Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Biology

Reproduction

QuestionAnswer
What is the fusion of male and female gametes called? Fertelisation
What process of cell division is undergone in sexual reproduction? meiosis
What process of cell division is undergone in asexual reproduction? mitosis
Gametes have how many chromosomes? 23
When two gametes fuse, how many chromosomes does the resulting cell have? 46
How many gametes are involved in asexual reproduciton? none
How do bacteria reproduce? Binary fission
Describe how meiosis occurs 4 HAPLOID cells are produced through two divisions. The cells are NOT genetically identical
Describe how mitosis occurs
What are the four stages of the menstrual cycle? 1. Menstruation, 2. uterus lining builds up again, 3. egg develops and is released, 4. wall is waintained
Where is FSH produced? pituitary gland
Where is oestrogen produced? ovaries
Where is LH produced? pituitary gland
Where is progesterone produced? ovaries by remains of follicle after ovulation
What does FSH do? causes an egg to mature in one of the ovaries and stimulates ovaries to produce oestrogen
What does oestrogen do? Causes lining of uterus to grow and stimulates release of LH (also inhibits FSH)
What does LH do? stimulates release of an egg at day 14 of menstrual cycle
What does progesterone do? maintains lining of uterus during second half of cycle. When levels fall, the lining breaks down (also inhibits LH and FSH)
What does a placenta do? Lets blood of embryo and mother run close, allowing the exchange of food, oxygen and waste
What does the amnion membrane do? surrounds embryo and is full of amniotic fluid
What does amniotic fluid do? protects embryo against knocks or bumps
Where is the egg fertilised? In the fallopian tube
What three things do seeds need for germination? Water, oxygen, a suitable temperature
When a seed starts to germinate, where does it get its energy from? It gets glucose for respiration from its own food source
In the germination experiment, which is the control tube? The tube with all correct conditions
What is the source, role and effect of adrenaline? Source: adrenal glands, Role: readies body for fight or flight, Effect: increases heart rate, blood flow to muscles and blood sugar level
What is the source, role and effect of insulin Source: pancreas, Role: helps control blood sugar level, Effect: stimulates liver to turn glucose into glycogen
What is the source , role and effect of oestrogen? Source: ovaries, Role: supports pregnancy, Effect: controls menstrual cycle and promotes secondary sexual characteristics
What is the source, role and effect of FSH? Source: pituitary gland, Role: female sex hormone, Effect: causes egg to mature in ovary. Stimulates production of oestrogen
Created by: JoeMather
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards