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BTEC Applied Science Unit 1 Biology Questions And Answers With Verified Solutions 100% Correct!!!
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BTEC Applied Science Unit 1 Biology Questions And Answers With Verified Solutions 100% Correct!!!
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BTEC Applied Science Unit 1 BiologyQuestions And Answers With Verified
Solutions 100% Correct!!!
Name the 3 different types of epithelial tissue - ANSWER✔✔Squamous epithelial
tissue
Columnar epithelial tissue
Endothelium tissue
Describe squamous epithelial tissue - ANSWER✔✔A lining tissue that is only one
cell thick. Made from squamous cells that form a smooth, flat layer.
Where can squamous epithelial tissue be found? - ANSWER✔✔As it is a lining
tissue it can be found inside alveoli
How can squamous epithelial tissue be damaged by smoking? -
ANSWER✔✔Inflammation and scarring of tissue
Tissue gets thicker and produces more mucus
Diffusion pathway is increased
What does COPD stand for? - ANSWER✔✔Chronic Obstructive Pulmonary
Disorder
What symptoms can be displayed from COPD? - ANSWER✔✔Breathlessness
Persistent coughing
Phlegm build up
, What conditions are considered part of COPD? - ANSWER✔✔Emphysema
Bronchitis
Asthma
Describe columnar epithelial tissue - ANSWER✔✔Column shaped ciliated cells
and goblet cells held in place by a membrane
What is meant by the term ciliated cell? - ANSWER✔✔A cell covered in cilia.
Cilia are fine, hair like projections that 'sweep' away pathogens from the lungs
How does smoking affect ciliated columnar tissue? - ANSWER✔✔The cilia can
break, lessening the 'sweeping action' overall. This leads to a build-up of mucus.
What is the role of the goblet cell? - ANSWER✔✔To produce mucus
How do goblet cells and ciliated cells work together? - ANSWER✔✔Goblet cells
produce mucus that sticks to pathogens, whilst cilia 'sweep' away the mucus
containing the pathogens
How does smoking affect the alveoli? - ANSWER✔✔Reduces the elasticity so
pockets of air form that cannot be expelled
Where is endothelial tissue found? - ANSWER✔✔Lining the inside of blood
vessels, lymphatic vessels and the heart
Describe the structure of endothelial tissue - ANSWER✔✔A layer of flattened
cells, one layer thick
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