Biology- B5 Part D

Across

• 1. Treatment for kidney failure: ... comes from dead or alive person. ... can be rejected by body, but are cheaper (6, 10)
• 4. Treatment for kidney failure: Filters blood exactly like a kidney does. Substances diffuse across partially permeable membrane until the levels are balanced. The sessions last about 3-4 hours, 3 times a week. It's expensive for the NHS, (8)
• 5. Excess ... can be stored as glycogen in liver and muscles, if not it's used in metabolism and exercise. The level of ... must be kept steady. Changes are controlled by pancreas using insulin and glucagon in a negative feedback way. (7)
• 6. Stage 1: Day 1- menstruation starts, uterus lining breaks down for 4 days. Stage 2: Day 4-14- Uterus lining builds up again, full of blood vessels. Stage 3: Day 14- Ovulation where egg develops and is released. Stage 4: Day 14-28- Wall is maintained (9, 5)
• 7. 4 hormones: Produced in ovaries, Causes lining of uterus to grow, Stimulates release of LH (9)
• 10. ... affects blood glucose levels. Type 1- Pancreas produces little or no insulin, and can kill person. Type 2- person becomes resistant to their own insulin. Being overweight can result in type 2 ... (8)