A Research Group Has Discovered an Organism with Cells That

question 58

Multiple Choice

A research group has discovered an organism with cells that contain a previously undescribed organelle. They do some tests on the isolated organelle to see if it is involved in any major metabolic reactions. To do this, they incubate these organelles for a period of time and determine changes in the amount of various substances in the suspending solution. The results follow. $$\begin{array} { | l | l | l | l | l | } \hline \text { glucose } & \mathrm { CO } _ { 2 } & \mathrm { O } _ { 2 } & \mathrm { ATP } & \mathrm { NADH } \\\hline \text { no change } & \text { no change } & \text { decrease } & \text { increase } & \text { decrease } \\\hline\end{array}$$ Based on this analysis, which metabolic process do you conclude is taking place in this organelle?

• A)pyruvate oxidation
• B)citric acid cycle
• C)glycolysis
• D)electron transport chain/oxidative phosphorylation
• E)glycolysis and the citric acid cycle

---

Definitions:

Anxiety Level

The degree or intensity of feelings of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.

Frustration-aggression Hypothesis

A psychological theory suggesting that aggression is often the result of frustration, which occurs when an individual's goal-directed behavior is blocked.

Aggressive Responses

Behaviors aimed at causing harm or injury to another person or object, often as a reaction to perceived threats or frustration.

Goal

An objective or desired outcome that an individual or group aims to achieve through purposeful action.