BTEC Applied Science Unit 1 Revision Guide contains all of the content for all three unit 1 exams, including Biology, chemistry, and Physics.
All the content you need to achieve Distinction in the exam.
,How to use this guide EXAM DATE:
Monday 5th June 2016,
9:00am, 1h 30m
This revision guide is divided into 3 sections; Biology, Chemistry and Physics. The contents page will take you
to your chosen topic. To return to the contents page simply click the ‘home’ icon on the bottom right of the
page.
When you have completed your revision for a topic, use the ‘secure, unsure, weak’ checkbox in
the top right hand corner to record your progress. This will allow you to return to topics which
need extra work.
Each revision page has some possible exam questions listed. When you have revised a topic you should complete these
questions. Remember, practice makes perfect!
This guide is designed to help with your revision, it is not meant to replace your notes!
2
, B P
STRUCTURE AND FUNCTION OF Revised Revised
WAVES IN COMMUNICATION
CELLS AND TISSUE Y/N
Cell theory 4 Waves 66
Microscopy 6
C Transverse and longi- 68
tudinal
Animal cells 8
Diffraction gratings 70-72
Revised
Plant cells 10 PERIODICITY AND PROPERTIES OF
ELEMENTS Y/N Stationary waves reso- 74
Bacteria cells 12 nance
Electronic structure 32
Principles of fibre op- 76
Gram staining 14
Ionic bonding 34 tics
Specialised cells 16-18
Covalent bonding 36 Optical fibres 78-80
Epithelial tissue 20
Metallic bonding 38 Electromagnetic waves 82
Muscle tissue 22-24
Intermolecular forces 40
Nervous tissue 26-30
Quantises used in 42-50
chemistry
Keep track of your revision
The Periodic table 52 by marking off topics you
have covered and high-
If using this document on a lighting ones you have yet to
computer, click the page Physical properties of 54-60
revise.
number to ring you to your elements
chosen topic.
Chemical properties of 62-64
elements
3
,B CELL THEORY
SECURE
The cell is the fundamental unit of life. All organisms, whatever their type or size, are composed of cells. The modern theory of cellular organisation states:-
•All living things are composed of cells and cell products.
•New cells are formed only by the division of pre-existing cells
•The cell contains inherited information (genes), which is used as instructions for growth, functioning and development.
•The cell is the functioning unit of life; the metabolic reactions of life take place within the cells.
Eukaryotic Prokaryotic MY NOTES:
Eukaryotic cells make up multi- Prokaryotic cells are single-
cellular organisms such as celled organisms. They are sim-
plants and animals. They are ple structures and do not have
Robert Hooke
complex cells with a nucleus a nucleus or any membrane-
and membrane-bound orga- bound organelles.
nelles.
Plants and animals Bacteria
1. Outline the similarities and differences
1831: 1852:
between eukaryotic and prokaryotic
Nucleus observed Evidence for the origin of new cells
cells.
1665:
Robert Brown an Robert Remak observed cell division in 2. Briefly outline how cell theory has de-
Robert Hooke English botanist was animal cells. His findings were not accepted
first described the first to observe and at the time, but in 1855 Rudolf Virchow veloped over the past 400 years.
cells describe the nucleus in published the findings as his own to show
a plant cell. new cells form from existing ones.
1674–1683: 1860:
1674–1683:
The first living cell was Spontaneous generation disproved
Universal cell theory
observed
Louis Pasteur demonstrated that
Matthias Schleiden suggested that all plant
Anton van Leeuwenhoek bacteria will only grow in sterile
material is composed of cells. Jan Purkyne
was the first person to nutrient broth after it has been ex-
observed that animal tissue is composed of cells
observe bacteria and posed to air. This disproved the theory
and the structure is similar to plant tissue. The
protoctista from pond of spontaneous generation of cells.
scientist credited for the Universal Cell Theory is
water samples, after
Theodor Schwann, a German physiologist. He
developing powerful glass
proposed that ‘all living things are composed of
lenses.
cells.
4
, B MY NOTES/EXAM PRACTICE
SECURE
UNSURE
WEAK
5
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