Answer:
Four groups: no drug, placebo drug, 300 mg of new drug, 500 mg of new drug.
Answer:
- Bill was swimming for 30 minutes, 3 days per week and recently increased that to 45 minutes, 3 days per week: D. Duration
- Sonya was participating in one aerobics class per week and recently increased that to two aerobics classes per week: C. Frequency
- Erin was walking on the treadmill at a rate of 3 miles per hour for 60 minutes and recently was able to increase her rate to 4 miles per hour for 60 minutes: B. Intensity
- Chris used to do 30 minutes of cardio at 50% of his max heart rate 2 days per week and has gradually increased his performance such that now he is exercising for 60 minutes at 80% of his max heart rate 4 days per week: A. Progression
Explanation:
Duration refers to the amount of time accumulated in a specific physical exercise program (in this case, swimming), which is measured in a given time unit like minutes or hours. Moreover, the frequency can be defined as the occurrence/practice of a given physical activity (in this case, aerobics classes) that is repeated at specific intervals of time. Intensity refers to the speed/workload of a given exercise or training session. Intensity can be divided into two forms: 1-absolute intensity, which is expressed as a percentage of an individual's maximal aerobic capacity, and 2-relative intensity, which is the percent of one repetition maximum for each exercise. Finally, progression is the rate of increase of the intensity, frequency and duration of physical activity from the initial to the maintenance stages (the progression stages include initial, improvement and maintenance stages). Progression is dependent on diverse factors inherent to the individual, i.e., the tolerance to exertion, the objective of the physical exercise, and his/her age.
Answer: true
Explanation: schedule V drugs are lower potential for abuse the 1234 preparations containing limited quantities of certain narcotics, schedule 1 is the most addictive
Cells respond to environmental effects through signal transduction, which promotes healthy cell growth and normal cell function.
<h3>Why is the signal transduction step necessary?</h3>
The reason why after a signal binds to a signal receptor, we need the next step is as follows:
- For the purpose of triggering an appropriate cellular response, living creatures have evolved a vast range of intricate procedures to send signals from the outside to the inside.
- These molecular pathways can develop flaws that result in a variety of ailments, including diabetes, cancer, and psychotic conditions.
- It is the mechanism by which a cell responds to the stimuli it receives from the environment by diffusion of those signals to its internal compartments.
- Signal transduction is the process by which a cell translates a given signal or external stimulus into another signal or specific response.
- First, a particular receptor on the cell's membrane or cytoplasm must be activated by a signaling molecule (also known as a ligand). transduction.
- Ligand-receptor binding is extremely specific; it can be compared to a lock and key.
- Second messengers are chemicals that enable intracellular signal amplification after a signal has been received.
- A ligand's interaction to a receptor may result in the production of hundreds of second messenger molecules, which may then change thousands of effector molecules to cause a variety of reactions.
- Signal transduction enables cells to perceive, interpret, and react to various environmental signals, enabling them to carry out their usual functions.
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