Three Lab Groups Carried Out an Experiment to Identify the Concentration

question 39

Multiple Choice

Three lab groups carried out an experiment to identify the concentration of sucrose in six solutions. Each unknown contained one of the following sucrose concentrations: 0.0 M, 0.2 M, 0.4 M, 0.6 M, 0.8 M, and 1.0 M. Cubes of sweet potato (1 cm³) were soaked for 24 hours in each solution and weighed to determine the change in mass. Each data entry represents the average of three sample replicates expressed as percent change in mass following a 24-hour soak in the unknown solutions.
$$\begin{array} { | l | l | l | l | } \hline \text { Unknown } & \text { Percent change in } & \text { Percent change in } & \text { Percent change in } \\& \text { Graup 1 } & \text { Guss } & \text { mass } \\\hline \text { A } & 6.6 & 7.8 & \text { Group 3 } \\\hline \text { B } & 3.1 & 3.7 & 7.5 \\\hline E & - 2.7 & - 3.5 & 2.9 \\\hline \text { D } & 0.7 & 0.5 & - 2.5 \\\hline \text { E } & - 11.6 & - 12.3 & 1.1 \\\hline\text {F } & - 5.2 & 6.2 & - 12.6 \\\hline\end{array}$$
Based on the data provided, the intracellular molarity of dissolved solutes in sweet potato cells is approximately ________.

• A) 0.2 M
• B) 0.4 M
• C) 0.6 M
• D) 0.8 M

Understand the symptoms and diagnosis criteria for major depressive disorder and related conditions.

Identify and apply appropriate nursing interventions and communication strategies for patients with major depressive disorder.

Recognize the side effects of antidepressants and other medications used to treat major depressive disorder.

Demonstrate knowledge of therapeutic techniques and treatments, including electroconvulsive therapy (ECT) and cognitive-behavioral therapy (CBT).

---

Definitions:

Bariatric Surgery

A group of surgical procedures aimed at weight loss by modifying the stomach and/or intestines.

Set Point

Set point theory suggests that an individual's body weight is maintained around a biologically predetermined point, making significant long-term weight loss challenging.

Long Term Weight Loss

The sustained reduction of total body mass due to efforts in dieting, exercise, or lifestyle changes over an extended period.

Overjustification Effect

A psychological phenomenon where external rewards can reduce a person's intrinsic motivation to perform a task.