Hormones — final check

1. compare

A grain of dust hits a girl's eye and she blinks. Later, while she watches a scary film, she feels her heart racing until the end of the scene. Compare the two responses by their speed of action and their duration of effect.

Speed of action

Duration of effect

2. determine

A skateboarder falls off her board. The table shows her heart rate before and after the fall. Use the table to determine (a) the time to the peak and (b) the first time in the table at which her heart rate is back within 5 beats per minute of the resting rate.

(a) Time to the peak: ______________ unit ________

(b) First time within 5 beats per minute of resting: ______________ unit ________

3. explain

Sweat is made by sweat glands in the skin. It flows along a narrow tube onto the surface of the skin, where it evaporates and cools the body. Explain, using each part of the description of a hormone, why sweat is not a hormone.

4. identify

A student is chased by a wasp. Which hormone is secreted, and how does each of three quantities in the student's body change? Match each to its answer.

Write the number of the matching option.

1. insulin
2. decreases
3. stays the same
4. adrenaline
5. increases

• Hormone secreted: ______
• Breathing rate: ______
• Heart rate: ______
• Pupil diameter: ______

5. describe

Supplement: describe the role of adrenaline in the control of metabolic activity.

6. identify

The diagram shows four endocrine glands, labelled E, F, G and H. Identify each lettered gland and the hormone it secretes.

Write the number of the matching option.

1. kidney – adrenaline
2. testis – oestrogen
3. ovary – oestrogen
4. liver – insulin
5. pancreas – insulin
6. adrenal gland – adrenaline
7. testis – testosterone

• E: ______
• F: ______
• G: ______
• H: ______

7. identify

Supplement: which row names the gland that secretes glucagon and another hormone in the syllabus that the same gland secretes?

Circle one answer.

• A
• B
• C
• D