Answer:
1. backbone 2. phosphate group 3. deoxyribose sugar 4. covalent
Explanation:
Metaphase. During this stage of mitosis, the chromosomes line up in the middle of the cell along the equator. Each chromosome attaches itself to a spindle fiber.
Answer:
The initial step in the formation of an aminoacyl-tRNA is activation of the amino acid by reaction with ATP
Explanation:
In protein synthesis, the first step involves the formation of an aminoacyl-tRNA. This reaction is catalyzed by the the Mg²⁺-dependent enzymes known as aminoacyl t-RNA synthetases and occurs in two steps.
The first step of the reaction of the formation of an aminoacyl-tRNA is the activation of the amino acid by the attachment of an AMP molecule formed from the hydrolysis of ATP to AMP and pyrophosphate. The aminoacyl adenylate intermediate is bound to the enzyme in this initial step. Subsequently, in the second step of the activation of the amino acid, the aminoacyl adenylate intermediate is then transferred to its specific tRNA. The pyrophosphate formed in the first step is hydrolyzed to 2 phosphate molecules by a pyrophosphatase.
The overall reaction step is illustrated below:
Amino acid + tRNA + ATP -----> aminoacyl-tRNA +AMP + 2Pi
Answer:
See the explanation below
Explanation:
From the balanced equation of photosynthesis:
6 moles of CO2 is required to produce 6 moles of oxygen.
Assuming that 5.2 g of CO2 reacts with water,
mole of CO2 = mass/molar mass = 5.2/44.01 = 0.1182 mole
Hence,
0.1182 mole of CO2 will yield 0.1182 mole of O2.
Mass of oxygen that will be produced from 5.2 g of CO2:
= molar mass of O2 x mole of O2
= 0.1182 x 16
= 1.9 g of O2.
<em>Note: Because the mass of CO2 is in two significant figure, the final answer was adjusted to be in two significant figure. The mass of oxygen can be computed depending on the mass of CO2 involved.</em>