Biology Core Revision Questions

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Arrange these groups in the correct order: genus, class, family, phylum, species, order, kingdom
kingdom, phylum, class, order, family, genus, species
1 of 118
Which phylum has a supporting rod that runs along the length of the body?
Chordata
2 of 118
To which classes do the following belong to: owl, herring, lion, frog, lizard
bird, fish, mammal, amphibian, reptile
3 of 118
Which kingdom has single cells, no true nucleus, a cell wall, plasmids and no organelles such as mitochondria?
Prokaryotes
4 of 118
Which class of organisms is homeothermic, viviparous and uses lungs for gas exchange?
Mammals
5 of 118
Every organism is known by its genus and species name. What do we call this method of naming?
Binomial system
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Which kingdom is multicellular, has nuclei, cell wall, no chloroplast and feeds off decaying material?
Fungi
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Which class is poikilothermic, uses gills for gas exchange and is oviparous?
Fish
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What term describes groups of closely related populations living in neighbouring areas?
Ring species
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Which group of organisms look and behave the same and can breed to produce fertile offspring?
Species
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What term describes organisms that are born when two different species breed?
Hybrid
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Which term describes animals that give birth to live young?
Viviparous
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Which kingdom is multicellular, has chloroplast, cell wall, nuclei and shows autotrophic nutrition?
Plants
13 of 118
Which class of animals are oviparous, poikilothermic and use their skin for gas exchange?
Amphibians
14 of 118
Which type of variation shows no distinct categories and is controlled by many genes?
Continuous
15 of 118
Which type of variation is controlled by a single gene and individuals fall into a set category?
Discontinuous
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Which type of variation would give results plotted as a bar chart?
Discontinuous
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Which type of variation do tongue rolling and blood groups belong to?
Discontinuous
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What term describes the formation of a new species from one original?
Speciation
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Which factors are needed for new species to arise?
Isolation, source of variation and a change in selection pressure
20 of 118
Which term describes an individual who does not show the features of a condition but has a recessive allele?
Carrier
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How many alleles of a gene can an individual have?
2
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Which term describes an individual with two identical alleles of the same gene?
Homozygous
23 of 118
What is the probability that two parents heterozygous for cystic fibrosis will have a child that suffers from it?
1 in 4
24 of 118
Name the control process that regulates conditions such as blood glucose and body temperature
Negative feedback
25 of 118
Which term describes the regulation of a stable internal environment?
Homeostasis
26 of 118
Which part of the brain regulates body temperature?
Hypothalamus
27 of 118
What happens to blood vessels in the skin when we get too hot?
Vasodilation - blood vessels in the skin surface widen
28 of 118
Which two other changes occur in the skin when the body gets too hot?
More sweating, hair lies flat
29 of 118
Vasoconstriction is when blood vessels to the skin widen to increase blood flow to the surface. True or false?
False
30 of 118
What type of gland is responsible for making hormones?
Endocrine gland
31 of 118
Which has the longer lasting effect, hormones or nerves?
Hormones
32 of 118
How are hormones carried in the body?
In the bloodstream
33 of 118
Which term describes the cells that respond to a particular hormone?
Target cells
34 of 118
What is the role of the myelin sheath in the nerve impulse?
Make it faster
35 of 118
What term describes the tiny, branching parts of the neurone?
Dendrites
36 of 118
What are junctions that connect neurones known as?
Synapse
37 of 118
Which two parts of the body make up the central nervous system?
Brain and spinal chord
