Animal Coordination, Control and Homeostasis | Edexcel GCSE Biology, Foundation tier (1BI0)

Animal Coordination, Control and Homeostasis

121 questions
9 subtopics
Paper 2
Paper 2

Animal Coordination, Control and Homeostasis is examined in Paper 2, Biology 2.

It covers hormones, endocrine glands and homeostasis, the stages of the menstrual cycle and the roles of oestrogen and progesterone, hormonal and barrier contraception, thermoregulation and osmoregulation, insulin and type 1 diabetes, type 2 diabetes and body mass, the urinary system and urea, filtration and selective reabsorption in the nephron, and dialysis and kidney transplants.

Sample questions from Animal Coordination, Control and Homeostasis

Answer each one closed book first, then open the answer.

Hormones, endocrine glands and homeostasis

Which organ lying behind the stomach releases hormones that control blood glucose?

Show the answer
The pancreas.
The menstrual cycle and its hormones

Describe what happens to the lining of the uterus between about day five and day fourteen of the menstrual cycle.

Show the answer
It is repaired and grows thicker, building up a layer rich in blood vessels.
Hormonal and barrier contraception

Name three ways of giving hormonal contraception other than a daily pill.

Show the answer
By injection, by an implant placed under the skin, or by a patch worn on the skin.
Homeostasis and thermoregulation

Explain what happens to an animal cell when the blood plasma around it becomes too concentrated.

Show the answer
Water moves out of the cell by osmosis, so the cell shrinks and shrivels and cannot work properly.
Controlling blood glucose, and type 1 diabetes

Which organ is the body's main store of glycogen?

Show the answer
The liver.
Type 2 diabetes and body mass

What does body mass index estimate, and what two measurements is it calculated from?

Show the answer
It estimates whether a person's mass is healthy for their size, and it is calculated from body mass and height.
The urinary system and the production of urea

Which tube carries urine out of the body from the bladder?

Show the answer
The urethra.
The nephron, filtration and the effect of ADH

Explain why proteins and blood cells stay in the blood during filtration.

Show the answer
Their molecules and cells are too large to pass through the tiny gaps in the capillary wall.

The 9 subtopics

One subtopic is one session. Work down the list.

Subtopic	What it covers	Questions
Hormones, endocrine glands and homeostasis	Hormones as chemical messengers carried in the blood to target organs with specific receptors, the pituitary, thyroid, pancreas, adrenal glands, testes and ovaries and what they release, homeostasis and the changes it responds to, and receptors, coordination centres and effectors.	15
The menstrual cycle and its hormones	The length and stages of the menstrual cycle, menstruation, the thickening of the uterus lining and ovulation around day 14, what happens to the lining if the egg is not fertilised, oestrogen from the ovaries thickening the lining, and progesterone maintaining it until its level falls.	8
Hormonal and barrier contraception	How oestrogen and progesterone in hormonal contraception prevent pregnancy, pills, injections, implants and patches, condoms and diaphragms as barrier methods, the advantages and disadvantages of each, and what perfect-use and typical-use effectiveness figures show.	14
Homeostasis and thermoregulation	Thermoregulation and why enzymes fail when the body is too hot or too cold, osmoregulation and animal cells in dilute or concentrated solutions, the hypothalamus and temperature receptors, the dermis and epidermis, sweating and why humidity slows it, hair erector muscles, and shivering.	18
Controlling blood glucose, and type 1 diabetes	How the pancreas monitors blood glucose and releases insulin to lower it by storing glucose as glycogen, why levels rise after a meal and fall in exercise, and the cause, onset, symptoms and insulin treatment of type 1 diabetes, including why insulin is injected and doses are matched to meals.	14
Type 2 diabetes and body mass	The cause and risk factors of type 2 diabetes, how it differs from type 1 and is controlled, calculating body mass index and waist to hip ratio and their limits, correlation and cause, and scatter diagrams showing positive, negative or no correlation with lines of best fit.	22
The urinary system and the production of urea	The kidneys, ureters, bladder and urethra, the renal artery and vein, nephrons, and how the liver breaks down excess amino acids into toxic urea that the kidneys excrete in urine.	13
The nephron, filtration and the effect of ADH	Filtration in the glomerulus and Bowman's capsule, the substances that pass into the filtrate and why proteins and blood cells stay in the blood, selective reabsorption of glucose by active transport and water by osmosis, and how the long tubule and its capillaries suit it for reabsorption.	9
Treating kidney failure: dialysis and transplants	Why kidney failure is dangerous, how dialysis removes urea by diffusion and why dialysis fluid contains glucose and salts, the disadvantages of dialysis, and the advantages of a kidney transplant and how rejection is reduced.	8

Animal Coordination, Control and Homeostasis is 121 of the 1,218 questions in the guide.Get the guide, £7

How the guide is worked

Answering a question from memory stores it far better than reading the answer again. The guide runs that as a fixed procedure on one subtopic at a time, about twenty minutes a session.

Step 1 · Closed book
Cover the answers. Work through one subtopic and write down what you can. Leave blanks where you have nothing.
Step 2 · Open book
Go back to the top. Read each printed answer and write it out in full, including the ones you had right.
Step 3 · Closed book again
Same questions, same order, from memory. The gap between pass one and pass three is the session result.

Read the full method, the return schedule and the research behind it.