BTEC Applied Science Unit 1 Biology questions and answers

BTEC Applied Science Unit 1 Biology
questions and answers




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
Why do muscle cells contain many mitochondria? -
ANSWER-To provide large amounts of energy to the
muscle for contractions

, Give the term used to describe the stripy bands seen
within skeletal muscle under a microscope - ANSWER-
Striations

Myofibril is made up of dark and light bands. What are the
names given to these dark and light bands? - ANSWER-
Dark band = A-band
Light band = I-band

Which line is present in the middle of the A-band? -
ANSWER-M line

Which line is present in the middle of the I-band? -
ANSWER-Z line


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