Biology (Additional)

Descrição

Quiz sobre Biology (Additional), criado por Sian Woods em 26-05-2017.
Sian Woods
Quiz por Sian Woods, atualizado more than 1 year ago
Sian Woods
Criado por Sian Woods aproximadamente 7 anos atrás
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Resumo de Recurso

Questão 1

Questão
Which of these are characteristics of an animal cell?
Responda
  • Cell Wall
  • Cell Membrane
  • Cytoplasm
  • Nucleus
  • Mitochondria
  • Vacuole

Questão 2

Questão
Which of these are characteristics of a bacterium cell?
Responda
  • Plasmids
  • Chlorophyll
  • Chromosomal DNA
  • Nucleus
  • Flagellum
  • Cell wall

Questão 3

Questão
What does a light microscope show?
Responda
  • Inside of mitochondria
  • Outside of Mitochondria
  • Inside of chloroplasts
  • Outside of Chloroplasts
  • Nuclei

Questão 4

Questão
Which of these formulae are correct?
Responda
  • Magnification = image height / object height
  • Magnification = object height / image height

Questão 5

Questão
A stand of DNA has a...
Responda
  • triple helix structure.
  • double helix structure.
  • single helix structure.

Questão 6

Questão
Which of these are the correct base pairs?
Responda
  • Adenine-Thymine
  • Cytosine-Guanine
  • Guanine-Thymine
  • Cytosine-Adenine

Questão 7

Questão
Base pairs are joined by...
Responda
  • Weak hydrogen bonds
  • Strong hydrogen bonds
  • Weak hydrogen fibres
  • Strong hydrogen fibres

Questão 8

Questão
Who discovered the double helix structure?
Responda
  • Watson and Crick
  • Franklin and Wilkins
  • Watson and Wilkins
  • Franklin and Crick

Questão 9

Questão
Watson and Crick used this idea and their knowledge of _________ to make a model of a DNA molecule.
Responda
  • Base pairs
  • Amino acids
  • Proteins
  • Genes

Questão 10

Questão
Proteins are made from...
Responda
  • amino acids
  • hydrogen
  • Chloroplasts
  • Ribosomes

Questão 11

Questão
What is mRNA?
Responda
  • A single strand molecule and has the base uracil (U).
  • A double helix structure.
  • A single strand molecule and has the base adenine (A).
  • A single strand molecule and has the base cytosine (C).

Questão 12

Questão
Which is the correct order of protein synthesis?
Responda
  • DNA unzips, Transcription, mRNA joins a ribosome, amino acids are brought to the ribosome by tRNA, ribosome sticks them together to make a polypeptide (protein), translation.
  • Translation, DNA unzips, transcription, mRNA joins ribosome, amino acids are brought to the ribosome by tRNA, ribosome sticks them together to make a polypeptide (protein).
  • Amino acids are brought to the ribosome by tRNA, ribosome sticks them together to make a polypeptide (protein), translation, DNA unzips, transcription, mRNA joins ribosome.

Questão 13

Questão
Mutations can be...
Responda
  • Harmful
  • Beneficial
  • Neutral
  • All of these

Questão 14

Questão
What are enzymes? (Select two)
Responda
  • Biological catalysts
  • Proteins
  • Organelles
  • Cells

Questão 15

Questão
How do enzymes work?
Responda
  • Finds it's specific substrate that fits the active sight, the 'lock and key' mechanism.
  • Finds any substrate to react with
  • Finds two or more substrates and makes them one

Questão 16

Questão
A higher temperature means...
Responda
  • faster reactions.
  • slower reactions.
  • nothing.

Questão 17

Questão
If it is to hot the enzyme will...
Responda
  • denature.
  • denurture.
  • disconnect.

Questão 18

Questão
What does denature mean?
Responda
  • The enzyme alters in shape and breaks down other substrates than it usually would.
  • The enzyme loses its shape and can't break down substrates.
  • The enzyme loses its shape but continues to work.

