AP BIO Dec 1 Student Q's

How do ligands move to a target cell in endocrine signaling?

• Osmosis

• Diffusion

• Bloodstream

• Desmosome

Where do hydrophobic ligands bind to in the cell?

• active site

• internal membrane receptors

• external membrane receptors

• phospholipid bilayer

What is a non-competitive enzyme inhibitor?

• 1. A substrate competes another substrate for the activation site 

• An substrate  sits next to another substrate binding to the activation site

• A substrate can not bind to the activation site.

• A substrate binds at an allosteric site changing the shape of the enzyme.

Which of the following would be the most appropriate example of the autocrine pathway of cellular communication?

• A phone alerting a faraway individual they have received a text message

• A phone updating itself while plugged in at night

• A person using siri on their iphone in order to messaging without texting

• A person carrying their phone in their pocket

What is the name of the secondary messenger that is released from the g-protein?

• ATP

• AMP

• cAMP

• GTP

What Cell signaling occurs when a cell communicates with itself?

• Autocrine signaling
• Endocrine signaling
• Transduction

• Paracrine signaling

What process does amplification carry out

• Make ATP

• Relay Messages

• Diffuse Molecules

• Turn Genes On

When Presented with a Parallel Circuit that has a light on 1 wire and nothing on the other wire, what will happen?

• The electric current will pass through the light and turn it on.

• The electric current will avoid the light and go through the other path

• The circuit will short circuit

• Both B & C

Reduction consists of the

• Gaining of e- and having a negative charge

• Losing of e- and having a positive charge

• Gaining of e- and having a positive charge

• Losing of e- and having a negative charge

What type of inhibitor binds to the active site?

•  Competitive

• Non-competitive

• Active

• Substrate