V4 Cell division/Reproduction 4

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

Welcome!

Please put your phone away and have the following ready on your table:

• Macbook/computer
• Textbook
• California condor assignment from Tuesday (if you brought it with you)

Program for today

• Questionnaires
• Discuss answers condor assignment (+ meiosis worksheet)
• 5 minute break
• What are the (parts of) the reproductive organs? Discussion + practise

Hand in worksheet meiosis

Questionnaires

Please fill out the two questionnaires on the Classroom:

• one about your interaction with and impression of me as a teacher (anonymous)
• one about different activities during class (not anonymous)
• you get until 12.10 for this

California condor assignment

- How could an egg cell that has not been fertilised by sperm develop into diploid offspring?

- Why can female condors only give birth to male condors?

Gametogenesis: when?

Gametogenesis: when?

Spermatogenesis:

- starts during puberty

- keeps occurring for entire life

- millions of sperm produced per day

- the process of producing a sperm cell takes about 2-3 months

Oogenesis:

- starts in the womb but stays in prophase I until puberty

- stops during menopause (usually 40s-50s)

- only a few cells mature every menstrual cycle

Gametogenesis: where?

Individual work:

• Complete the worksheet reproductive organs
• Check your answers to the meiosis worksheet
• Done? "Hardopdenkopdracht"/cell division puzzles/worksheet recognising phases