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Outline the circulation of blood and the physical changes of the heart during the cardiac cycle.

The cardiac cycle is split into 2 main phases: systole where the heart contracts and ejects blood out from the heart and diastole where the heart relaxes and fills with b...

Answered by Aishah M. • Biology tutor

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Using a genetic diagram, identify the genotypes of the F2 generation of pea pods if a homozygous green pod and a homozygous yellow pod were crossed initially. The yellow pod contained recessive alleles (g).

A homozygous green pod will have a GG genotype while a homozygous yellow pod will have gg. Each parent has two alleles but only one is passed to an individual offspring via the gametes. In this case, the ...

Answered by Jessica N. • Biology tutor

4013 Views

Explain the process of oxidative phosphorylation and the electron transport chain in the production of ATP in respiration.

Oxidative phosphorylation and the electron transport chain (ETC) are both aerobic processes that require oxygen. These processes occur in the mitochondria of cells across the inner mitoch...

Answered by Keval P. • Biology tutor

4117 Views

Describe how deoxygenated blood flows through the heart

Deoxygenated blood from the body flows into the right atrium via the vena cava. The right atrium contracts, forcing open the tricuspid valve. This allows...

Answered by Anna F. • Biology tutor

2682 Views

Describe the processes that occur during the first division of meiosis.(6 marks)

The first division of meiosis consists of the stages, interphase, prophase, metaphase, anaphase and telophase. During interphase, growth of the cell and more importantly, DNA replication occurs. After DNA...

Answered by Orla F. • Biology tutor

10303 Views