Vocabulary - Movement Across Membranes printable pdf download

Vocabulary - Movement Across Membranes

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Vocabulary

STUDENT RESOURCE 6.1

INFORMATION SHEET

kidney the excretory organ that ﬁ lters

ureter the tube that carries urine from a

wastes from the blood

kidney to the urinary bladder

About 2,000 liters of blood pass

Your body has two ureters, one from

through the kidneys each day. The

each kidney. The ureter is 8 to 10 inches

wastes that are ﬁ ltered out leave the

long in adults.

body in urine.

urethra the tube that carries urine from

osmosis the diffusion of water across a

the urinary bladder to the outside of

membrane

the body

Water diffuses from where it is

Your body has one urethra.

more concentrated to where it is less

urinary bladder the organ that collects

concentrated. In living things, water

and stores urine until it leaves the body

diffuses across the cell membrane.

The urinary bladder can store as

sweat gland a structure in the skin that

much as one-half liter of urine.

removes salt and water from the body

urine a liquid that is formed in the

and helps cool the body

kidneys and contains wastes

The skin has more than two million

The average adult produces one to

sweat glands. The skin is your largest

two liters of urine each day.

excretory organ.

HUMAN BODY • SECTION 6 MOVEMENT ACROSS MEMBRANES

Vocabulary - Movement Across Membranes