38 of 118
Which type of neurones conduct impulse from the CNS to effectors/muscles?
Motor neurone
39 of 118
Which type of neurones conduct impulses from receptors to the CNS?
Sensory
40 of 118
Which responses are fast, automatic and need no conscious thought?
Reflex
41 of 118
Identify 7 different examples of stimuli that receptors are sensitive to?
Touch, pain, temperature, taste, sound, light, pressure
42 of 118
What effect does insulin have on the liver cells?
Make it covert glucose to glycogen
43 of 118
Which hormone is responsible for increasing blood glucose concentration?
Glucagon
44 of 118
Which type of diabetes is caused by a failure to make insulin?
Type 1
45 of 118
Which type of diabetes is often caused by obesity and a high sugar diet?
Type 2
46 of 118
If the blood sugar level of a diabetic is too high will they need more or less insulin?
More insulin
47 of 118
Diabetics must not have any sugar in their diet. True or False?
False
48 of 118
Name the plant hormone that stimulates the tips of the shoots to grow
Auxin
49 of 118
When a shoot is exposed to the light where does the hormone build up, the side in the shade or the light?
Shaded side
50 of 118
Does auxin stimulate growth in roots or inhibit it?
Inhibit
51 of 118
Which hormone controls seed germination and flowering?
Gibberellins
52 of 118
How does rooting powder help plant cuttings to grow?
Rooting powder contain auxins that stimulate the cutting to make roots
53 of 118
List 3 commercial uses of plant hormones
Weedkillers, seedless fruits, fruit ripening
54 of 118
Drugs are ... that affect the ... ... ... they cause changes in ... and can become ...
Chemical/central nervous system/ behaviour/ addictive
55 of 118
When you get used to having a drug what do they develop?
Tolerance
56 of 118
What term describes the physical need for a drug?
Addiction
57 of 118
If an addict fails to take a drug what do they develop?
Withdrawal symptoms
58 of 118
What type of drug causes the nervous system to slow down its responses?
Depressants
59 of 118
What type of drug changes the way we see and hear things?
Hallucinogens
60 of 118
What type of drug increases brain activity and speeds up response times?
Stimulants
61 of 118
What type of drugs are the following --> a) morphine b) caffeine c) alcohol d) LSD
a) painkiller/analgesic b) stimulant c) depressant d) hallucinogen
62 of 118
Tobacco smoke contains carbon monoxide. What effect does this have on the blood?
Carbon monoxide combines with haemoglobin preventing it from carrying oxygen. Blood carries less oxygen
63 of 118
How might babies be affected by their mothers smoking during pregnancy?
Low birth weight
64 of 118
Tobacco smoke contains tar which also contains carcinogens. What does a carcinogen do?
Carcinogens cause cancer/mutate DNA
65 of 118
Which component of cigarette smoke is addictive and can cause heart disease?
Nicotine
66 of 118
What can happen to the liver after long term alcohol abuse?
Cirrhosis or liver cancer
67 of 118
What do we call microorganisms that cause disease?
Pathogen
68 of 118
Bacteria, fungi, viruses and protozoa are all examples of...?
Microbes or microorganisms
69 of 118
This particular pathogen is carried in contaminated drinking water and causes diarrhoea and dehydration
Dysentery
70 of 118
This pathogen can be transmitted in contaminated food such as chicken and eggs
Salmonella
71 of 118
How is the influenza virus transmitted?
Airborne or droplet transmission
72 of 118
Which pathogen is transmitted by the anopheles mosquito?
Malaria
73 of 118
What term describes the mosquito in this situation?
Vector
74 of 118
Goblet cells line the airways in the lungs. How does this help to prevent bacteria reaching the lungs?
Goblet cells make mucus which traps bacteria
75 of 118
What part do the cilia play in preventing infection of the lungs?
Cilia sweep the mucus out of the airways
76 of 118
How does the stomach prevent bacteria infecting the rest of the gut?
The stomach produces hydrochloric acid which kills bacteria
77 of 118
Which microorganism is responsible for making antibodies?
Fungi
78 of 118
Give an example of an antibiotic
Penicillin/ ampicillin/ amoxicillin/ erythromycin
79 of 118
Why are antibiotic useless when treating a cold or flu?
Colds and flus are caused by viruses, antibiotics only work on bacteria
80 of 118
Why are doctors more reluctant to prescribe so many antibiotics?
Bacteria build up a resistance
81 of 118
What is Methicillin-resistant Staphylococcus aureus otherwise known as?
MRSA
82 of 118
Where are the above bacteria most dangerous in our society?
