Rosie Week 2 Flashcards
Where is FSH produced and what is its role?
It is produced by the pituitary gland
It causes the egg to mature in the ovaries
It stimulates the ovaries to produce oestrogen
Where is oestrogen produced and what is its role?
It is produced by the ovaries
It thickens and maintains the uterus lining
It stimulates the pituitary gland to release LH
Where is LH produced and what is its role?
It is produced by the pituitary gland
It triggers the release of a mature egg
Where is progesterone produced and what is its role?
It is produced by the ovaries
It maintains the lining of the uterus
What is in the oral contraceptive pill and what effect does it have?
It contains hormones to inhibit the production of FSH so that no eggs mature
What hormone is contained in the implant contraceptive and what does it do?
The skin implant slowly relaxes progesterone to inhibit the maturation and release of eggs
List as many methods of contraception as possible?
Oral contraceptive, skin implant, or skin patch, condoms, diaphragms, the coil, spermicidal agents, abstaining from intercourse during ovulation, surgical methods of male or female sterilization
How can hormones be used to treat infertility?
A woman can receive FSH or LH in a ‘fertility drug’ to stimulate the production and release of a mature egg
Explain how IVF is conducted.
- the mother is given FSH and LH to stimulate the maturation and release of several effa
- the eggs are collected from the mother and fertilized by sperm from the farther
- the fertilized eggs develop into embryos
- one or 2 embryos are inserted into the mothers uterus
What are the potential issues with IVF?
It can lead to multiple pregnancies, it is emotionally and physically stressful, the success rates are not high
Where is adrenaline produced and what effect does it have?
It is produced by the adrenal glands
It increases the heart rate and boost the delivery of oxygen glucose to the brain and muscles to prep for a fight or flight
Where is thyroxine produced and what does it do?
Thyroxine is produced by the thyroid gland
It stimulates the metabolic rate
What is the role of gibberellins?
They are important in initiating seed germination
What is the role of ethene?
Ethene controls cell division and the ripening of fruits.
What impact do auxins have on roots?
High concentrations of auctions in roots cause cells to grow less
What impact do auxins have in stems?
High concentrations of auxin I’m stems cause cells to grow more
What are the uses of auxins?
Weed killers, promoting growth in a tissue culture (a plant cutting)
What are the uses of ethene?
To control fruit ripening during transport
What are the uses of gibberellins?
And seed dormancy, increase fruit size, promote flowering
