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Year 7- Science > Everything > Flashcards

Everything Flashcards

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Biology 101 flashcards
1
Q

What does a male release during sexual intercourse?

A

Sperm cells are released

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2
Q

On day 14 of the menstrual cycle what happens?

A

The egg cell is released from the Ovaries.

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3
Q

What is the process called when the egg is released ?

A

Ovulation

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4
Q

Where is sperm made in the male’s reproductive system?

A

The testes

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5
Q

During puberty what happens to a male’s face?

A

Hairs start to grow and spots start to appear.

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6
Q

What is the menstrual cycle?

A

It is a cycle which gets the woman ready for fertilisation and pregnancy. It lasts for 28 days.

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7
Q

What happens to a male’s penis during puberty?

A

It grows bigger and grows hairs

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8
Q

What is a sperm cell?

A

It is a male sex cell that is released during sexual intercourse and has a purpose to fertilise the egg cell

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9
Q

What is puberty?

A

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.

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10
Q

What is the placenta?

A

The placenta is an organ responsible for providing oxygen, anti-bodies and nutrients, and removing waste substances.

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11
Q

What is the vagina?

A

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.

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12
Q

What is an embryo?

A

The fertilised egg divides to form a ball of cells, this is called an embryo.

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13
Q

What is ovulation?

A

Ovulation is the process where the egg is released from the Ovaries, if not fertilised it will die.

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14
Q

Is the testes part of the male or female reproductive system.

A

Male

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15
Q

Is the ovary part of the male or female reproductive system?

A

Female

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16
Q

How many parents do you have in asexual reproduction?

A

1

17
Q

What is the top of the wave called?

A

The crest

18
Q

What is the bottom of the wave called?

A

The trough

19
Q

What part of your ear is damaged by loud noises?

A

It damages the small hairs in the cochlea

20
Q

What does the eardrum do?

A

When it receives the waves it sends them on as vibrations to the ossicles.

21
Q

What is the amplitude of a wave?

A

From the crest to the rest position line. Itshows how loud the noise is

22
Q

What is the frequency of a wave?

A

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

23
Q

What does the cochlea do?

A

When it receives the vibrations the tiny hairs turn the vibrations into electrical waves and sends them onto the auditory nerve.

24
Q

What are all living organisms made up of?

A

Cells which are the building blocks of life.

25
Q

Cell membrane

A

This is a barrier around the cell. It controls what can come in and out of the cell.

26
Q

Cytoplasm

A

This is a jelly like substance where the chemical reactions in a cell take place.

27
Q

Nucleus

A

This controls the cell and contains genetic material. Genetic information is needed to make new cells.

28
Q

Chloroplast

A

This is where photosynthesis happens. Chloroplasts contain a green substance called chlorophyll, which traps energy transferred from the sun.

29
Q

Vacuole

A

This contains a watery liquid called cell sap. It keeps the cell firm.

30
Q

Cell wall

A

This strengthens the cell and provides support. It is made of a tough fibre called cellulose, which makes the wall rigid.

31
Q

What is a specialised cell?

A

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.

32
Q

Name five specialised cells and how they have changed their shape and structure to help carry out their particular job.

A

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-

Year 7- Science (3 decks)

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