A5 Revision - Birds

A5 Revision

Birds

Lesson Objectives

• RAG rate A5 topics

• Recap A5 content

• Identify areas for self-directed revision

Poll

How confident do you feel about A5?

1 - not confident at all

3 - I know some, but there are areas that are difficult

5 - very confident!

• 1

• 2

• 3

• 4

• 5

A5 content (Birds)

• Structure and function of male and female reproductive systems

• Effect of photoperiod and temperature on seasonal breeding

• Locations of fertilisation and egg production

• Structure of an egg

• Embryo development - extraembryonic membranes only

• Effect of temperature and turning on egg incubation and length of incubation period

Multiple Choice

Which part of the oviduct secretes albumen (the white)?

• Infundibulum

• Magnum

• Isthmus

Multiple Choice

Where is the shell pigment added?

• Magnum

• Isthmus

• Uterus

Fill in the Blanks

The egg leaves the reproductive tract through what?

Multiple Choice

Which ovary is present?

• Left

• Right

Multiple Choice

Where is sperm stored?

• Testes

• Epididymis

• Vas deferens

Multiple Choice

Do chickens have an external penis?

• Yes

• No

Fill in the Blanks

Which bird has an external penis?

Open Ended

What is an egg shell made of?

Multiple Select

Which parts of the egg provide nutrition?

• Yolk

• Albumen

• Chalaza

Extraembryonic membranes

• Chorion - surrounds the embryo and allows for gas exchange

• Amnion - forms a sac which helps to protect the embryo and help hold the amniotic fluid which acts as a shock absorber

• Allantois - develops a large circulatory system which allows for respiratory, excretory and digestive functions

• Yolk sac - digestive functions and is used as a food source for the embryo and the chick once hatched

Multiple Choice

Which extra-embryonic membrane allows for gas exhange?

• Allantois

• Chorion

• Yolk sac

Multiple Choice

Which extra-embryonic membrane also provides nutrition to the chick once hatched?

• Yolk sac

• Chorion

• Allantois

Multiple Choice

How long does an egg spend in the isthmus?

• 15 minutes

• 1 hour

• 21 hours

Multiple Choice

Where are the inner and outer membranes added?

• Isthmus

• Cloaca

• Uterus

Self-Directed Topics

• Incubation periods

• Factors affecting egg production

• Incubation