False; unlike blood, lymph does not move to and from the heart.
DNA replication is conducted by the polymerase II enzyme within eukaryotic cells. This enzyme incorporates nucleotides that are complementary to the leading strand and then to an RNA strand that starts the replication process.
When the 3' _ >5' exonuclease detects a mismatched pair of bases, it cuts and removes those bases. The polymerase II then fits the correct base pair and continues the replication process.
In response to the claim, you could refer to a principle of cell theory, stating that cells are the fundamental unit of life, and critically, all cells arise from pre-existing living cells.
Streptomycin, which is derived from certain bacteria and fungi, is utilized to combat bacterial infections (prokaryotic), including tuberculosis and mycobacterial infections. This antibiotic disrupts protein synthesis in prokaryotes as it impacts the operation of 70S ribosomes, which are essential for the production of proteins. It has no effect on eukaryotic cells since it does not attach to their ribosomes, hence leaving their protein synthesis unaffected.
Answer:
The answer is A) Active transport involves moving substances against the concentration gradient.
Explanation:
Facilitated diffusion refers to the process where other molecules assist in the transport across the cellular membrane. This usually involves integral proteins that aid in moving a molecule. Since facilitated diffusion occurs from areas of higher concentration to lower concentration, it is considered a passive transport method.
In contrast, active transport refers to the process of moving molecules from a location of lower concentration to one of higher concentration, which requires energy to occur.
