IQ1
IQ2 (a-c)
IQ2 (d-f)
IQ3
Wild cards
100
What type of organism consists of a single cell that performs all life processes, such as reproduction, nutrition, and waste removal?
Unicellular
100
What is the main difference between autotrophs and heterotrophs in how they obtain nutrients?
Autotrophs make their own food; heterotrophs consume others
100
What is the gas required for photosynthesis?
Carbon dioxide
100
In animals, this red pigment in blood binds oxygen for transport to tissues.
Haemoglobin
100
What is the function of phloem tissue?
Transport sugars
200
Multicellular organisms have cells that are _____ for specific functions
specialised
200
Name two structures in a leaf important for gas exchange.
Stomata, spongy mesophyll
200
Which part of the digestive system absorbs most nutrients?
Small intestine
200
These two main vessels in a plant’s vascular system move water/minerals and sugars, respectively.
Xylem and phloem.
200
Name the theory that explains upward water movement in plants.
Cohesion–tension theory
300
Correct order of biological organisation in multicellular organisms
Cell→Tissue→Organ→System
300
How are alveoli adapted for gas exchange? (Give two features)
Large surface area, thin walls
300
Name two products of photosynthesis.
Glucose, oxygen
300
In an open circulatory system, the transport medium is not confined to vessels but flows into these body spaces.
body cavities or haemocoels
300
Which blood vessels exchange gases in mammals?
Capillaries
500
The process in which unspecialised cells develop into specialised cells with distinct functions and eg nerve/muscle cells
Differentiation
500
What process transports glucose from leaves to the rest of the plant?
Translocation (via phloem)
500
What are the two main types of digestion in mammals?
Physical, chemical
500
As blood moves from the lungs to the body, its carbon dioxide content changes in this way.
decreases
500
What is the waste product of anaerobic respiration in animals?
Lactic acid
750
Describe what role the circled area has in digesting food.
Bonus points if you can tell what animal this skull belongs to (+250)
killing and holding prey tearing meat making it easier to digest.
750
What theory explains the upward movement of water in plants?
Transpiration–cohesion–tension theory
750
Compare the nutrient requirements of autotrophs and heterotrophs.
Autotrophs: CO₂, H₂O, minerals, light
Heterotrophs: organic molecules, O₂
750
In plants, the composition of the phloem sap changes depending on this process that moves sugars from sources to sinks.
translocation
750
What structures open and close stomata?
Guard cells