4.1 Sexual reproduction in animals (female)

Question 1

What are is the order of follicle in an ovary?

Answer 1

Primary follicle, secondary follicle, Graafian follicle

Question 2

How can a secondary follicle be identified?

Answer 2

It has an antrum

Question 3

What occurs halfway through the menstrual cycle?

Answer 3

Ovulation

Question 4

What does the corpus luteum secrete?

Answer 4

Progesterone

Question 5

What does progesterone do?

Answer 5

Lots of progesterone= everything stays in
Low progesterone= period

Question 6

What part of Oogenesis occurs before birth?

Answer 6

Oogonia divide by mitosis and enlarge to produce primary oocytes, matures
Primary oocyte begins Meiosis 1 but stops at prophase 1

Question 7

What part of Oogenesis happens at puberty?

Answer 7

• One of follicles which has primary oocyte matures, producing Secondary oocyte and polar body
  -Secondary oocyte goes Meiosis 2 but stops at Metaphase 2
  -Ovum is formed but Meiosis 2 only complete if fertilisation occurs

Question 8

What does Lactobacillus secrete?

Answer 8

-Lactic acid
-Maintains low pH to inhibit growth of other microbes

Question 9

What are the cells surrounding the secondary follicle called?

Answer 9

Granulosa cells

Question 10

What are the cells surrounding a follicle after ovulation called?

Answer 10

Corona Radiata

Question 11

What separates the follicle and granulosa cells?

Answer 11

Zona pellucida