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 for prokaryotic cell structure - A level biology for OCR A $3.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. OCR
  4.  
  5. Biology
  6.  
  7. Foundations in biology

Summary

Summary for prokaryotic cell structure - A level biology for OCR A
 0 purchase
  • Module
  • Foundations in biology
  • Institution
  • OCR
  • Book
  • A Level Biology for OCR A Year 1 and AS Revision Guide

An in-depth document of the summary notes for prokaryotic cell structure. These notes are condensed into 1 simple page, making it easy to remember the key notes and information. This summary is based of the Oxford OCR A textbook therefore covers all spec note’s necessary.

Preview 1 out of 1  pages

Document information

  • No
  • Chapter 2.5 + 2.6
  • October 12, 2024
  • 1
  • 2024/2025
  • Summary

Subjects

  • biology
  • alevel
  • ocr a
  • summary notes
  • prokaryotic cell structure

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

Written for

  • A/AS Level
  • OCR
  • Biology
  • Foundations in biology
All documents for this subject (7)

Seller

avatar-seller
dharshnikumar

Content preview

Prokaryotic(ell structure
*
prokaryotes are single-celled organisms which Flagellum -

long ,
fail-like structures adding movement (like a propeller
don't contain a nucleus + its organites are not
Le some have than . 1




membrane-bound
↳ thinner than the equivalent structure in
eutayores (undiitipodia -
sperm flagellam)
and

a ions acros a sempenneable membrane
,
not in a+2 arrangement the movement
↳ much smaller man eukaryotic cells du
meir
electrochemical gradient
↳the E to rotate the filement is provided by kn polso Chemiosmosis not ATP like
+ in
eukaryotes
↳ smaller bosomes >
- 70s compared to 80s in

eukaryores Me is attached to me cell membrane of
flagellum
>
-
a

but molecule instead bacterium by basal
↳ no nucleus
s circular
single a
body + rotated by a molecular motor


↳ all wase that contain murcin (gly lo proteins
>
-
the basal body compromises the Magellum the molecular

motor causes the hook to
urate ::
giving it a whip-like
movement




Differences between Prokaryotes + Eukaryoes :
-




* DNA Zukangsten Krokary
che
↳ the structure of Me DNA in prokaryotes is
fundamentally the same as
eukaryches but it is packaged
↳ has
dyferently a nucleus ↳ no nucleus

↳ they only are molecule
have y DNA , a chromosome , which is supercorted to make it umpact - me me
genes on

GDNA located within nucleus ↳ DNAuntained within
chromosomes are together into operons
oten grouped i a number of genes are switened on /op at me same time cytoplasm
↳ its DNA is circular (no clear start lend) wino proteins in
me cytoplasm
↳ DNA held on linear chromosomes ↳ DNA held on circular chromosomes
formed andear
↳
* Cell wall - made ↳
large
peptidoglycan (also known as murein)
80s bosomes ↳ small bosomes
from
-X more in out of see called mesosomes

Plasmids -
small loops of DNA
have plasmids
↳ ATP
production occurs in mitochondna ↳ ATP
production in infolded regionsof membrane
↳ separate from the main DNA molecule
>
-
only some prokary des

↳ contains h ↳
genes that can be passed between prokaryotes 1 .



g antibiotic resistance
. may have undulipodia may have flagella

Le
* slime capsule -
only some prokaryotes (bacrena) cemuse based all wall ↳
peptidoglycan based all wall
↳ a final layer
membranc
↳ prteck it
from drying out ↳ have phospholipid bi-layer ↳ ribosomes the site
I protects
a all are
y protein synthesis

↓
it from by
attacks cells of te immune
system of the host organism -
prevents phagocytosis
↳ has ↳ membrane bound
membrane bound
organales no
organdles

Binary fission :


ro+ any plasmids
O the single , circular DNA molecule undergo DNA replication
② parent cl divides - 2 cells
, cytoplasm roughly halved
between I daughter als

⑤ 2 daughter cells each contain a
copyy Ms circular

DNA molecule - avariable number o plasmids


* there are mechanisms to ensure that all daughter
cells inherit a copyy the single , circular DNA + plasmids
↳ wo it it will die

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 credit card 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 these notes from?

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

Will I be stuck with a subscription?

No, you only buy these notes for $3.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

64670 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling

Recently viewed by you

Exam (elaborations) ·

(0)

Module 05 Quiz The Digestive and Reproductive Systems,100% CORRECT

Exam (elaborations) ·

(0)

Praxis 5004 Red Notes Questions and Answers Already Passed

Exam (elaborations) ·

(0)

Naslca Virginia Exam Practice with questions and correct answers

Summary ·

(0)

1.2C Differences between people, extensive full ENG summary

Exam (elaborations) ·

(0)

Bakers Oral Powerplant Exam Questions and Answers (Graded A+)

Exam (elaborations) ·

(0)

NR509 Bates Test Bank – Midterm with the 100% Correct Answers

Exam (elaborations) ·

(0)

Pharmacology and the Nursing Process, 9th Edition-TEST BANK

Exam (elaborations) ·

(1)

Pharmacology and the Nursing Process, 9th Edition-TEST BANK

Exam (elaborations) ·

(0)

ATLS POST TEST 4 LATEST VERSIONS 2023-2024 WITH VERIFIED ANSWERS

$3.99
  • (0)
Add to cart
Added