Answer:
Neither the solute nor the solvent (water) will move in any direction
Explanation:
Concentration of salt with in the cell = 2%
Concentration of salt of the solution in which the cell is placed is 2%
Since there is no change of concentration of salt with in cell and outside the cell. Hence, there will be no net movement of solute or solvent.
Answer:
b) Operons for coordinated gene expression
Explanation:
Operon refers to a unit of genetic function and is mainly found in bacteria and phages. An operon consists of a promoter, an operator, and a coordinately regulated cluster of structural genes. The genes of an operon code for proteins or enzymes that mostly function in a common pathway. It allows a single promoter and operator or any other regulatory sequence to regulate the expression of functionally related genes.
For instance, lac operon consists of three structural genes that code for the enzymes involved in the catabolism of lactose sugar. The operon is expressed only when lactose is available in the medium. This pattern of gene regulation is not found in eukaryotes.
Answer:
Experimentation
Explanation:
Experimentation are practical activities carried out in a controlled way of asking and answering unbiased questions, support or refute a tentative answer (hypothesis). Experimentation is a process in scientific method in which one or more variables are consciously manipulated and the effect of that manipulation on other variables is observed. The variable which is being manipulated by the researcher is said to be the independent variable while the dependent variable is the change in behavior measured by the researcher.
Answer:
enzymes loose their form in both unsuitable ph and temprature.
Explanation:
at very high tempratures enzyme molecules denatures due to high speed movements, at low tempratures enzymes works too slow to be useful enough.
low ph solotions contain lot of H+ and high ph solutions have few H+ , and the number of these H+ ions have polar effects on enzymes. some Enzymes like pepsin works perfect in acidic environment ( ph=2) while others might work at high ph or average ph( like Trypsin works well at ph=7).
Answer:A copper atom has 35 neutrons
