Everything Flashcards
What does a male release during sexual intercourse?
Sperm cells are released
On day 14 of the menstrual cycle what happens?
The egg cell is released from the Ovaries.
What is the process called when the egg is released ?
Ovulation
Where is sperm made in the male’s reproductive system?
The testes
During puberty what happens to a male’s face?
Hairs start to grow and spots start to appear.
What is the menstrual cycle?
It is a cycle which gets the woman ready for fertilisation and pregnancy. It lasts for 28 days.
What happens to a male’s penis during puberty?
It grows bigger and grows hairs
What is a sperm cell?
It is a male sex cell that is released during sexual intercourse and has a purpose to fertilise the egg cell
What is puberty?
The reproductive system of a child is not mature. It needs to change as a boy or girl develops into an adult, so the system is fully working, the time when this happens is called puberty.
What is the placenta?
The placenta is an organ responsible for providing oxygen, anti-bodies and nutrients, and removing waste substances.
What is the vagina?
The vagina is a muscular tube that leads from the cervix to the outside of the woman’s body. A man’s penis goes into the vagina during sexual intercourse.
What is an embryo?
The fertilised egg divides to form a ball of cells, this is called an embryo.
What is ovulation?
Ovulation is the process where the egg is released from the Ovaries, if not fertilised it will die.
Is the testes part of the male or female reproductive system.
Male
Is the ovary part of the male or female reproductive system?
Female
How many parents do you have in asexual reproduction?
1
What is the top of the wave called?
The crest
What is the bottom of the wave called?
The trough
What part of your ear is damaged by loud noises?
It damages the small hairs in the cochlea
What does the eardrum do?
When it receives the waves it sends them on as vibrations to the ossicles.
What is the amplitude of a wave?
From the crest to the rest position line. Itshows how loud the noise is
What is the frequency of a wave?
The frequency of a wave can be measured from the crest to the next crest or the trough to the next trough. It shows the pitch of the sound being heard
What does the cochlea do?
When it receives the vibrations the tiny hairs turn the vibrations into electrical waves and sends them onto the auditory nerve.
What are all living organisms made up of?
Cells which are the building blocks of life.
Cell membrane
This is a barrier around the cell. It controls what can come in and out of the cell.
Cytoplasm
This is a jelly like substance where the chemical reactions in a cell take place.
Nucleus
This controls the cell and contains genetic material. Genetic information is needed to make new cells.
Chloroplast
This is where photosynthesis happens. Chloroplasts contain a green substance called chlorophyll, which traps energy transferred from the sun.
Vacuole
This contains a watery liquid called cell sap. It keeps the cell firm.
Cell wall
This strengthens the cell and provides support. It is made of a tough fibre called cellulose, which makes the wall rigid.
What is a specialised cell?
A specialised cell is a cell that has learnt to change their shape and structure so that they can do their particular job they need to do.
Name five specialised cells and how they have changed their shape and structure to help carry out their particular job.
Nerve cell-long and thin and have connections at each end to connect to other nerve cells.
Red blood cells-they contain haemoglobin, a red pigment that connects to oxygen, also have a disc like shape which has a larger surface area for carrying oxygen.
Sperm cells-
