Top answers

Explain how the structure of an egg cell is related to its function.

The egg cell is a specialised germ cell which has a haploid number of chromosomes in order to allow restoration of diploid number (46) at the time of fertilisation.The egg cell contains lipid droplets to pro...
NG
Answered by NESRIN G. • Biology tutor
20688 Views

Describe a 2 step synthesis to form pentan-1-ol from pentane.

Lesson on organic synthesis ( Unit 4 OCR A ) Step 1/ Slide 1: Teach (unless told that knowledge is known, tips and pointers still can be given). Step 2/ Slide 2: Worked example (if necessary). Step 3/ Slide ...
Answered by • Chemistry tutor
6523 Views

In terms of pressure and volume, explain the changes that take place in the chest to allow ventilation to occur.

Think through inhalation and exhalation separately and the events step-wise. Be aware of the movements of your own chest when breathing in and out. Inhalation (breathing in):The external intercostal muscles ...
AH
Answered by Alice H. • Biology tutor
3200 Views

Describe the role of different structures (shown in the figure below) involved in the coordination of a reflex action and the sequence of events that occur(6 marks).

A receptor detects a stimulus and generates electrical impulses in response. Electrical signals are then conducted by a sensory neuron to the spinal cord. Neurotransmitter molecules then cross the synapse be...
LS
Answered by Laura S. • Biology tutor
3061 Views

How does Homer make the supplication scene of Iliad XXIV emotive?

Homer makes the supplication scene of Iliad XXIV by introducing Priam with his standard epithets, "King Priam" of the "wide-reaching kingdom", to highlight the contrast with the reality o...
TR
3279 Views