Questão 19

Questão
What else denatures an enzyme (other than temperature)?
Responda
  • pH
  • Ph
  • Concentration of substrates

Questão 20

Questão
What else effects the rate of reaction of enzymes?
Responda
  • Concentration (to a certain extent)
  • Light intensity
  • Concentration (continually)

Questão 21

Questão
Which of the following are benefits of the Human Genome Project?
Responda
  • Develops new and better medicines
  • Improves forensic sciences
  • Discrimination from employers/insurers
  • Geneism

Questão 22

Questão
What are the benefits of genetic engineering? (select the answers with the correct examples)
Responda
  • Reduce vitamin A deficiency (golden rice with beta carotene)
  • Reduce vitamin A deficiency (with supplements)
  • Producing human insulin (human farming)
  • Producing human insulin (insulin-producing bacteria)
  • Increasing crop yield (weather resistant crops)
  • Increasing crop yield (herbicide resistant crops)

Questão 23

Questão
Which of the following show the correct method of genetic engineering?
Responda
  • Useful gene cut out of chromosome using bacteria, bacterium used to cut open another chromosome, useful gene inserted into cut chromosome.
  • Useful gene cut out of chromosome using enzymes, enzymes used to cut open another chromosome, useful gene inserted into cut chromosome.
  • Useful gene cut out of chromosome using microscopic knife, microscopic knife used to cut open another chromosome, useful gene inserted into cut chromosome.

Questão 24

Questão
Controversy connected with genetic engineering?
Responda
  • Reducing biodiversity.
  • GM crops aren't safe.
  • GM crops may not be completely safe.
  • Could effect the natural environment where it shouldn't.

Questão 25

Questão
What are human body cells?
Responda
  • Haploid (23 chromosomes)
  • Diploid (23 chromosome pairs)

Questão 26

Questão
Mitosis is for...
Responda
  • sexual reproduction.
  • asexual reproduction.
  • growth and repair.

Questão 27

Questão
Which of the following is mitosis?

Questão 28

Questão
Gametes are...
Responda
  • Diploid (23 chromosome pairs)
  • Haploid (23 chromosomes)

Questão 29

Questão
Zygotes are...
Responda
  • Diploid (23 chromosome pairs)
  • Haploid (23 chromosomes)

Questão 30

Questão
Which of the following is meiosis?

Questão 31

Questão
Cloning is an example of what?
Responda
  • Asexual reproduction
  • Sexual reproduction

Questão 32

Questão
This is the process of cloning mammals, what are the issues in doing so?
Responda
  • Reduced gene pool (fewer alleles)
  • Shortened lifespan
  • Preserves endangers species
  • Better understanding of ageing and age-related disorders

Questão 33

Questão
Cells in an embryo are...
Responda
  • differentiated.
  • undifferentiated.

Questão 34

Questão
Stem cells can turn into...
Responda
  • any type of cell.
  • specific types of cell only.

Questão 35

Questão
Positives of stem cell research?
Responda
  • Can be used to cure diseases (sickle cell anaemia)
  • Can be specialised to replace damaged ones
  • Embryos are potential lives so shouldn't be used.

Questão 36

Questão
Which is the correct equation for aerobic respiration?
Responda
  • glucose + oxygen ---> carbon dioxide + water (+energy)
  • glucose ---> lactic acid (+energy)

Questão 37

Questão
What are the reactants in photosynthesis?
Responda
  • carbon dioxide
  • water
  • oxygen
  • glucose

Questão 38

Questão
What are the products of photosynthesis?
Responda
  • carbon dioxide
  • water
  • glucose
  • oxygen

Questão 39

Questão
What are the limiting factors of photosynthesis?
Responda
  • Light intensity
  • Water concentration
  • CO2 concentration
  • Temperature

Questão 40

Questão
Which of the following adaptions help photosynthesis? (Some of these are written wrong)
Responda
  • Broad leaves
  • Chlorophyll
  • Thick
  • Small surface area

Questão 41

Questão
The movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration. What is this the description for?
Responda
  • Osmosis
  • Diffusion

Questão 42

Questão
Which part of a plant transports water and mineral from the roots to the rest of the plant?
Responda
  • Xylem
  • Phloem

Questão 43

Questão
Which part of a plant transports sugars from the leaves to growing and storing tissues?
Responda
  • Xylem
  • Phloem

Questão 44

Questão
What is transpiration? (Select two)
Responda
  • The loss of water from a plant caused by evaporation and diffusion.
  • The gain of water to a plant caused by osmosis and active transport.
  • The loss of water from a plant caused by diffusion only.
  • The gain of water to a plant caused by osmosis only.

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