Hospitals
83 of 118
How do organisms such as bacteria become resistant to antibiotics?
Mutation
84 of 118
Name the process by which plans use energy from sunlight to make sugars from carbon dioxide and water
Photosynthesis
85 of 118
In a food chain what are species such as herbivores known as?
Producers
86 of 118
Which trophic level do the plants usually occupy?
First trophic level
87 of 118
In a food chain what are species such as herbivores known as?
Primary producers
88 of 118
Which trophic level do herbivores usually occupy?
Second
89 of 118
How is energy lost when a herbivore eats a plant?
Not all the plants are eaten, roots left uneaten, cellulose is very hard to digest
90 of 118
How do animals like herbivores and carnivores lose energy along a food chain?
Respiration/ heat loss/ movement/ excretion
91 of 118
Why don't food chains ever have more than 5 trophic levels?
Energy is lost at each step
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What happens to the biomass of organisms at each level as you go higher up a food chain?
Biomass of the population decreases
93 of 118
What do we call organisms that live in or on other organisms, causing them harm and only benefitting themselves?
Parasites
94 of 118
Name two organisms that live on the skin or fur of animals and cause them harm by sucking their blood?
Fleas, ticks or lice
95 of 118
Which parasite grows on trees and absorbs the water and stars that the tree makes?
Mistletoe
96 of 118
What do we call a relationship where both members benefit?
Mutualism
97 of 118
Which birds live on the backs of a buffalo and feed off the ticks and flies on their skin?
Oxpecker bird
98 of 118
Which bacteria live in the roots of plants such as clover and beans?
Nitrogen fixing bacteria
99 of 118
How does the plant benefit from this relationship?
They provide it with nitrogen or nitrates, help it to make protein
100 of 118
Which form of nitrogen is contained in fertilisers used by modern day farmers?
Nitrates
101 of 118
Why do modern farming methods need us to use more and more fertiliser?
Larger populations to support in same amount of land
102 of 118
If fertiliser is washed into lakes and rivers it stimulates growth of which organism?
Algae
103 of 118
Which condition in lakes an river si caused by excessive growth followed by death and decay of algae?
Eutrophication
104 of 118
Some species can tolerate lost of pollution and others can't. Their presence in water allows us to assess the level of pollution. What do we call these organisms?
Indicator species
105 of 118
If a river contains lots of stonefly and mayfly nymphs what can you say about the level of pollution?
Water is unpolluted
106 of 118
Which polluting gas in the atmosphere are lichens very sensitive to?
Sulphur dioxide
107 of 118
Which gas in the atmosphere do plants use of photosynthesis?
Carbon dioxide
108 of 118
Name the process carried out by plants and animals that returns carbon dioxide to the atmosphere?
Respiration
109 of 118
What type of nutrition do decomposers such as bacteria and fungi show?
Saprophytic nutrition
110 of 118
Which process returns fossil fuels such as gas and coal back to the atmosphere?
Combustion
111 of 118
Which mineral/element do plants and animals need to make proteins?
Nitrogen
112 of 118
Which bacteria convert ammonia back to nitrates in the soil?
Nitrifying
113 of 118
Which bacteria convert nitrogen gas in the atmosphere to plant protein?
Nitrogen fixing
114 of 118
What gas is the end product of decomposition of protein in dead plants?
Ammonia
115 of 118
How does paper recycling help to save the environment?
Fewer trees have to be cut down to make paper
116 of 118
What gas is the end product of decomposition of protein in dead plants?
Ammonia
117 of 118
How does paper recycling help to save the environment?
Fewer trees have to be cut down to make paper
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Other cards in this set

Card 2

Front

Which phylum has a supporting rod that runs along the length of the body?

Back

Chordata

Card 3

Front

To which classes do the following belong to: owl, herring, lion, frog, lizard

Back

Preview of the front of card 3

Card 4

Front

Which kingdom has single cells, no true nucleus, a cell wall, plasmids and no organelles such as mitochondria?

Back

Preview of the front of card 4

Card 5

Front

Which class of organisms is homeothermic, viviparous and uses lungs for gas exchange?

Back

Preview of the front of card 5
View more cards

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