Biology Terms Flashcards

1
Q

Micro-organism(Microbe)

A

A microscopic organism that may exist in a colony of cells or in single-celled form.

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2
Q

Microscope

A

A laboratory instrument that is used when examining small objects that cannot be seen with the naked eye..

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3
Q

Microbiologist

A

A scientist which studies microscopic life forms and their processes.

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4
Q

International System of Units (SI System)

A

The international standard for measurement also commonly known as the metric system.

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5
Q

SI Unit

A

SI units are what make up the SI system, they are made up of 7 bases which are used for defining 22 derived units.

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6
Q

SI Prefix

A

Used to form decimal multiples and submultiples of SI units and are used to avoid very large and very small numeric values.

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7
Q

Meter

A

The base unit of length in the International System of Units

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8
Q

Millimeter

A

A unit of length in the International System of Units, equal to one thousandth of a meter.

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9
Q

Micrometer

A

The micrometer is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria.

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10
Q

Nanometer

A

A unit of length in the International System of Units, equal to one billionth of a meter.

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11
Q

Viruses

A

An infective agent that that is too small to be seen with the naked eye and is able to multiply only within the living cells of a host.

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12
Q

Bacteria

A

Microscopic organisms not visible with the naked eye which sometimes have agents that can causes diseases.

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13
Q

Protista

A

Any eukaryotic organism that is not an animal, plant, or fungus

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14
Q

Fungi

A

A group of spore-producing organisms feeding on organic matter, including moulds, yeast, mushrooms, and toadstools.

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15
Q

Prokaryote

A

A single-celled organism which has neither a distinct nucleus with a membrane nor other specialized organelles

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16
Q

Eukaryote

A

Organisms whose cells have a nucleus enclosed within a nuclear envelope

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17
Q

Unicellular

A

A single-celled organism, is an organism that consists of a single cell.

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18
Q

Multicellular

A

Organisms that consist of more than one cell.

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19
Q

Genetic Material

A

Also called DNA or RNA, DNA is the hereditary material found in the nucleus and cytoplasm that determines the composition of an organism.

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20
Q

Nucleus

A

A membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms.

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21
Q

Membrane-bound

A

A characteristic of eukaryotic cells, are micrometer large and easily identifiable by microscopy.

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22
Q

Organelles

A

A number of organized or specialized structures within a living cell.

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23
Q

Mitochondrion

A

A double membrane-bound organelle found in most eukaryotic organisms

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24
Q

Chloroplasts

A

Organelles that conduct photosynthesis.

25
Binary Fusion
Asexual reproduction where the organism duplicates its genetic material into two new parts.
26
Mitosis
A means of asexual reproduction of division by a cell into two daughter cells which are identical to the parent.
27
Phylogenetic Tree
Diagrams that display the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
28
Tree of Life
A metaphor which promotes the idea that all life is related by common descent.
29
Kingdoms
A taxonomic rank that is composed of smaller groups.
30
Common Ancestor
A concept in evolutionary where one species is the ancestor of two or more species later in time.
31
Evolve
A process of natural selection where there is a change in characteristics of a species over a certain amount of time.
32
Acellular
Not made up of cells or divided into cells.
33
Denitrification
The process of reducing nitrate and nitrite to gaseous forms of nitrogen.
34
Nitrogen Fixing Bacteria
A chemical process by which nitrogen in the air is converted into ammonia or related nitrogenous compounds in soiL.
35
Decomposers
An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
36
Autotrophs
Organism that is able to form nutritional organic substances from simple inorganic substances.
37
Parasitism
Organism that lives on and derives all requirements from a host, in turn damaging it.
38
Mutualism
Relationship between two different species where both species benefit.
39
Commensalism
Relationship where one partner benefits however the other does not nor is it harmed.
40
Vector
An organism that transmits a pathogen from one host to another.
41
Primary Host
A host in which the parasite reaches maturity and, if applicable, reproduces sexually.
42
Secondary Host
An organism that harbors the sexually immature parasite.
43
Malaria
A parasitic diseases caused by a protist of the genus plasmodium, transmitted by mosquito.
44
Tuberculosis
An infectious disease caused by Mycobacterium tuberculosis.
45
HIV/AIDS
Sexually transmitted virus caused by Human Immunodeficiency Virus.
46
Thrush
A fungal infection that is caused by various Candida species.
47
Retrovirus
A type of virus that uses a special enzyme called reverse transcriptase to translate its genetic information into DNA.
48
Opportunist Infections
Conditions that attack the body when the immune system is weak.
49
Prophylaxis
The prevention of a specific disease.
50
Anaerobic respiration(fermentation)
A non-oxygen-requiring pathway for breaking down glucose.
51
Traditional Biotechnology
Ancient/pre industrial ways in which living organisms were used to develop or adapt product.
52
Antibiotic
Chemical substance that destroys bacteria.
53
Immune Response
A reaction which occurs within an organism for the purpose of defending against foreign invaders.
54
Natural Immunity
Immunity that is naturally existing and does not require prior sensitization to an antigen.
55
Pathogen
Any organism that can produce disease.
56
Cilia
Fine hair like projections in the respiratory tract that sweep in unison and help to sweep away fluids and particles.
57
Inflammation
Your body's process of fighting against things that harm it, such as infections, injuries, and toxins, in an attempt to heal itself.
58
Fever
An abnormally high body temperature.