QCE Biology Unit 2: Maintaining the internal environment quiz

Keeping internal conditions perfectly unchanging

Maintaining a relatively constant internal environment around a set point

Allowing internal conditions to match the external environment

Stopping all internal change

Effector, receptor, stimulus, response, control centre

Stimulus, receptor, control centre, effector, response

Receptor, stimulus, effector, control centre, response

Control centre, stimulus, response, receptor, effector

It amplifies the change

It opposes and reverses the change

It has no effect on the change

It permanently fixes the variable

Sweating when body temperature rises

Insulin release lowering blood glucose

Oxytocin and uterine contractions during childbirth

ADH increasing water reabsorption

Shivering and vasoconstriction

Sweating and vasodilation

Piloerection and increased metabolic rate

Vasoconstriction and adrenaline release

It decreases water reabsorption, producing dilute urine

It increases water reabsorption in the kidney collecting ducts

It stimulates sweating to remove water

It converts glucose to glycogen

Insulin and ADH

Adrenaline and thyroxine

Insulin and glucagon

Oxytocin and glucagon

Antibody production by plasma cells

Phagocytosis and the inflammatory response

Formation of memory B cells

Cytotoxic T cell killing of infected cells

It directly kills any pathogen already in the body

It introduces an antigen that triggers a primary response and forms memory cells

It supplies antibodies that last a lifetime without any immune response

It is an antibiotic that prevents bacterial growth

Bacteria deliberately change to survive antibiotics

Antibiotics cause new resistance mutations in every cell

Random mutation produces resistant bacteria that survive and reproduce while susceptible ones die

All bacteria are naturally resistant from birth