B5 AQA Homeostasis

What keyword does the following definition best match? "The body or a cell maintaining it's internal environment"

(a)  

If internal conditions are not maintained at optimum conditions, what proteins in the body will denature?

(a)  

When the active site of an enzyme no longer fits the substrate the enzyme has (been)...

• died
• denatured
• deformed
• destroyed

Match the stimulus to the sense organ [Light]

• Ear
• Skin
• Eye
• Tongue
• Nose

Match the stimulus to the sense organ [Vibrations]

• Ear
• Skin
• Eye
• Tongue
• Nose

Match the stimulus to the sense organ [Pressure]

• Ear
• Skin
• Eye
• Tongue
• Nose

Match the stimulus to the sense organ [Chemicals]

• Ear
• Skin
• Eye
• Tongue
• Nose

Match the stimulus to the sense organ [Chemicals in air]

• Ear
• Skin
• Eye
• Tongue
• Nose

Automatic responses be nervous or chemical but are caused by the same sequence of events. Below, which is the correct sequence of events that leads to an automatic response?

• Receptors - Coordination Centres - Effectors
• Coordination Centres - Receptors - Effectors
• Effectors - Coordination Centres - Receptors

Which of the following are effectors. [Tick all that apply]

• Muscles
• Glands
• Reflexes
• Sneezes
• Heart beat