What are lipids built from?
Long chains of amino acids
Glycerol and fatty acids
Maltose
What is urine made of?
Water, urea, salts
Water, urea, glucose
Water, urea, glucose, salts
What is the only part of the carbon cycle that removes carbon dioxide from the atmosphere?
Decomposition
Respiration
Photosynthesis
About how much energy is transferred from one trophic level to the next?
15%
10%
25%
The right ventricle pumps deoxygenated blood to the lungs through the...
Pulmonary artery
Vena cava
Pulmonary vein
What colour will a sample turn if iodine solution is added to it and it contains starch?
Brick red
Blue-black
Brown
What are the pairs of bases in DNA?
A & T, and C & G
A & G, and C & T
A & C, and T & G
What is the function of the conjunctiva in the eye?
To control the amount of light that enters the eye
To lubricate and protect the surface of the eye
To focus on nearby and far away objects
What is your genotype?
The alleles you have
The number of chromosomes in your cells
The characteristics you display
What is a pathogen?
The plant growth hormone
An organism that lives off another organism
An organism that causes disease
Which organisms can be pathogens?
Bacteria and viruses
Bacteria, fungi, viruses and protocti
Bacteria, viruses and plants
What are platelets?
A type of white blood cell
The liquid substance in blood
Small fragments of cells in blood
What is the function of platelets?
To destroy pathogens
To help with blood clotting
To carry oxygen through the bloodstream
What do xylem tubes transport?
Water and mineral salts
Sugars and amino acids
Water and amino acids
How does ADH control water content?
Suppresses the nerves that tell the brain when the bladder is full
Makes the nephrons more permeable
Prevents too much water being absorbed in the large intestine
Which of these does a red blood cell have?
Cell membrane
Nucleus
Cell wall
How much energy does anaerobic respiration produce compared to aerobic respiration?
More
Less
The same amount
Chemical fertilizers can cause _____ which can cause fish to die
Acid rain
Eutophication
Sedimentation
Where in the nephron is glucose reabsorbed?
Collecting duct
Bowman's capsule
Proximal convoluted tubule
