Cardiovascular System Arteries and Veins Notes Questions with Answers PDF Download – Test 55

MCQ 271: After circulation, blood returns to the:

1. left atrium
2. vena cava
3. right atrium
4. right ventricle

MCQ 272: The concentration gradient is said to exist when the:

1. concentration of ions is more inside the cell and less outside the cell
2. concentration of ions is lesser inside the cell and more outside the cell
3. hypertonic solution enters the cells
4. water enters by osmosis

MCQ 273: Ultraviolet light does not involve in:

1. ionization of radiation
2. X-rays
3. causing skin cancer
4. breaking of Deoxyribonucleic Acid(DNA) strands

MCQ 274: Each Adenosine Triphosphate (ATP) molecule is used for,:

1. 2 sodium ions are pumped out of the cell
2. 3 sodium ions are pumped out of the cell
3. 2 sodium ions are pumped into the cell
4. 3 sodium ions are pumped into the cell

MCQ 275: The typical amount of urea excreted by the adult, per day is:

1. 21 grams
2. 20 grams
3. 25 grams
4. 23 grams