Biomedical Science quick practice

Question 1 of 10

In a blood pressure reading of 120/80 mmHg, the 120 is the

A. diastolic pressure B. systolic pressure C. pulse rate D. temperature

Question 2 of 10

The resting membrane potential of a neuron is about

A. −70 mV B. +70 mV C. 0 mV D. −7 V

Question 3 of 10

Chemicals that carry signals across a synapse between neurones are

A. antibodies B. neurotransmitters C. enzymes D. hormones only

Question 4 of 10

Gram-positive bacteria stain purple because they have

A. no cell wall B. a thick peptidoglycan cell wall C. a thin wall with outer membrane D. chloroplasts

Question 5 of 10

The normal range of haemoglobin in adult males is about

A. 30–40 g/dL B. 1–3 g/dL C. 13–17 g/dL D. 5–7 g/dL

Question 6 of 10

A person with blood group A has antibodies against

A. A antigens B. B antigens C. both A and B D. neither

Question 7 of 10

The liver produces bile and also

A. pumps blood B. detoxifies harmful substances C. produces insulin D. filters urine

Question 8 of 10

A pulse oximeter measures

A. oxygen saturation of the blood B. blood pressure C. temperature D. heart sounds

Question 9 of 10

Steroid hormones act on target cells by

A. entering the cell and binding to receptors inside B. binding only to the outer membrane C. destroying the cell D. acting on DNA in blood

Question 10 of 10

A randomised controlled trial reduces

A. selection bias B. sample size C. cost D. ethics approval

Score so far

0 / 0

Answered0 / 10

1 2 3 4 5 6 7 8 9 10

New set of questions

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.

Past questions, worked solutions and curriculum-mapped study material for JHS and SHS students and teachers in Ghana.

Learn

About