Summer Exam - Cheat Sheet Flashcards
Can you draw a diagram of the male and female reproductive systems?
Can you describe the main stages of the menstrual cycle?
Day 1 to 5: If the woman is not pregnant the lining of the uterus breaks down and leaves the body through the vagina. This is known as menstruation or sometimes called a period.
• Day 6 to 13: The uterus wall begins to buid up again to prepare for a baby
• Day 14: An egg is released from the ovary. This is known as ovulation.
• Day 15 to 28: the lining of the uterus remains in the place and if pregnancy has not occurred will break down once again on day one.
Can you bulletpoint the stages of labour?
The first stage is the dilation of the cervix, the second stage is the birth of the baby, and the third stage is the delivery of the placenta.
What is meant by the term dominant and recessive?
Although two genes are present only one will be expressed, or displayed in the organism. This gene is called the dominant gene. The other gene is called the recessive gene
What are gametes?
Gametes are an organism’s reproductive cells.
What is DNA?
DNA is the hereditary material in humans and almost all other organisms.
What are genes?
Genes are strands of DNA in chromosomes.
What are chromosomes made up of?
- Protein
- DNA
Can you explain how someone with blue eyes could be born to two brown eyed parents using a punnet square?
Describe Ohms Law.
The voltage and the current in a circuit are directly proportional. This means that they both increase at the same rate. We call this Ohm’s Law.
How we can measure Ohms Law
volts = amps x ohms, or V = A x Ω.
V
——
I | R
What is current?
Current is a measure of the amount of charge, or electrons that travel around a circuit. It is measured in amperes (A).
What is voltage?
Voltage is a measure of the energy the electrons have. It is measured in Volts (V).
What is resistance?
Resistance is a measure of the opposition to current flow in an electrical circuit. It is measured in Ohms (Ω).
What is power?
Power is a measure of how much energy an electrical device converts in one second. The unit of power is the Watt (W).