Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Stimulates dramatic stem growth} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Stimulates fruit ripening} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

Match the following hormones with their actions. More than one hormone can correspond to the same function.

$$\begin{matrix} \text{(1) growth hormone} & \text{A. Milk production}\\ \text{(2) thyroid-stimulating hormone} & \text{B. Cell division}\\ \text{(3) prolactin} & \text{C. Metabolic rate}\\ \text{(4) adrenocorticotropic hormone} & \text{D. Exerts action on gonads}\\ \text{(5) follicle-stimulating hormone} & \text{E. Controls secretion of adrenal cortex hormones}\\ \text{(6) luteinizing hormone}\\ \end{matrix}$$

Which two plant hormones produce opposite effects? A. auxins and ethylene B. auxins and cytokinins C. dormancy and germination D. dormancy and cotyledons

Complete the flowchart to show how steroid hormones act on a cell. Place the numbers for the steps in order. 1. Hormone binds to a receptor. 2. mRNA directs protein synthesis. 3. Hormone-receptor complex binds to DNA. 4. Hormone enters cell. 5. Hormone-receptor complex enters nucleus. 6. Transcription forms mRNA.

Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Promotes cell elongation} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Causes petals and leaves to drop} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

When a uranium atom inside the reactor of a nuclear power plant is hit by a neutron, it splits (fissions), releasing energy and some new neutrons. The mathematically expected number of new neutrons per fission is 2.3.

Use the probability in the previous part and the fact that there are 2.3 new neutrons per fission to calculate k, the expected number of new neutrons in the second generation caused by one neutron in the first generation.

Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Causes the enlargement of fruits} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

When a uranium atom inside the reactor of a nuclear power plant is hit by a neutron, it splits (fissions), releasing energy and some new neutrons. The mathematically expected number of new neutrons per fission is 2.3.

If each generation takes 0.001 s, how many neutrons would you expect there to be after 1 s? Does this answer surprise you? This is what makes atomic bombs explode!

The ripening of fruit is stimulated by the presence of ____. A. gibberellin. B. ethylene. C. auxin. D. cytokinin.

Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Stimulates new root growth} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

Match the action with the plant hormone that produces it. Hormones may be used more than once.

$$\begin{matrix} \text{Action} & \text{Plant Hormone}\\ \text{Causes apical dominance} & \text{A. abscisic acid}\\ & \text{B. auxin}\\ & \text{C. cytokinins}\\ & \text{D. ethylene}\\ & \text{E. gibberellin}\\ \end{matrix}$$

One suggested physiological cause of antisocial personality disorder is that people with this condition have:

a. lack of appropriate short-term memory related to ethical and moral rules, caused by deficient function in the hippocampus. b. lower-than-normal levels of stress hormones. c. increased synaptic pruning in the prefrontal cortex. d. heightened sensitivity to external stimuli in the amygdala