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    citric acid cycle

    a series of enzyme-catalyzed chemical reactions of central importance in all living cells that harvests the energy in carbon-carbon bonds of sugar molecules to generate ATP; the citric acid cycle is an aerobic metabolic pathway because it requires oxygen in later reactions to proceed

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Questions & Answers

what is Actin? I don't understand this definition
Rhonda Reply
Actin is a family of globular multi-functional proteins that form microfilaments. 
Lauren
what is the difference between a vaccine and a antiserum
Silver Reply
An antiserum contains antibodies already produced and is used to pass on immune responses. A vaccine contains a substance that stimulates the production of antibodies to create an immune response.
Nana
A vaccine a preparation of antigens for one (or more) diseases that is given to stimulate active immunity and protect against the disease (s). while an antiserum either neutralizes the "infection " or stimulates your immune system to attack an infection.
Oliver
what is deoxyribonucleic acid
Carlene Reply
A negatively charged molecule; polymer of nucleotides found in the nucleus of a cell ... DNA.
Abayomi
guys u needs your help i am in this conversation but i don't understand what you guys were talking about please i need your help.
Asali
Hi
Janelle
hi
Oliver
to maintain certain biological activities of cell
jeeni Reply
what are difference between maleriya and dengue
Shaili Reply
caused by two different agents.. malaria is caused by Culex mosquito in birds and Anopheles in humans.. while dengue fever is caused by Aedes mosquito
Rayyan
what is immune system
Shaili Reply
system that defends the body against invading microbes n pathogens... (white blood cells makes immune system)
Rayyan
what is interferon's ?
maya Reply
interferon is any group of glycoproteins, produce by the immune system.
Henry
what is immune system
Shaili
the difference between human biology and principles of biology
Henry Reply
human biology is the studying of stucture and of function of the body and the principles of how humans interacts with men, animal and plants around them and the social activities that take place.
Kay-Anna
human biology is the studying of human body structures function in the way of interacting physical and internal. while biology is the study of living and non living things.
shanta
what is Mitosis/Meiosis? What are the similarities and differences?
Abayomi Reply
differences: occurence... one in somatic n other in germ cells no of daughter cells.. 2 and in meisis 4. genetic recombination... only occurs in meiosis during crossing over no. of chromosomes.. remains same in mitosis n reduced to half in meiosis major phases... similar karyokinesis n cytokinesis
Rayyan
karyokinesis... divided into prophase.. meta.. ana.. and telophase... in meiosis.. further division into meiosis 1 and meiosis11 so phases are named as pro1..meta1..ana1..and telo1
Rayyan
differences among phases.. prophase.. other changes similar.. but diff occur in meiosis where synapsis, crossing over,chiasmata formation and tetrad form metaphase... in mitosis chromosomes align at equatorial plate.. in meiosis homologouy chromosomes align at equatorial plate.
Rayyan
anaphase.. in mitosis chromatids gets separated in meiosis chromosomes gets separated.. meiosis 11 is similar to mitosis except that during interkinesis.. duplication in S phase doesnt occur
Rayyan
What is the difference between prokaryotic and eukaryotic organisms
AAlfred Reply
Prokaryotic cell are unicellular, lacks a membrane bound organelles ... e.g bacteria and archea. Eukaryotic cells are multicellular, membrane bound organelles ... e.g Animals, Plants, Fungi, Algae.
Abayomi
what are organelles
Lorella Reply
Organelles are specialized structures in the that perform a specific function. Examples: mitochondrial , Golgi apparatus, etc.
Francis
Organelles are specialized structures in the cell that perform a specific function. Examples: mitochondrial, ribosomes, etc.
Francis
what connect bone to bone
Rebecca Reply
ligaments
Abayomi
what is the function of appendix?
Isaya Reply
it don't have any function
Rebecca
what is a joint
Rebecca Reply
A joint is a place where two bones meet or articulate.
Ebube
what is the function of lysozyme in saliva
Isaya Reply

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Source:  OpenStax, Human biology. OpenStax CNX. Dec 01, 2015 Download for free at http://legacy.cnx.org/content/col11903/1.3
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