Ch 12 - Endocrine System

What chemical, when secreted into the bloodstream, controls the metabolic processes of target cells?

• neurotransmitter

• secretion

• hormone

• ligand

Tags

NGSS.HS-LS1-3

Steroid hormones are very powerful because they

• act outside of the cell

• change cellular permeability

• interact directly with DNA

• are secreted outside the body

Which of the following is true of hormones?

• they last a short time

• they are fast-acting

• they affect distant targets

• they leave the body

Tags

NGSS.HS-LS1-3

Which of the following organs is not a primary endocrine organ though it secretes hormones?

• thyroid

• pituitary

• kidney

• adrenal gland

Why can steroids pass into the cell when other hormones cannot?

• there are special steroid channels

• lipids can pass through cell membranes

• inhibitors block nonsteroid hormones

• steroids are tiny molecules

Short-range hormones that are formed rapidly and act only in the immediate area are

• steroids

• prostaglandins

• amino acids

• mucoids

Match the hormone to the gland that produces it

• ovary

• thyroxine

• pineal

• melatonin

• pancreas

• progesterone

• thyroid

• epinephrine

• adrenal

• glucagon

Which of the following is not typically a way that hormone levels are regulated?

• negative feedback

• control by other endocrine organ

• positive feedback

• direct control by nervous system

Tags

NGSS.HS-LS1-3

The "ideal" value for a body characteristic is called the

• set point

• average

• goal

• feedback point

Tags

NGSS.HS-LS1-3

____ feedback enhances a change in body chemistry.

• negative

• positive

• regular

• cyclic

Tags

NGSS.HS-LS1-3