The First Line of Defence

Pregunta 1 de 11

2

Selecciona la opción correcta de los menús desplegables para completar el texto.

( Keratinised, Hardened, Epithelial, Cytoplasmic, Keronised ) Cells are the strong, outermost layer of skin cells in the ( epidermis, epithelium, dermis, deeper tissues ).
They stop pathogens from getting into the body through the skin and get replaced often by new cells.

Explicación

Pregunta 2 de 11

3

In a ❌ Cell, the ❌ hardens to become ❌. We now call this the Keratinised Cell.

Arrastra y suelta para completar el texto.

Keratinocyte

Cytoplasm

Keratin

Kerocyte

Therocyte

Plasma

Cell membrane

Fribrinogen

Explicación

Pregunta 3 de 11

1

When the skin is damaged, pathogens find it easier to get in.
The body needs a fast way to repair, forming blood clots and scabs.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 4 de 11

2

When damaged cells and torn capillaries are exposed to ❌, they release enzymes like ❌ to signal to the protein ❌ to enter the broken tissue.

Arrastra y suelta para completar el texto.

air

water

thrombin

glucose

lipase

fibrinogen

fibrin

keratin

Explicación

Pregunta 5 de 11

2

Rellena los espacios en blanco para completar el texto.

If enough clotting agent is present, the protein becomes that allows red blood cells to be "tied up" and trapped, forming a clot. The clot dries, becoming a protective scab until the skin cells can regrow.

Explicación

Pregunta 6 de 11

2

Rellena los espacios en blanco para completar el texto.

Some parts of the body are unfortunately more open to pathogens. One of these areas is the eye.
Luckily, the eye has ways of getting rid of foreign bodies.
First, capture the pathogen, and then an enzyme called , found in tears, destroys it.

Explicación

Pregunta 7 de 11

1

The respiratory system, leading to the ❌ is another part of the body that needs a lot of protection thanks to the open spots of the ❌ and nose.

Arrastra y suelta para completar el texto.

lungs

mouth

brain

heart

eye

Explicación

Pregunta 8 de 11

4

Two types of cells protect the respiratory system.
❌ cells release sticky mucus from their vacuoles. They carry ❌ proteins that become mucus upon excretion.
❌ Cells are covered in many ❌ (tiny, hair-like structures) that beat back and forth to remove mucus from the respiratory tract.

Arrastra y suelta para completar el texto.

Goblet

Ciliated Epithelial

Cilia

Mucin

Epithelia

Mucusin

Explicación

Pregunta 9 de 11

2

What is the role of the mucus? (Tick AT LEAST ONE option)

Selecciona una o más de las siguientes respuestas posibles:

To trap pathogens and then carry them to the lungs.
To trap pathogens so that they can be sneezed or coughed out of the system.
To trap pathogens and then carry them to the stomach for digestion.
To excrete enzymes that break down pathogens.

Explicación

Pregunta 10 de 11

4

Stomach (Gastric) Acid Contains:

Selecciona una o más de las siguientes respuestas posibles:

Hydrochloric Acid
Citric Acid
Sodium Chloride
Various Enzymes
Potassium Chloride
Ethanoic Acid
Vanadium Chloride

Explicación

Pregunta 11 de 11

2

Selecciona la opción correcta de los menús desplegables para completar el texto.

When we ingest food, we also often ingest pathogens like salmonella.
Gastric acid excretes ( enzymes, bases, alkalies, antibodies ) to destroy these pathogens.
The ( high PH, low PH, high temperature, low temperature ) of the stomach acids can also help to destroy pathogens and speed up enzyme activity.

	Creado por Ablazej P hace más de 6 años

GCSE (Health & Medicine) Biology Test sobre The First Line of Defence, creado por Ablazej P el 05/02/2018.

The First Line of Defence

The First Line of Defence

Pregunta 1 de 11

Selecciona la opción correcta de los menús desplegables para completar el texto.

Explicación

Pregunta 2 de 11

In a ❌ Cell, the ❌ hardens to become ❌. We now call this the Keratinised Cell.

Arrastra y suelta para completar el texto.

Explicación

Pregunta 3 de 11

When the skin is damaged, pathogens find it easier to get in. The body needs a fast way to repair, forming blood clots and scabs.

Selecciona uno de los siguientes:

Explicación

Pregunta 4 de 11

When damaged cells and torn capillaries are exposed to ❌, they release enzymes like ❌ to signal to the protein ❌ to enter the broken tissue.

Arrastra y suelta para completar el texto.

Explicación

Pregunta 5 de 11

Rellena los espacios en blanco para completar el texto.

If enough clotting agent is present, the protein becomes that allows red blood cells to be "tied up" and trapped, forming a clot. The clot dries, becoming a protective scab until the skin cells can regrow.

Explicación

Pregunta 6 de 11

Rellena los espacios en blanco para completar el texto.

Some parts of the body are unfortunately more open to pathogens. One of these areas is the eye. Luckily, the eye has ways of getting rid of foreign bodies. First, capture the pathogen, and then an enzyme called , found in tears, destroys it.

Explicación

Pregunta 7 de 11

The respiratory system, leading to the ❌ is another part of the body that needs a lot of protection thanks to the open spots of the ❌ and nose.

Arrastra y suelta para completar el texto.

Explicación

Pregunta 8 de 11

Two types of cells protect the respiratory system. ❌ cells release sticky mucus from their vacuoles. They carry ❌ proteins that become mucus upon excretion. ❌ Cells are covered in many ❌ (tiny, hair-like structures) that beat back and forth to remove mucus from the respiratory tract.

Arrastra y suelta para completar el texto.

Explicación

Pregunta 9 de 11

What is the role of the mucus? (Tick AT LEAST ONE option)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 11

Stomach (Gastric) Acid Contains:

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 11

Selecciona la opción correcta de los menús desplegables para completar el texto.

Explicación

When the skin is damaged, pathogens find it easier to get in.
The body needs a fast way to repair, forming blood clots and scabs.

Some parts of the body are unfortunately more open to pathogens. One of these areas is the eye.
Luckily, the eye has ways of getting rid of foreign bodies.
First, capture the pathogen, and then an enzyme called , found in tears, destroys it.

Two types of cells protect the respiratory system.
❌ cells release sticky mucus from their vacuoles. They carry ❌ proteins that become mucus upon excretion.
❌ Cells are covered in many ❌ (tiny, hair-like structures) that beat back and forth to remove mucus from the respiratory tract.