? c. What does “Mo" have to do with nitrogen fixation? d. For each nitrogen atom "fixed", 13 APTs are required? Show how is that number of ATPs calculated? 2. [04] The synthesis of the urea...
Which of the following is NOT TRUE for the fixation of CO2? Select one: a. requires ATP b. an example of a catabolic process c. occurs in the chloroplast stroma d. Calvin cycle is not dependent on light e. requires electrons
Cellular respiration occurs in a sequential order. This allows the cell to Select one: a. store oxygen in the process. b. maintain control over the mitochondria. c. efficiently breakdown glucose without damaging the cell. d. harness all the energy released at one time. e. produce the enzymes needed for cellular respiration very slowly.
40.Fatty acid synthase is an enzyme in the lipid metabolism pathway, that: A. occurs in the mitochondrion in animal cells, 2 nor Section A B. utilises NADH as an electron donor C) requires NADPH as a substrate. D. requires acetic acid as a substrate. E. consists of a single multifunctional protein in plants and bacteria. 41.One round of beta oxidation produces 1 molecule of acetyl-CoA from a saturated Acyl-CoA molecule. Which reducing equivalents are made in this process in which...
Which one of the following statements about glucose metabolism is correct? A. Prokaryotes do not perform Krebs cycle for respiration. B. Krebs cycle involves the breakdown of a molecule of pyruvate into 6 CO2, 8 NADH, 2 FADH2, and 2 GTP molecules. C. The enzyme that catalyzes the addition of phosphate molecules to ADP in order to make ATP is called a kinase. D. In both glycolysis and Krebs cycle, the energy released from the breakdown of molecules is being...
Which of the following is false concerning metabolic strategies with respect to pathways/final electron acceptors? A. Aerobic respiration = Glycolysis, Kreb's Cycle, ETC/oxygen B. Anaerobic Respiration = Glycolysis /Organic Compounds C. Fermentation = Glycolysis/ Organic Compounds D. Anaerobic respiration = Glycolysis, Kreb's Cycle, ETC/nitrate, carbonate, sulfate, etc. Comparatively greater energy is released when? A. Carbon dioxide is the final electron acceptor B. hydrogen is the final electron acceptor C. nitrate is the final electron acceptor D. oxygen is the final...
What is the oxidation state of sulfur in sulfur dioxide, So ? Select one: © a.-2 b. -1 O c. +2 O d. +4 o e. +1
Cellular respiration: Select one: O a occurs in the mitochondria O b. produces the most ATP during electron transport O c. breaks down molecules of glucose d. all of the above