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B10

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Total cards: 20•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (20)

#1
Front (Question)

What is Homestasis?

Back (Answer)

Maintaining optimal conditions for enzyme action and all cell functions.

#2
Front (Question)

Internal conditions that are controlled?

Back (Answer)

Blood glucose concentration Body Temperature Water levels

#3
Front (Question)

Receptors?

Back (Answer)

Cells that detect stimuli (changes in the environment)

#4
Front (Question)

Coordination centres?

Back (Answer)

Areas that receive and process information from the receptors. Brain, Spinal Cord, Pancreas

#5
Front (Question)

Effectors?

Back (Answer)

Muscles or glands that bring about a response to restore optimal levels.

#6
Front (Question)

Regulation script:

Back (Answer)

• Stimulus • Receptor-sends electrical impulse • Sensory Neurone • Coordinator • Relay Neurone: synapse-chemical diffuses • Motor Neurone • Effector-eg. muscle contracts

#7
Front (Question)

Reflex Action?

Back (Answer)

Rapid Automatic Unconscious part of the brain

#8
Front (Question)

Brain:

Back (Answer)

Cerebral cortex= memory, speech, hearing, personality Cerebellum=coordination & movement Medulla=Unconscious activities like breathing & heart rate

#9
Front (Question)

Investigating the Brain:

Back (Answer)

MRI Scanning Studying patients with brain damage Electrically stimulating different parts of the brain

#10
Front (Question)

Difficulties with the Brain:

Back (Answer)

complexity delicacy

#11
Front (Question)

Reaction time method:

Back (Answer)

1) Student A sits with elbow resting on the edge of the table 2) Student B holds ruler with the bottom level with student A’s thumb 3) Student B drops ruler 4) Student A catches ruler and measures the distance 5) Repeat steps 1-4

#12
Front (Question)

Control Variable:

Back (Answer)

Same ruler Same arm grabbing ruler Ruler always level with the thumb Same person

#13
Front (Question)

Improve accuracy:

Back (Answer)

Use a computer to measure reaction times

#14
Front (Question)

The Eye:

Back (Answer)

Retina: contains receptors that detect light intensity and colour Cornea: refraction of light into retina Sclera: Tough & White- Protection Lens: changes shape to focus on near/far objects Ciliary muscles: contract/relax Suspensory ligaments: loosen/tighten Pupil: changes size to allow different amounts of light Iris: contract/ relax controlling size of pupil

#15
Front (Question)

Accommodation:

Back (Answer)

NEAR objects= ciliary muscles CONTRACT suspensory ligaments LOOSEN lens THICKEN, refracts light STRONGLY FAR objects= ciliary muscles RELAX suspensory ligaments TIGHTEN lens THINNER, refracts light SLIGHTLY

#16
Front (Question)

Accommodation acronyms:

Back (Answer)

NEAR: CONSTANTLY LETTING THINGS STREAM Contract Loosen Thicken Strongly FAR: REALLY TIGHTEN THOSE STRINGS Relax Tighten Thinner Slightly

#17
Front (Question)

Myopia( SHORT SIGHTEDNESS)

Back (Answer)

• eyeball too ELONGATED & cornea too CURVED - glasses= Concave lens, light rays diverged, more refraction

#18
Front (Question)

Myopia acronyms:

Back (Answer)

EMO CURTAINS CREATE DARKNESS Elongated Curved Concave Diverged

#19
Front (Question)

Hyperopia(LONG SIGHTEDNESS)

Back (Answer)

• ciliary muscles WEAKEN lens not round enough - glasses=Convex lens, light rays converged and less refraction

#20
Front (Question)

Hyperopia acronyms:

Back (Answer)

WEMBLEY’S NOT ROARING ‘CAUSE OF COVID Weakened Not Round Convex Converged