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Unit information: Molecules of Life in 2025/26

Please note: Programme and unit information may change as the relevant academic field develops. We may also make changes to the structure of programmes and assessments to improve the student experience.

Unit name Molecules of Life
Unit code BIOC10006
Credit points 20
Level of study C/4
Teaching block(s) Teaching Block 4 (weeks 1-24)
Unit director Dr. Littlejohn
Open unit status Not open
Units you must take before you take this one (pre-requisite units)

A-level Chemistry or equivalent strongly advised.

Units you must take alongside this one (co-requisite units)

BIOC10007 – Fundamental Skills for Biochemists

Units you may not take alongside this one

None

School/department School of Biochemistry
Faculty Faculty of Life Sciences

Unit Information

Deputy Unit Director: Dr Emily Baker

Why is this unit important?
The key aim of this unit is to familiarise students with fundamental molecular concepts that underpin the study of life and the biomedical sciences. Key areas covered include the atoms found in organisms and their chemical and physical properties, and how these atoms form bonds to build up biomolecules and macromolecules. The unit looks at the chemical reactivity of biomolecules, including mechanisms, and techniques for analysing the molecular and atomic properties of biomolecules. There is a particular emphasis on understanding the basic chemistry of the amino acids that comprise the building blocks of proteins and how this is exploited to perform biochemical transformations.


How does this unit fit into your programme of study?
This unit provides a basic grounding in the key chemical concepts that underpin an understanding of the structures of biological molecules and macromolecules, and the chemical reactivity that underpins molecular transformation in living systems. Unit content complements material covered in BIOC10008 Biochemistry: Cellular Composition (Honours), deepening understanding of the chemistry of biomolecules and their reactivities to a level commensurate with a degree in Biochemistry.

Your learning on this unit

An overview of content

Topics covered in this unit include:

  • Atoms and bonds
  • Shapes and sizes of biomolecules
  • Mechanisms of biomolecular reactions
  • Biological effects of radiation
  • NMR spectroscopy
  • Infrared spectroscopy
  • Fluorescence spectroscopy
  • Biochemistry of carbohydrates and alcohols
  • Biochemistry of amines
  • Biochemistry of esters and thioesters
  • Biochemistry of aldehydes and ketones
  • Fatty acids and lipids
  • Nucleotide structure and chemistry
  • Cofactors and coenzymes

How will students, personally, be different as a result of the unit?

At the end of the unit a successful student will have the chemical intuition
that enables them to demonstrate:

  1. An understanding of the basic components that form atomic matter, as found in biological systems.
  2. Knowledge of the electron arrangements in common elements found in biological systems and how these dictate the types of bonding interactions and molecular shapes they make.
  3. An understanding of basic chemical terms (including electrophile, nucleophile, leaving group, acid and base) involved in simple biochemical reactions and their roles within a reaction.
  4. Familiarity with the chemical composition and properties of common biomolecules including amino acids, peptides, nucleotides, carbohydrates, lipids, co-factors, and modifications such as phosphorylation, including an understanding of the reactivities of functional groups found in common biological molecules.
  5. The ability to deduce reaction mechanisms for biochemical transformations.
  6. An understanding of the concepts and practice of spectroscopic techniques as applied to the analysis of biomolecules.
  7. An appreciation of how spectroscopic data can be used to identify biomolecules.

Learning Outcomes

Learning on this unit directly addresses components of the Bristol Skills Profile, including:

  • How to develop effective learning strategies.
  • How to think critically.
  • How to develop ideas and solve problems.
  • How to analyse and present data.
  • Work well as part of a team.
  • Able to identify and work with technological advances.

How you will learn

The teaching in the unit is normally delivered through a combination of synchronous and asynchronous activities including lectures, workshops and laboratory classes.

How you will be assessed

Tasks which help you learn and prepare you for summative tasks (formative):

The unit is normally supported by formative workshops that build ability and confidence in the analytical and numerical skills required by scientists. The unit is supported by online resources delivered through Blackboard and eBioLabs that include formative tests and other opportunities to test understanding.

Tasks which count towards your unit mark (summative):

The components that make up the unit assessment are

  • Practical Assessments: 20%
  • Molecules and reactions assessment: 30%
  • End of unit exam: 50%

To earn credit for this unit you must normally have made a reasonable attempt at each of the components of the unit assessment. A reasonable attempt requires a student to have undertaken the assessment activity and engaged with its purpose in the academic judgement of the relevant Unit Director, or nominee.

When assessment does not go to plan

Reassessment of the “Practical Assessments” component typically involves completion of one or more laboratory class assessments using model data. For all other components, reassessment normally involves a second attempt at the same form of assessment.

Resources

If this unit has a Resource List, you will normally find a link to it in the Blackboard area for the unit. Sometimes there will be a separate link for each weekly topic.

If you are unable to access a list through Blackboard, you can also find it via the Resource Lists homepage. Search for the list by the unit name or code (e.g. BIOC10006).

How much time the unit requires
Each credit equates to 10 hours of total student input. For example a 20 credit unit will take you 200 hours of study to complete. Your total learning time is made up of contact time, directed learning tasks, independent learning and assessment activity.

See the University Workload statement relating to this unit for more information.

Assessment
The Board of Examiners will consider all cases where students have failed or not completed the assessments required for credit. The Board considers each student's outcomes across all the units which contribute to each year's programme of study. For appropriate assessments, if you have self-certificated your absence, you will normally be required to complete it the next time it runs (for assessments at the end of TB1 and TB2 this is usually in the next re-assessment period).
The Board of Examiners will take into account any exceptional circumstances and operates within the Regulations and Code of Practice for Taught Programmes.

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