Animals
Cells
Membranes and organelles
Cell spesialisation
100
Worlds biggest mammal
Blue whale
100
Type of cell that has cellulose in the cell wall
plant cell
100
Integral proteins are on the surface of the membrane. True or false?
False
100
Usually the biggest cell in humans and animals
The egg cell
200
Crocodiles only live in freshwater, true or false?
False
200
If you want to study an living amoeba, what type of microscopy should you use and why?
Light microscopy. EM can only study dead/non-living organisms.
200
What can the plasma membrane/the phospolipid bilayer also be called? (A model proposed by Singer and Nicolson)
Fluid mosaic model
200
What are the invaginations of the inner membrane called?
Cristea
300
Only bird that is capable of sustained backwards flight?
Hummingbirds
300
State 4/8 life processes
Metabolism, respons to stimuli, homeostasis, movement, growth, reproduction, excretion, nutrition
300
State one function of glycolipids and glycoproteins
Cell recognition, cell adhesion or cell signalling
300
A fertilised egg cell is called a....
Zygote
400
What bird has the biggest wingspand?
The (wandering) albatross (3.6 meters)
400
Explain the main observations in the Miller-Urey experiment.
Organic molecules can be produced from inorganic molecules. Organic molecules can form when exposed to an energy source/ electric spark.
400
What is cholesterol?
An amphipatic steroid
400
Can form any cell type and develop into entirely new organisms (embryonic stem cells)
Totipotent
500
What is the name of the biggest (living) penguin and where does it live?
Emperor penguin and Antartica (the south pole)
500
Explain the endosymbioses theory
Eukaryotic organisms evolved when this common ancestor endocytosed a prokaryotic cell capable of generating energy from oxygen
500
Explain what is meant by depolarisation and repolarisation in a neuron.
Na channels open first, Na+ diffuses into the neuron (depolarisation). Na channels closes and K channels open. K+ diffuses out of the neuron (repolarisation), K channels close.
500
What is induced pluripotent stem cells (IPS cells)?
Cells isolated from a patient, cells are treated with reprogramming factors and become pluripotens stem cells. These cells can be differentiated and implanted into a patient to treat condition.