GCSE Biology - The Menstrual Cycle & Puberty #60

The video tutorial provides an overview of puberty, focusing on the menstrual cycle. It explains the role of reproductive hormones like testosterone and estrogen in developing secondary sexual characteristics. The menstrual cycle is detailed, highlighting its four stages: menstruation, rebuilding of the uterus lining, ovulation, and maintenance of the lining. The video also covers the roles of key hormones—estrogen, progesterone, LH, and FSH—and their interactions in regulating the cycle.

What triggers the development of secondary sexual characteristics during puberty?

• Reproductive hormones

• Dietary changes

• Environmental factors

• Physical exercise

Which stage of the menstrual cycle involves the breakdown of the uterus lining?

• Ovulation

• Menstruation

• Luteal phase

• Follicular phase

What is the primary role of estrogen in the menstrual cycle?

• Stimulate ovulation

• Maintain the uterus lining

• Stimulate the growth of the uterus lining

• Inhibit FSH

Which hormone is responsible for maintaining the uterus lining during the menstrual cycle?

• Estrogen

• FSH

• LH

• Progesterone

What is the role of FSH in the menstrual cycle?

• Stimulate the release of an egg

• Inhibit LH

• Stimulate the maturation of an egg

• Maintain the uterus lining

How does estrogen affect FSH levels during the menstrual cycle?

• Decreases FSH levels

• Increases LH levels

• Has no effect on FSH levels

• Increases FSH levels

What happens when progesterone levels drop in the menstrual cycle?

• FSH levels increase

• Ovulation occurs

• The uterus lining breaks down

• Estrogen levels rise