The First Line of Defence

Ablazej P
Quiz by , created almost 2 years ago

GCSE Biology (Health & Medicine) Quiz on The First Line of Defence, created by Ablazej P on 02/05/2018.

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Ablazej P
Created by Ablazej P almost 2 years ago
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Question 1

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

Question 2

Question
In a [blank_start]Keratinocyte[blank_end] Cell, the [blank_start]Cytoplasm[blank_end] hardens to become [blank_start]Keratin[blank_end]. We now call this the Keratinised Cell.
Answer
  • Keratinocyte
  • Cytoplasm
  • Keratin
  • Kerocyte
  • Therocyte
  • Plasma
  • Cell membrane
  • Fribrinogen

Question 3

Question
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.
Answer
  • True
  • False

Question 4

Question
When damaged cells and torn capillaries are exposed to [blank_start]air[blank_end], they release enzymes like [blank_start]thrombin[blank_end] to signal to the protein [blank_start]fibrinogen[blank_end] to enter the broken tissue.
Answer
  • air
  • water
  • thrombin
  • glucose
  • lipase
  • fibrinogen
  • fibrin
  • keratin

Question 5

Question
If enough clotting agent is present, the protein [blank_start]fibrinogen[blank_end] becomes [blank_start]fibrin[blank_end] 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.
Answer
  • fibrinogen
  • fibrin

Question 6

Question
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, [blank_start]eyelashes[blank_end] capture the pathogen, and then an enzyme called [blank_start]lysozyme[blank_end], found in tears, destroys it.
Answer
  • lysozyme
  • eyelashes

Question 7

Question
The respiratory system, leading to the [blank_start]lungs[blank_end] is another part of the body that needs a lot of protection thanks to the open spots of the [blank_start]mouth[blank_end] and nose.
Answer
  • lungs
  • mouth
  • brain
  • heart
  • eye

Question 8

Question
Two types of cells protect the respiratory system. [blank_start]Goblet[blank_end] cells release sticky mucus from their vacuoles. They carry [blank_start]mucin[blank_end] proteins that become mucus upon excretion. [blank_start]Ciliated Epithelial[blank_end] Cells are covered in many [blank_start]cilia[blank_end] (tiny, hair-like structures) that beat back and forth to remove mucus from the respiratory tract.
Answer
  • Goblet
  • Ciliated Epithelial
  • Cilia
  • Mucin
  • Epithelia
  • Mucusin

Question 9

Question
What is the role of the mucus? (Tick AT LEAST ONE option)
Answer
  • 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.

Question 10

Question
Stomach (Gastric) Acid Contains:
Answer
  • Hydrochloric Acid
  • Citric Acid
  • Sodium Chloride
  • Various Enzymes
  • Potassium Chloride
  • Ethanoic Acid
  • Vanadium Chloride

Question 11

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