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Biology > B5 > Flashcards

B5 Flashcards

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1
Q

What is the Binomial naming sytem

A

It combines the Genus and species to give a name to a species

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2
Q

What is the order of the linnean sytem

A

Kingdom
Phylum
Class
Order
Family
Genus
Species

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3
Q

What are the rules when writting a species name

A
  • written in italic
  • only capitolise the first letter of the genus name
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4
Q

How can plants reproduce

A

asexually and sexually

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5
Q

How can animals reproduce

A

mostly sexually

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6
Q

Define fertilisation

A

Fusion of a male and female gamete

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7
Q

What is the result of sexual reproduction

A

A genetically different organism from its parents

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8
Q

What are gametes in plants

A

pollen and eggs

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9
Q

What are gametes in animals

A

Sperm and egg

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10
Q

What is a gamete

A

A sex cell used in sexual reproduction that contains half of the gentic material of a normal cell

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11
Q

How many chromasomes are in a human gametes

A

23

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12
Q

Does sexual reproduction require sex

A

No. Sexual reproduction is about gametes

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13
Q

What is the product of Asexual reproduction

A

A genetically identical offspring
(no genetic varitation)

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14
Q

Does Asexual reproduction require gametes

A

No. Gametes are not used in asexual reproduction

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15
Q

How many parents are involved in Asexual reproduction

A

1 parent

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16
Q

How do Eukaryotic cells Asexually reproduce

A

mitosis

17
Q

What are examples Eukaryotic organisms that can Asexually reproduce

A
  • Plants
  • Fungi
18
Q

How do plants and fungi Asexually reproduce

A

Through Mitosis

19
Q

How do bacteria reproduce

A

Binary Fission

20
Q

How do Prokaryotic organisms asexually reproduce

A

Binary Fission

21
Q

What type of pathogen is E. coli

A

bacteria

22
Q

What is the digestives styem first line of deffence against pathogens

A

Stomach acid

23
Q

What acid is found in the stomach

A

hydrochloric acid

24
Q

What is the name of the chemical on a pathogen that stimulates and immune response

A

antigen

25
Q

What is the name of the process when white blood cells engulf a pathogen?

A

phagocytosis

26
Q

What sytem in the body is affected by AIDs/HIV

A

Immune sytem

27
Q

What STIs can be treated with antibodies

A

gonorrhoea
Staphylococcus aureus
chlamydia

28
Q

What type of response does the immune sytem give out on its first exposure to a pathogen

A

Primary immune response

29
Q

On exposure to an antigen, B lymphocytes divide into what two cells?

A
  • antibody-producing lymphocytes (plasma cells)
    -memory lymphocyte
30
Q

What is the disease that causes plants to have “mosaic-like” discolouration of the leaves.

A

tobacco mosaic virus

31
Q

What does TMV stand for

A

tobacco mosaic virus

32
Q

What is the function of a cillia cell

A

waft the mucus to the back of the throat

33
Q

What type of pathogen is tobacco mosaic disease

A

virus

34
Q

How can Plant diseases can be detected?

A
  • DNA
    -antigens
35
Q

What part of the blood helps to clot and close up a wound

A

platelets

Biology (6 decks)

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