Answer:
Protist
Explanation:
Protist are prokaryotic organisms
Answer:
The following are the sections which can be seen in a food label:
1) Product dates:
Under this section look for the production date and the expiry date ( best before). The production date tells when the food was made. The expiry date tells the date before which the food has to be used.
2) Ingredient list:
The list of all the ingredients used for the preparation of the food is mentioned.
3) Nutrition Facts Label
At the top of this label, we will see the total number of servings and size of the container. Thus table shows some key nutrients and the percent of them present in the container of food. It also shows the calories of each. Percent Daily Value (DV) shows the percentage of each nutrient present.
The nutrient label are important to an athlete because he/she needs to take a diet which is capable of filling us nutrient requirements. Athletes tend to perform well when they have a balanced diet. To get a balanced diet, they need to look at the nutritional values.
Answer:
The correct option is B. Activation energy
Explanation:
The activation energy is usually used to designate the minimum energy necessary for a given chemical reaction to occur, that is, the basic requirement for the reaction to proceed.
For a reaction to occur between two molecules, they must collide in the correct orientation and have a minimum amount of energy. As the molecules approach, their electron clouds are rejected. This requires energy (activation energy) and comes from the heat of the system, that, is, from translational, vibrational energy, etc of each molecule. If the energy is sufficient, the repulsion is overcome and the molecules are close enough for a rearrangement of the bonds of the molecules.
The concept of Activation energy was introduced by Arrhenius in 1889. Arrhenius suggested that molecules must prossess a minimum amount of energy to react. That energy comes from the kinetic energy of the clliding molecules. Kinetic energy serves to cause reactions, but if the molecules move very slowly, the molecules will only bounce when they collide with other molecules and the reaction does not happen. In order for the molecules to react, they must have a total kinetic energy that is equal to or greater than a certain minimum value of energy called activation energy.
Answer:
Genes called "molecular switch" or master genes have the purpose of control when other genes are expressed (option A).
Explanation:
Master gene is so named because it has the function of controlling the behavior of other genes, organizing their functions and regulating when they can be expressed.
The name of molecular switch is synonymous with the master gene, since its activation determines the genetic regulation necessary to establish cell differentiation and even the determination of the sex of some species.
The other options are not correct because:
<em> B. Master genes do not </em><u><em>determine the organization of the genome</em></u><em>
.</em>
<em> C. </em><u><em>Regulation of cell metabolism</em></u><em> depends of substances as hormones and enzymes.
</em>
<em> D. </em><u><em>The rate of translation</em></u><em> does not depend on the activity of master genes.</em>
