Show:
Stimulus–Response Pathway
Homeostasis & Temperature Control
Hormones & Blood Glucose
Immune System Defences
100

What is the first step in the stimulus–response pathway?

  • A) Effector activation
  • B) Stimulus detection
  • C) Motor neuron firing
  • D) Response

B) Stimulus occurs

100
  1. What does homeostasis maintain?
  • A) External environment
  • B) Stable internal conditions
  • C) Blood pressure only
  • D) Heart rate only
  • B) Stable internal conditions
100
  1. Which hormone lowers blood glucose?
  • A) Glucagon
  • B) Adrenaline
  • C) Insulin
  • D) Cortisol
  • C) Insulin
100

Which is the first line of defense?
A) White blood cells
B) Skin
C) Antibodies
D) Fever

B) Skin

200

Which structure detects a stimulus in the body?
A) Hormone
B) Neuron
C) Receptor
D) Effector

C) Receptor

200

Which is an example of homeostasis?

  • A) Eating food
  • B) Running fast
  • C) Sweating when hot
  • D) Sleeping
  • C) Sweating when hot
200

Where is insulin produced?

  • A) Liver
  • B) Kidney
  • C) Thyroid
  • D) Pancreas
  • D) Pancreas
200

Which is part of the second line of defense?
A) Skin
B) Antibodies
C) Mucus
D) White blood cells

D) White blood cells

300

What term describes the organ or tissue that carries out the response?
A) Control center
B) Effector
C) Stimulus
D) Receptor

B) Effector

300

Which organ helps regulate temperature?

  • A) Heart
  • B) Liver
  • C) Kidney
  • D) Skin
  • D) Skin
300
  1. What does insulin do?
  • A) Raises blood glucose
  • B) Lowers blood glucose
  • C) Increases fat breakdown
  • D) Stimulates adrenaline
  • B) Lowers blood glucose
300

Which is part of the third line of defense?
A) Skin
B) Fever
C) Antibodies
D) Tears

C) Antibodies

400

Put these in order: receptor, effector, stimulus, response.
A) Stimulus → Receptor → Effector → Response
B) Response → Stimulus → Receptor → Effector
C) Receptor → Stimulus → Response → Effector
D) Stimulus → Effector → Receptor → Response

A) Stimulus → Receptor → Effector → Response

400

What happens when body temperature rises?

  • A) Vasoconstriction
  • B) Shivering
  • C) Increased glucose
  • D) Vasodilation
  • D) Vasodilation
400
  1. Which hormone raises blood glucose?
  • A) Insulin
  • B) Thyroxine
  • C) Glucagon
  • D) Estrogen
  • C) Glucagon
400

What do antibodies do?

A) Bind to pathogens
B) Break down glucose
C) Produce hormones
D) Increase temperature

A) Bind to pathogens

500

How do the nervous and endocrine systems differ in transmitting responses?
A) Nervous uses electrical impulses; endocrine uses hormones
B) Nervous uses hormones; endocrine uses electrical signals
C) Nervous is slower; endocrine is faster
D) Both use the same method

A) Nervous uses electrical impulses; endocrine uses hormones

500

Which feedback mechanism is homeostasis based on?

  • A) Positive feedback
  • B) Neutral feedback
  • C) Random feedback
  • D) Negative feedback
  • D) Negative feedback
500
  1. What happens if insulin is absent?
  • A) Blood glucose drops
  • B) Temperature falls
  • C) Heart rate slows
  • D) Blood glucose rises
  • D) Blood glucose rises
500

Which immune response involves inflammation?
A) First line of defense
B) Second line of defense
C) Third line of defense
D) Hormonal response

B) Second line of defense