Edexcel A2 Biology 3

Welcome to your Edexcel A2 Biology 3

Lack of rhodopsin could cause the following condition.

What happens during the P wave of electrocardiogram?

The process where dead plant and animal matter is being converted into fine brown particles by soil micro organisms.

What does the electrocardiogram (ECG) T wave indicate is happening in the heart?

Which of the following is incorrect regarding the role of synapses?

A factor which does not affect the speed of conductance in neurones.

Which of the following is responsible for saltatory conduction in myelinated neurones?

Select the correct statement regarding cones.

In which heart chamber's wall does the electrical initiation of a heartbeat begin?

A factor which does not affect the possibility of contracting diabetes mellitus?

Which of the following is incorrect regarding the unequal distribution of ions inside and outside of a resting nerve fibre?

Which of the following is an incorrect statement about the homeostatic control of the concentration of glucose in the blood?

Select the incorrect statement from the following.

The motor neurone forms a ______ with each muscle fibre and the synapse is called a _______.

Which of the following foods can lead towards diabetes mellitus?

Choose the correct statement regarding the mineralization process of decomposition.

The main cardiac control region of the brain.

The part of a myofibril between two Z lines is called a _________.

Which of the following is incorrect regarding the selective permeability of neurilemma on a resting nerve fibre?

Select the incorrect statement regarding the Nitrogen cycle.

Which of the following is not an example of a neurotransmitter?