Excretion IGCSE Biology

Urea is made from excess..............

• amino acids

• urea

• bile

• urine

Urea is made in the............

• kidney

• liver

• lung

• heart

Urea is transported to the kidneys in the.........

• ureter

• urethra

• blood

• lungs

Urine is a solution of ............... and other substances in water.

• acids

• bile

• amino acid

• urea

Urine is carried from the kidneys to the bladder in the.......

• ureter

• urethra

• liver

• blood

Urine is carried from the bladder to the outside in the.......

• ureter

• urethra

• kidney

• liver

On a hot day, a person generally excretes a ..............volume of urine than on a cool day.

• smaller

• larger

On a hot day, a person generally excretes............ concentrated urine than on a cool day.

• more

• less

Carbon dioxide is made in............... cells during respiration.

• some

• all

Carbon dioxide is excreted through the.............

• liver

• kidney

• urethra

• lungs