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Edexcel Biology A level Topic 4 Flashcards | StudBud
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Edexcel Biology A level Topic 4
Edexcel Biology A level Topic 4
25 terms
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A #biology #quiz #Alevel #topic4 #salters-nuffield
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Questions
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Answers
1
What is transpiration
tree sweat
Water evaporating from plants
plants absorbing water
Water
2
What's the order of the hierarchial system
King phillip could only Fight Greg squirrels
Kingdom, phylum, class, order, family,genus,species
Kingdom, phylum, order, class,family,genus,species
Kingdom, phylum, class, family, order,family,genus,species
3
What are the symptoms of eating foxgloves
Hallucinations, heart failure , dizziness , vomiting
All of the above
Nothing
Hallucinations, nausea , dizziness , vomiting
4
What is cohesion
Hydrogen bonds between water molecules and the cell wall
Hydrogen bonds between water molecules
5
T/F in clinical trials there is around 100-300 patient volunteers
False
True
6
What is the role of zoos
Tourism, conservation & reasearch
prevent exploitation of animals
Conservation, reasearch , eductaion
Conservation research education
7
What's the sequence of steps withering took when investigating his drug
Tested on animals , on healthy volunteers
Tested drug on patients ,recorded side effects, upped dosage
Never tested it
8
What is a species
A group of organs w/ similar morphology,physiology&behaviour
Group of organisms w/similar morphology,physiology&behaviour
Niche
Animals, plants, bacteria , algae , protozoans, virus'
9
define gene pool
A variety of genes present in a group of organisms
gene pool:consisted of all alleles in all genesInAPopulation
10
How are plant cells different from animal cells
No pit in plant cells
Animal cell has a Golgi apparatus
The plant has a rigid cell wall
The plant cell contains chloroplasts
11
What is the handy-weinburg equation
P2+ 2pq + q2 = 1
P2+ 2pq x q2 = 1
12
What is cellulose
Polysaccharide
disulfide bridge
Muscle
Monosaccharide
13
A useful plant fibre is :
None
Short thin flexible
Short , thick , strong , rigid
Long , thin , flexible , strong
14
did witherling get the right dosage for digitalis
No
Yes
15
Narrow fluid filled channels are called
Plasmodesmata
Xylem
Sclerenchyma
16
How are seeds adapted
Provide nutrients
Aid dispersal
All of above
Protect the embryo
17
in what process is salt pumped across membranes Using energy from ATP
Active transport
Diffusion
Osmosis
18
What is the most impressive thing about mr ewart
Escaped a bog
Knows a cure for back spots
Is Scottish
Used to be a parquor runner
19
What is parenchyma
A type of tissue surrounding the liver
A type of tree
A type of cell
A type of plant tissue found throughout a plant
20
What's the function of the sclerenchyma fibres
To form tubes for transport of organic solutes
To transport water and minerals
To help stiffen cell walls , providing support.
To form a epithelial layer
21
What's adhesion
Hydrogen bonds between water molecules and the cell wall
ester bonds between cell walls
22
Name the 5 kingdoms
mammal, reptile, amphabilian, insect , fish
Animal plant bacteria fungi protocista
Animal plant eukaryotes, prokaryotes , fungi
Animal , plant , fungi ,protosiata, prokaryotae
23
What is a sieve plate
Perforated end walls (in plants)
Perforated muscles
24
Brown spots on leaves show what
Lack of calcium
Lack of magnesium
25
What are mountain chickens
Frogs
Chickens
