Answer:
The correct answer is <em>d. The nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose.</em>
Explanation:
The nucleoside triphosphates are components of DNA (deoxyribonucleic acid) so they are composed by a nitrogenous base (adenine, guanine, thymine or cytosine) and a deoxyribose sugar. In contraposition, ATP (adenosine triphosphate) is composed by the nitrogenous base adenine and a ribose sugar along with three phosphates groups. Unlike ribose, deoxyribose is a 5-carbon sugar which lack of an oxygen atom in C2 position.
Answer:
the nucleus is positive because it contains protons
Answer:
cis-hex-2-ene as produced as major product.
Explanation:
- In presence of (Lindlar catalyst) and , alkynes are reduced to alkene.
- molecules first adsorbed onto metal surface through chemisorption.
- When alkyne molecule comes in close proximity to the metal surface, H atoms add onto triple bond to reduce it to alkene.
- Two H atoms add onto alkyne from same face of metal. So, (Z) or cis-isomer of alkene is produced as a major product.
- Reaction mechanism has been shown below.
It depends on the gold bar. Gold bars come in all diferent sizes. However how much its worth depends on how big it is. Gold is $1,320 per ounce.