Maths
Biology
Chemistry
English Lang.
History
Energy transfers (a2 only)
Infection and response
Homeostasis and response
Responding to change (a2 only)
Cell biology
Biological molecules
Organisation
Substance exchange
The control of gene expression (a2 only)
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
Show all topics
World war two & the holocaust
1l the quest for political stability: germany, 1871-1991
Inter-war germany
2d religious conflict and the church in england, c1529-c1570
1c the tudors: england, 1485-1603
The cold war
Medieval period: 1066 -1509
Britain & the wider world: 1745 -1901
2m wars and welfare: britain in transition, 1906-1957
1f industrialisation and the people: britain, c1783-1885
2j america: a nation divided, c1845-1877
2n revolution and dictatorship: russia, 1917-1953
The fight for female suffrage
World war one
Britain: 1509 -1745
Show all topics
This document covers key biology concepts related to cells, cell division, and plant diseases. It explores microscopy techniques, cell structures, mitosis, meiosis, and viral infections in plants.
Key points:
24/11/2022
542
This page focuses on the cell cycle and mitosis, presenting questions about different stages of cell division observed in an onion root tip.
Key points:
Vocabulary: Cell cycle - The series of events that take place in a cell leading to its division and duplication.
Example: An onion root tip cell cycle lasting 16 hours is used to illustrate the concept of cell cycle duration.
The page also introduces a growth curve for E. coli bacteria, linking cell division to population growth.
The final page covers additional questions on cell division, focusing on the differences between mitosis and meiosis.
Key points:
Definition: Therapeutic cloning - A process where an embryo is produced with the same genes as a patient for medical treatment purposes.
Highlight: Understanding the differences between mitosis and meiosis is crucial for grasping concepts in genetics and reproduction.
The page concludes with questions about the advantages of using embryonic stem cells for medical treatments.
The first page introduces a question about human cheek cells viewed under a light microscope. Students are asked to label parts of the cell and identify the type of cell division body cells undergo.
Key points:
Vocabulary: Mitosis - The process of cell division in body cells that results in two genetically identical daughter cells.
Highlight: Understanding the different types of microscopes and their capabilities is crucial for observing cellular structures.
The page also includes a question about Tobacco Mosaic Virus (TMV) and its effects on plants.
Example: TMV causes yellow patches on leaves where it has destroyed chloroplasts.
This page continues with questions about TMV and its impact on plant growth. It then shifts to discussing cell measurement and magnification calculations.
Key points:
Definition: Magnification - The process of making something appear larger than it is, typically using a microscope or other optical device.
Highlight: Understanding how to calculate cell size from magnified images is a crucial skill in microscopy and cell biology.
The page also includes a question comparing the size of red blood cells to bacterial cells, reinforcing concepts of scale in cellular biology.
The final section introduces concepts of stem cells and their potential medical applications.
Different sources of human stem cells are discussed, including embryonic and adult stem cells. The advantages and disadvantages of using various stem cell sources are considered.
Vocabulary: Therapeutic cloning involves creating an embryo with the same genes as a patient for the purpose of harvesting stem cells for medical treatment.
The potential of stem cells to develop into any type of body cell (pluripotency) is highlighted as a key advantage for medical applications.
This section touches on the ethical considerations and scientific challenges associated with stem cell research and therapeutic cloning.
This section briefly covers how to test for glucose presence in fruits.
To test for the presence of glucose in fruit:
Vocabulary: Benedict's solution - A chemical reagent used to test for the presence of reducing sugars like glucose.
This test is a common biochemical procedure used to identify reducing sugars in various biological samples, including fruits.
Highlight: The intensity of the color change in the Benedict's test can provide a rough indication of the glucose concentration in the fruit.
16
785
10/11
Cells and Microscopy - OCR Gateway combined science
revision notes on cells and microscopy - from topic b1: cell level systems of OCR Gateway combined science GCSE
12
505
11/10
Meiosis and fertilisation
Revision pages on meiosis and fertilisation for biology/science GCSE. This contains labelled diagrams of the different stages and cells and also lots of information about the subject that you NEED to know!
16
427
9
EDEXCEL TRIPLE BIOLOGY - mitosis & cell division + growth
content condensed into quick short notes from CGP triple biology revision guide. simplified for better memorising.
