Cells
Name the second smallest level of organisation in a human
Cell
Give an example of physical evidence
weapons, fingerprints, tools, tyre tracks and clothing ect
Write what SOP stands for
Standard operating procedure
True or False: A heart rate monitor can be used to measure respiration
False
Define BPM
beats per minute
Name the organelle thats the control centre of the cell
Nucleus
Name the type of evidence thats small or microscopic pieces that can be transferred during a crime
trace evidence
Calculate the total magnification of Medium power on a microscope:
Eye piece lens - 10x
Lens magnification - 10 x
100 x
Identify the function of the respiratory system
bring in oxygen, remove carbon dioxide
identify the function of the circulatory system
transport blood
Name an organ found in a human
Femur, Heart, Liver, Brain, Lung ect
Determine if the following information is a piece of evidence opinion or anecdote.
"My uncle once slipped on a wet floor in a supermarket and broke his arm, so I think all supermarkets are dangerous."
Anecdote — it’s a personal story, not verifiable data or a widely supported fact
Identify a hazard involved in changing a light bulb
electric shock, burn injury, falling, broken glass ect
In a drowning investigation, what body part do forensic scientists check for water to help tell if the person was still alive when they entered the water?
lungs
This blood vessel results in High volume of blood loss if directly damaged.
Artery
DNA is made up of smaller molecules called nucleotides. Name the 3 partsthat makeup a nucleotide
A phosphate group
A deoxyribose sugar
A nitrogen-rich (nitrogenous) base
straight up /down
Construct a hypothesis for the investigation below.
In this experiment, students tested which temperature of water would dissolve the most amount of salt.
They set up 3 beakers with water at different temperatures. The first beaker had room temperature water, the second beaker had hot water, and the third had boiling water.
They stirred in ½ teaspoon of salt at a time into each beaker.
Once the salt was fully dissolved,
They added another ½ teaspoon.
When no more salt would dissolve,
they recorded the total amount.
Example: As the temperature of the water increases, the amount of salt dissolved will also increase.
This muscle helps you breathe by moving up and down. It’s found just below the lungs.
Diaphragm
The function of this blood vessel is to Carry blood towards the heart. Has contant, low blood pressure.
Veins
Define what STR stands for in DNA profiling analysis
Short tandem repeats
List the 4 components of blood
Plasma
Red blood cells
White blood cells
Platelets
Describe how to make this experiment more valid.
A student places one plant on a windowsill (full sunlight) and another in a dark cupboard (no sunlight). They water both plants the same amount every day and measure their height each week for 4 weeks.
Ensure all other variables are controlled:
Same plant species
Same type of soil and pot
Same amount of water and temperature
Write the word equation for cellular respiration
glucose + oxygen → carbon dioxide + water + energy (ATP).
In a forensic autopsy, livor mortis (the pooling of blood in the body after death) can help determine the position of the body when the person died. This liquid tissue, which carries oxygen, nutrients, and waste, is what causes the purple discoloration seen in livor mortis.
blood