AP Bio Cell Communication and Cell Signaling

What type of macromolecule are receptor molecules?

• nucleic acid
• protein
• carbohydrate
• lipid

What do protein kinase molecules do to other molecules?

• they add a phosphate group to them
• they remove phosphate groups from them
• they break them down
• they inhibit the action of the molecule

Which of the following represents a signaling molecule that acts long-distance?

• hormone

• saccharide

• second messengers

• neurotransmitter

Which of the following represents the correct sequence of events involved in signal transduction?

• reception, response, transduction

• transduction, reception, response

• response, reception, transduction

• reception, transduction, response

What is a molecule that specifically binds to another molecule called?

• modulator

• ligand

• hormone

• neurotransmitter

True/False: steroid hormones (non-polar/hydrophobic molecules) can passively diffuse across membranes.

• True

• False

What is it called when you add energy to a molecule via the addition of a phosphate

• energization

• phosphorylation

• phosphorylase

Tags

NGSS.HS-PS1-4

cellular communication that occurs through cell junctions

• direct contact

• local signaling

• long-distance signaling

• signaling substances

Gap junctions

• cell junction in animals cells

• cell junction in plant cells

• long-distance signaling

• signaling substances

plasmodesmata

• cell junction in animals cells

• cell junction in plant cells

• long-distance signaling

• signaling substances