Start learning →

B.Sc Microbiology Body Fluids and Circulation — practice questions

Explore 6 free Body Fluids and Circulation questions in B.Sc Microbiology Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Body Fluids and Circulation with Quill →

Body Fluids and Circulation questions and exercises with answers

Showing questions 1–6 of 6.

The oxygen-carrying pigment in red blood cells isRead the answer and worked solution →A person with blood group O isRead the answer and worked solution →The insoluble protein meshwork in a blood clot is made ofRead the answer and worked solution →The natural pacemaker of the human heart is theRead the answer and worked solution →Stroke volume 70 mL, heart rate 80 bpm. Cardiac output isRead the answer and worked solution →A typical normal blood pressure for a healthy adult isRead the answer and worked solution →

Worked practice questions

The oxygen-carrying pigment in red blood cells is

  1. chlorophyll
  2. haemoglobin
  3. myoglobin
  4. haematin
Show answer and solution

Correct answer: B. haemoglobin

Haemoglobin — iron-containing protein in RBCs. Binds O₂ in lungs, releases it in tissues. Myoglobin is the related muscle protein that stores O₂.

Open this question →

A person with blood group O is

  1. universal recipient
  2. universal donor
  3. incompatible with all groups
  4. of genotype I^A I^B
Show answer and solution

Correct answer: B. universal donor

Group O has no A or B antigens — can donate to anyone. Cannot accept any non-O blood, because O serum has both anti-A and anti-B antibodies. Universal recipient is AB.

Open this question →

The insoluble protein meshwork in a blood clot is made of

  1. albumin
  2. globulin
  3. fibrin
  4. haemoglobin
Show answer and solution

Correct answer: C. fibrin

Soluble fibrinogen → insoluble fibrin (via thrombin). Fibrin threads weave a mesh trapping blood cells, forming the clot.

Open this question →

How to practise

  1. Choose a Body Fluids and Circulation question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Diversity of LifeThe Living WorldCell StructureLiving WorldCell BiologyCell: The Unit of LifePlant KingdomAnimal Kingdom