Units of life flashcards test

27th January 2026

What is the Red blood cell for?

Red blood cells are responsible for transporting oxygen around the body.

What does the Palisade Cell do?

Palisade Cells absorb photosynthesis

What do Root Hair Cells do?

Absorb water and minerals from the soil

What does the nerve cell do?

Carries electrical messages around the body.

What are the three lenses for microscopes?

x4 ×10 × 40

What is Ovulation

When an egg cell is released from the ovaries

What does the Nucleus do?

Controls cell activities

What does the Cytoplasm do?

It’s where chemical reactions happen

What does the Cell Membrane do?

Allows substance in and out of cells

What does the Cell Wall do?

Supports the cell

What does the Vacuole do?

Stores water and sugar

What happens in the Chloroplast?

Photosynthesis

What does Cell theory state?

Cell theory states that every living thing is made of cells.

How long does pregnancy last for in humans?

40 weeks

What is the Placenta?

Where the foetus gets oxygen & food from the mother’s blood and gets rid of waste

What is a period?

When the lining of the uterus leaves the body.

What is Fertilisation?

This is when the egg and the sperm meet. This happens in the fallopian tube/oviduct. When this happens, it is called a fertilised egg.

What are microscopes used for?

Microscopes are used to magnify cells. They allow us to observe structures not visible to the naked eye, such as bacteria and organelles.

What helps to hold the baby in place?

The cervix.

Where does a baby develop?

In the uterus.

Where are Sperm cells made?

In the Testes.

What is the head of the male private part protected by?

The foreskin

How long does menstruation last for on average?

2-7 days

Why does the soft uterus lining have to become thick?

To prepare for a potential pregnancy, as it supports the implantation of a fertilized egg.

What happens about 14 days after menstruation starts?

Ovulation occurs, releasing an egg from the ovary.

What happens during menstruation (a period)?

The shedding of the uterine lining occurs, resulting in bleeding from the vagina, typically lasting 2-7 days. This process is part of the menstrual cycle.

How long does one cycle of the menstrual cycle take (on average)?

21 - 40 days.