Download Year 9 Biological Principles Topic Checklist

Year 9 Key Concepts in Biology Topic Checklist:
I can:
Define the term eukaryotic and prokaryotic cell and give examples of each
Describe the structure of an animal cell, including being able to identify and give the
functions of:
 Nucleus
 Cell membrane
 Mitochondria
 Ribosomes
Describe the structure of a plant cell, including being able to identify and give the
functions of the sub cellular structures listed above and:
 Cell wall
 Chloroplasts
 Vacuole
Compare and contrast a plant and animal cell
Describe the structure of a bacterial cell, including being able to identify and give the
functions of:
 Chromosomal DNA
 Plasmid DNA
 Cell membrane
 Ribosomes
 Flagella
Compare and contrast a eukaryotic and prokaryotic cell
Describe how to use a microscope to view cells
Describe how to use a ruler and a microscope to estimate cell size
Accurately draw biological specimens, using thin clear lines, labelling the visible structures
(e.g. nucleus, cell wall), stating the magnification.
Calculate magnifications from an eyepiece and objective lens
Estimate the size of a cell from a scale bar
Describe how specialised cells are adapted to their function including:
 sperm cells, including the functions of the acrosome, haploid nucleus,
mitochondria and tail
 egg cells including the functions of the nutrients in the cytoplasm, haploid nucleus
and changes in the cell membrane after fertilisation
 ciliated epithelial cells including the functions of the cilia and mitochondria
Explain how changes in microscope technology, including electron microscopy, have
enabled us to see cell structures with more clarity and detail than in the past and
increased our understanding of the role of sub-cellular structures.
Define and correctly use the terms magnification and resolution, and compare these for a
light and electron microscope.
Demonstrate an understanding of number, size and scale, including the use of estimations
and explain when they should be used
Understand the relationship between quantitative units in relation to cells, including:
 milli (10−3)
 micro (10−6)
 nano (10−9)
 pico (10−12)
Convert between different measurements including millimetres, micrometers and
nanometers.
Perform calculations with numbers written in standard form
Explain how substances are transported into and out of cells, including by:
 diffusion,
 osmosis and
 active transport