y10

What is the smallest unit of life?

A cell.

What are all living organisms made of?

Cells.

What is a eukaryotic cell?

A cell with a nucleus.

What is a prokaryotic cell?

A cell without a nucleus.

What does the nucleus do?

Contains DNA and controls cell activities.

Where does aerobic respiration happen?

In the mitochondria.

What is the function of ribosomes?

To make proteins.

What is mitosis?

Cell division for growth and repair.

What are stem cells?

Unspecialised cells that can become specialised.

What is diffusion?

Movement of particles from high to low concentration.

What is osmosis?

Diffusion of water through a partially permeable membrane.

What is active transport?

Movement of particles against a concentration gradient using energy.

What organ pumps blood around the body?

The heart.

What do arteries do?

Carry blood away from the heart.

What do veins do?

Carry blood to the heart.

What do capillaries allow?

Diffusion of substances.

What do enzymes do?

Speed up chemical reactions.

What is a pathogen?

A microorganism that causes disease.

What is a virus?

A pathogen that reproduces inside cells.

How do bacteria reproduce?

By splitting into 2.

What do white blood cells do?

Defend the body against pathogens.

What does a vaccine do?

Provides immunity by triggering an immune response.

What is an atom?

The smallest part of an element.

What charge does a proton have?

Positive (+1).

What charge does an electron have?

Negative (-1).

What charge does a neutron have?

No charge (0).

What is the atomic number?

The number of protons.

What is the mass number?

The number of protons and neutrons.

What are isotopes?

Atoms of the same element with