Transport of substances in animals and plants Worksheet-6

Transport of substances in animals and plants Worksheet-6

 

Fill in the Blanks:

  1. Urea is excreted from the body in the form of a pale yellowish-coloured liquid called _________.
  2. The absorption/filtration is done by the functional unit of the kidney in which waste substances get dissolved in water and are removed by urine are called ____________.
  3. Urine when formed is collected through the __________ into the urinary bladder.
  4. Urine is passed out from the body through the opening at the end of the _________.
  5. A method for removing toxic substances from the blood with the help of a machine when the kidneys are unable to do so is called ___________.
  6. The dialysis machine is also called a/an _________ kidney.
  7. The chamber of the heart with thick walls, which pumps blood away from the heart, is called ___________.
  8. The chamber of the heart with thinner walls which pumps blood within the heart is called ________.
  9. Artery that takes deoxygenated blood to the lungs from the heart is called the ________ artery.
  10. Red pigment of the blood is known as _________.

 

True/False:

  1. Plants excrete their toxic wastes in the form of resins, gums, etc.
  2. In humans, blood flows through arteries and veins and the heart acts as a pumping organ.
  3. Urine contains 5% water and rest 95% is urea, uric acid, and minerals.
  4. Arteries are superficially placed and blood flows freely inside it without any pressure.
  5. Animals such as Amoeba, Paramoecium, Hydra, etc., get rid of all kinds of body wastes by direct diffusion through the cell membranes.
  6. Formation of more urine is a sign of dehydration.
  7. A normal heart beats about 60 to 80 times a minute.

 

Answer Key:

Fill in the Blanks:

  1. Urine
  2. Nephrons / nephron
  3. Ureters / ureter
  4. Urethra
  5. Dialysis
  6. Artificial
  7. Ventricle
  8. Auricle
  9. Pulmonary
  10. Haemoglobin

True/False:

  1. T
  2. T
  3. F
  4. F
  5. T
  6. F
  7. T