A Balanced Diet
A very healthy food group, which is a great source of vitamins, minerals and fibre
Fruit and vegetables
Which food group does starch fit into?
Carbohydrates
Which type of energy is stored in food?
Chemical energy
Scurvy is caused by a lack of which nutrient?
What is the function of a sperm cell?
To fertilise an egg cell
The main source of energy within the diet
Carbohydrates
What are the smaller molecules that make up starch?
Glucose
What colour does iodine turn in the presence of starch?
Blue-black
Which deficiency diseases causes bone problems such as bowed legs?
Rickets
Name an example of a specialised cell.
Red blood cell, white blood cell, root hair cell, egg cell, sperm cell, other reasonable answer
What is protein needed for?
Growth and repair
What are the smaller molecules that make up proteins?
Amino acids
Which test is used to detect reducing sugars (such as glucose)?
Benedict's test
What is the name for protein deficiency?
Kwashiorkor
State an adaptation of a red blood cell.
Biconcave disc shape, no nucleus, contains haemoglobin, flexible
Which vitamin helps calcium to be absorbed into the body?
What are the smaller molecules that make up lipids?
Glycerol and fatty acids
What is the name for the piece of equipment used to estimate the energy content of food by burning a sample and measuring the temperature increase of a set volume of water?
Calorimeter
Which vitamin is important for healthy eyesight, especially in the dark?
Vitamin A
State an adaptation of a root hair cell.
Long projection provides a large surface area; mitochondria release energy for active transport
Healthy lipids are important for which cell component?
Cell membrane
What is the difference between simple and complex carbohydrates?
Simple carbohydrates are sugars, such as glucose, fructose and sucrose, whilst complex carbohydrates contain starch, which consists of long chains of glucose
What colour does Biuret solution turn in the presence of protein?
Purple
Name a symptom of scurvy.
Bleeding gums, tooth loss, joint pain, breathlessness, red spots on the skin, severe tiredness
Which word is used to describe the nuclei of egg and sperm cells?
Haploid