Cells and Organelles
What organelle is the 'powerhouse' of a cell?
Mitochondria
What does the 'S' stand for in MRSGREN
Sensitivity
This word describes a feature that helps an organism survive in its environment.
Adaptation
What state of matter is water vapour?
Gas
What piece of equipment and unit of measurement is used for temperature?
Thermometer in degrees Celsius
What is the jelly/ gel-like substance that fills a cell, and is where many chemical reactions happen?
Cytoplasm
What is the tool called that gives a selection of two choices from traits to narrow down the species organism in question?
Dichotomous Key
What is the first component of a food chain? Give an example of an organism that can be this.
Producer, e.g. plants like grass
What state of matter has a fixed volume but variable shape?
Liquid
What is a 'dependent' variable?
The variable that responds to a change from the independent variable.
The variable that is measured.
What TWO organelles are only in plant cells, and not in animal cells?
Chloroplasts and Cell Wall
Animals with backbones are classified in this major group
Vertebrates
Which specialised cell is responsible for fighting of pathogens and infections?
White blood cells
What is the transition between a liquid and a gas called when temperature is decreasing?
Condensation
When drawing a graph, which variables go on the X and Y axis?
(HINT: Give both)
X = Independent Variable
Y = Dependent Variable
What is the function of the nucleus?
The control centre of the cell (or the "brain"). Stores genetic information as DNA
What is the order of taxonomy from largest/ most general grouping to most specific?
HINT: Do Kangaroos Play Chess Or Find Games Silly?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
A polar bear’s thick fur and fat layer are examples of this type of adaptation.
Structural Adaptation
Solid, e.g. table
What is a 'controlled' variable? Why are they important?
Controlled variables stay the same through all experiments, and make sure that the tests are fair and comparable.
What is the function of ribosomes in a cell?
Ribosomes are responsible for making proteins by assembling amino acids according to the instructions from DNA.
Using this dichotomous key, what is the unknown organism? The unknown organism does not photosynthesise, moves toward food, responds rapidly to touch, has no backbone, and breathes through spiracles.
1a. Organism makes its own food by photosynthesis → go to 2
1b. Organism does not make its own food → go to 3
2a. Organism has vascular tissue → Plant A
2b. Organism lacks vascular tissue → Plant B
3a. Organism shows movement and responds rapidly to touch → go to 4
3b. Organism absorbs nutrients after external digestion and has cell walls → Fungus C
4a. Organism has a backbone and breathes with lungs as an adult → Animal D
4b. Organism has no backbone and breathes through spiracles → Animal E
Animal E
Describe TWO DIFFERENT types of adaptations in a kangaroo?
E.g.
Structural: Long muscular tail, marsupial pouch
Physiological: Produces milk, continuous teeth production
Behavioural: Foot thumping to ward off predators, Travel in mobs, Forage around dawn and dusk.
What is the transition between states called when you 'skip' a liquid when starting with a gas and ending with a solid (e.g. snow)
Repeating measurements and calculating this helps make results more reliable.
Average (mean)