Answer:
If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. We can estimate the distance of the lightning by counting how many seconds it takes until we hear the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.
Explanation:
I'm not entirely sure if I'm correct with this, but I'll try...
Adolescence has to do something with mentality, or how the brain works. It occurs from things like family issues, depression, anxiety, substance abuse, (substance: drugs) sexual abuse, violence, things like that. Men are more likely to suffer from it (I think).
Welp, I've thrown in my two cents, sorry if It's incorrect, at least I tried, lol.
Answer: <u>Option 4; Oxygen gains electrons and hydrogen to form water.
</u>
Respiration is a process where glucose is used and energy is released stored in this molecule. Oxygen is used during respiration as well and it gains the electrons and hydrogen to form water. And, gain of electrons is an oxidation reaction. So answer is option 4.
Since, oxygen is consumed during respiration, option 1 is incorrect.
Loss of electrons is reduction, so option 2 is also incorrect.
Glucose is used in respiration, thus option 3 is incorrect.
Answer:
-20 kcal/mol (It stays the same)
Explanation:
Enzymes will reduce the Gibbs free energy of activation, but will neither increase or decrease the free energy of reaction.
Enzymes means of activity is by decreasing the activation energy (Ea or ΔG✳) for a reaction. This in turn raises the reaction rate.
Free energy of reaction
= free energy of product - free energy of substrate
The free energy of the product remains constant even without the enzyme. Hence, the enzyme would show no effect on the free energy of the reaction.
The attached image shows the effect of changes in enzyme concentration on the free energy.
Answer:
The correct option is E.
Explanation:
Protein synthesis in living cells is divided into two distinct stages, which are transcription and translation. Transcription occurs in the nucleus where mRNA is formed from DNA. The mRNA then moved into the cytoplasm, where the process of translation takes place. Translation occurs in 5 stages and the accuracy of this process depend on the bonding of the anti-codon to the codon and the attachment of amino acids to tRNA.
tRNA (transfer RNA) plays a vital role in the translation process. It has very specific structures, which have the ability to bind to specific amino acids at one end and an mRNA molecule at the other end. This arrangement ensures that accuracy is maintained by making sure that each amino acid is carried to the appropriate point in the protein that is been synthesized based on the information in the mRNA.