2
134
11
biology topics 1-6 topics
biology mindmaps
10
188
11
cell division - mitosis
notes i used for gcse biology!!
33
913
10/11
Biology Cell Division Notes
Everything for AQA GCSE Biology - Topic: Cell Division
Average app rating
Pupils love Knowunity
In education app charts in 12 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
This document covers key biology concepts related to cells, cell division, and plant diseases. It explores microscopy techniques, cell structures, mitosis, meiosis, and viral infections in plants.
Key points:
This page focuses on the cell cycle and mitosis, presenting questions about different stages of cell division observed in an onion root tip.
Key points:
Vocabulary: Cell cycle - The series of events that take place in a cell leading to its division and duplication.
Example: An onion root tip cell cycle lasting 16 hours is used to illustrate the concept of cell cycle duration.
The page also introduces a growth curve for E. coli bacteria, linking cell division to population growth.
The final page covers additional questions on cell division, focusing on the differences between mitosis and meiosis.
Key points:
Definition: Therapeutic cloning - A process where an embryo is produced with the same genes as a patient for medical treatment purposes.
Highlight: Understanding the differences between mitosis and meiosis is crucial for grasping concepts in genetics and reproduction.
The page concludes with questions about the advantages of using embryonic stem cells for medical treatments.
The first page introduces a question about human cheek cells viewed under a light microscope. Students are asked to label parts of the cell and identify the type of cell division body cells undergo.
Key points:
Vocabulary: Mitosis - The process of cell division in body cells that results in two genetically identical daughter cells.
Highlight: Understanding the different types of microscopes and their capabilities is crucial for observing cellular structures.
The page also includes a question about Tobacco Mosaic Virus (TMV) and its effects on plants.
Example: TMV causes yellow patches on leaves where it has destroyed chloroplasts.
This page continues with questions about TMV and its impact on plant growth. It then shifts to discussing cell measurement and magnification calculations.
Key points:
Definition: Magnification - The process of making something appear larger than it is, typically using a microscope or other optical device.
Highlight: Understanding how to calculate cell size from magnified images is a crucial skill in microscopy and cell biology.
The page also includes a question comparing the size of red blood cells to bacterial cells, reinforcing concepts of scale in cellular biology.
The final section introduces concepts of stem cells and their potential medical applications.
Different sources of human stem cells are discussed, including embryonic and adult stem cells. The advantages and disadvantages of using various stem cell sources are considered.
Vocabulary: Therapeutic cloning involves creating an embryo with the same genes as a patient for the purpose of harvesting stem cells for medical treatment.
The potential of stem cells to develop into any type of body cell (pluripotency) is highlighted as a key advantage for medical applications.
This section touches on the ethical considerations and scientific challenges associated with stem cell research and therapeutic cloning.
This section briefly covers how to test for glucose presence in fruits.
To test for the presence of glucose in fruit:
Vocabulary: Benedict's solution - A chemical reagent used to test for the presence of reducing sugars like glucose.
This test is a common biochemical procedure used to identify reducing sugars in various biological samples, including fruits.
Highlight: The intensity of the color change in the Benedict's test can provide a rough indication of the glucose concentration in the fruit.
Biology - Cells and Microscopy - OCR Gateway combined science
revision notes on cells and microscopy - from topic b1: cell level systems of OCR Gateway combined science GCSE
16
785
0
Biology - Meiosis and fertilisation
Revision pages on meiosis and fertilisation for biology/science GCSE. This contains labelled diagrams of the different stages and cells and also lots of information about the subject that you NEED to know!
12
505
0
Biology - EDEXCEL TRIPLE BIOLOGY - mitosis & cell division + growth
content condensed into quick short notes from CGP triple biology revision guide. simplified for better memorising.
16
427
0
Biology - biology topics 1-6 topics
biology mindmaps
2
134
0
Biology - cell division - mitosis
notes i used for gcse biology!!
10
188
0
Biology - Biology Cell Division Notes
Everything for AQA GCSE Biology - Topic: Cell Division
33
913
0
Average app rating
Pupils love Knowunity
In education app charts in 12 countries
Students have uploaded notes
iOS User
Philip, iOS User
Lena, iOS user
