Organisation Flashcards
What are the products of digestion used for ?
To build new carbohydrates, proteins, lipids.
Some used in respiration.
Why is bile alkaline ?
To neutralise the hydrochloric acid from stomach.
Alkaline conditions increase fat breakdown.
What controls the heart rate ?
Group of cells located in the right atrium.
Benign tumours are… Contained in …
Growths of abnormal cells… A membrane.
Malignant tumours…
Invade neighbouring tissues
Spread to different parts of body in blood
Form a secondary tumour
How are epidermal cells adapted ?
Thin and transparent
How is the xylem adapted ?
Strengthened by lignin
Dead cells with no ‘end’
How is the phloem adapted ?
Elongated cells
With pores at the end for product of photosynthesis to move through one cell to another
Double circulatory system
In one circuit the blood goes through the heart twice
