Answer:
The correct option is 3. "At pH 6.5 the enyzme is 50% active"
Explanation:
For the titratable group to be protonated and cause the enzyme to be in the active state, it needs to have gained a hydrogen cation (H+). In order for that to happen, there must be enough hydrogen cations in the environment of the enzyme, and hence, an acidic pH is required in this case.
The eggs of the fluke are passed into water supplies from feces and urine of infected people. After hatching the parasite actively swims and invades the body of a snail, usually by penetrating through the snail's foot. The parasite requires the presence of certain species of snails (e.g., Oncomelania, Biomphalaria, Bulinus) to transform (and multiply) itself into an infective stage, called cercaria.
Answer:
long term heart promblems
long term lungs and liver
Explanation:
Answer:
F plasmid.
Explanation:
Conjugation may be defined as the transfer of the genetic material from one bacterial cell to the another cell by the direct surface contact. This illustrate the phenomena of the horizontal gene transfer.
The plasmid is the extra chromosomal DNA present in the bacteria and can replicate independently of the chromosomal DNA. F plasmid or fertility plasmid is generally transfer during the conjugation process from F negative cells to F positive cells.
Thus, the correct answer is option (c).
