Biology Past Paper - 2018 Flashcards
(7 cards)
1
Q
What causes the symptoms of salmonella?
A
Bacteria multiplies in the gut, releasing toxins that cause damage to the lining of the gut.
2
Q
Why would someone with HIV be more prone to contracting disease and be less able to fight it off?
A
Weakened immune system. HIV destroys white blood cells.
3
Q
Different types of metabolic reactions in cells
THREE
A
synthesis of lipids,
synthesis of proteins
synthesis of carbohydrates
4
Q
Name FIVE substances transported in the blood plasma
A
- Electrolights
- Gases
- CO2
- Urea
- Proteins
5
Q
Which veins/arteries carry deoxygenated blood
A
Vena Cava & Pulmonary artery
6
Q
THREE differences between veins and arteries
A
- Wall thickness
- size of lumen
- valves/no valves
7
Q
A
