AP Bio Feedback

How do enzymes speed up chemical reaction?

• Increasing activation energy

• Decreasing activation energy

• Increasing deactivation energy

• Decreasing deactivation energy

A popular product for fruit and vegetable fans are 'Debbie green bags' which can be purachsed almost anywhere. Produce is placed in a bag that allows for the escape of ethylene gas, a hormone released by plants to ripen other nearby produce. This is an example of what type of communication?

• Direct contact

• Local signaling (paracrine)

• Long distance signaling

• Local signaling (synaptic)

Small ions or non-protein moelcules that help amplify a signal during transduction

• Protein phophatase

• Protein kinase

• Secondary messangers

• Ligands

Cyclic AMP (cAMP) was an example of...

• Protein phophatase

• Protein kinase

• Secondary messangers

• Ligands

A molecule respsonsible for phosphorylating intracellular signaling molecules

• Protein phophatase

• Protein kinase

• Secondary messangers

• Ligands

A molecule respsonsible for de-phosphorylating intracellular signaling molecules

• Protein phophatase

• Protein kinase

• Secondary messangers

• Ligands

What is the term for maintaining balanced internal environments

• Set points

• homeostasis

• Positive feedback

• Negative feedback

Tags

NGSS.HS-LS1-3

When the effects of a stimulus is reduced this is known as

• Set points

• homeostasis

• Positive feedback

• Negative feedback

Tags

NGSS.HS-LS1-3

When the effects of a stimulus is enhanced this is known as

• Set points

• homeostasis

• Positive feedback

• Negative feedback

Tags

NGSS.HS-LS1-3

Example of positive feedback

• blood clotting

• Glucose levels

• Fruit ripening

• Child birth

Tags

NGSS.HS-LS1-3