100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary BCM 257 Summaries R180,00
Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of Pretoria (UP)
  4.  
  5. Bcm257

Summary

Summary BCM 257 Summaries

2 reviews
 6 purchases

An in depth summary of all the BCM 257 content you will need to know. This includes information from lecture slides, textbooks, as well as lectures. This study material can be used solely to study from and from this you can get a distinction.

Preview 4 out of 141  pages

Document information

  • January 16, 2023
  • 141
  • 2021/2022
  • Summary

Subjects

Written for

All documents for this subject (2)

2  reviews

review-writer-avatar

By: u22891219 • 10 months ago

review-writer-avatar

By: langman19 • 1 year ago

Seller

avatar-seller
ath101

Reviews received

Content preview

BCM EXAM NOTES

CHAPTER 1.3


BIOCHEMISTRY IS THE CHEMISTRY OF LIVING MATTER


Living matter is characterised by:

‐ A high degree of complexity and organisation
‐ The extraction, transformation, and systematic use of energy to create and maintain
structures and to do work
‐ The interactions of individual components being dynamic and co-ordinated
The ability to sense and respond to changes in surroundings
A capacity for fairly precise self-replication while allowing enough change for evolution


CELL: THE UNIVERSAL BUILDING BLOCK



‐ Living organisms are made of cells
‐ The simplest living organisms are unicellular (single-celled)
‐ Larger organisms are multicellular (many-celled), with different functions for different cells
‐ Cells have some common features but can contain unique components for different
organism


LIVING SYSTEMS EXTRACT ENERGY



‐ From sunlight
• Plants
• Green bacteria
• Cyanobacteria
‐ From fuels
• Animals
• Most bacteria
‐ Energy input is needed in order maintain life

, CIS VS. TRANS




ENANTIOMERS AND DIASTEREOMERS

, INTERACTIONS BETWEEN BIOMOLECULES ARE SPECIFIC



‐ Macromolecules fold into 3D structures with unique binding pockets
‐ Only certain molecules fit in well and can bind
‐ Binding of chiral biomolecules is stereospecific

, ORGANISMS PERFORM ENERGY TRANSDUCTIONS TO ACCOMPLISH WORK TO
STAY ALIVE



‐ Living organisms exist in a dynamic steady state and are never at equilibrium with their
surroundings
‐ Energy coupling allows living organisms to transform matter into energy
‐ Biological catalysts reduce energy requirement for reactions while offering specificity
‐ As the entropy of the universe increase, creating and maintaining order requires work and
energy




HOW TO SPEED REACTIONS UP



‐ Higher temperatures
• Stability of macromolecules is limiting
‐ Higher concentration of reactants
• Costly, as more valuable starting material is needed
‐ Changing the reaction by coupling to a fast one
• Universally used by living organisms
‐ Lower activation barrier by catalysis
• Universally used by living organisms

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying this summary from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller ath101. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy this summary for R180,00. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67479 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 15 years now

Start selling
R180,00  6x  sold
  • (2)
Add to cart
Added