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36 Cards in this Set
- Front
- Back
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What are the three ways protozoa move? |
Flagella Cilia Pseudopodia- temporary extension that helps move it along |
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There is another group that does not appears to have any form of locomotion. Name a disease caused by a member of this group |
Malaria |
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Name three other protozoan diseases |
Trichomonas, toxoplasmosis, gardia lambia |
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Where are protozoa found? |
Marine, fresh water and terrestrial environments |
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What do protozoa do? |
They maintain the balance of bacteria and fungi in soil by devouring large quantities. Important decomposes. |
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Give an example of a systemic fungal infections and a superficial one. |
Aspergillosis and athletes foot or ringworm |
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What are the two forms of fungi? |
Yeasts and moulds |
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How do yeasts grow? |
Through binary fission or budding |
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What is a mycelium? |
A collection of hyphae. |
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What component is in cell walls that decides if the bacteria is gram negative or gram positive? And what is it used for |
Petitdoglycan It's the first step in species identification |
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Draw these |
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What are the two groups of bacteria? |
Archae and eubacteria |
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What are the main features of a bacteria |
Have no true nucleus No membrane bound organelles DNA is in a continous loop Divides by binary fission |
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Label this |
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State one main function of capsule |
Protects pathogenic bacteria from phagocytosis |
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State one main function of cell wall |
Rigid structure that maintains shape and offers protection from osmotic pressure |
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State one main function of cell membrane |
Selective permeable membrane that allows some molecules to pass |
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State one main function of cytoplasm |
Substance of cell inside the membrane |
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State one main function of ribosome |
Synthesis of proteins |
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State one main function of chromosome |
Contains all the genetic material for the cells metabolism and reproduction |
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State one main function of plasmid |
Extrachromosomal piece of DNA which carry genes for antibiotic resistance |
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State one main function of endospores |
Formed when conditions are unfavourable. Very resistant to heat and drying |
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Things microbes are used in. |
Marmite, yoghurt, wine Bioremedation, agricultural microbiology, biotechnology and genetic modification |
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Complete this table for anaerobic and aerobic |
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What process is cellular respiration |
Catabolic |
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Define metabolism |
Sum of all the chemical processes carried out by living organisms |
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Define anabolism |
Reactions that require energy to synthesis complex molecules from simpler ones |
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Define catabolism |
Reactions that release energy by breaking down complex molecules into simpler ones that can be used as building blocks |
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List three cell. Processes that require ATP |
DNA duplication, protein synthesis, active transport, lipid synthesis, |
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Transcription |
A small section of dNA unzips Free Mrna nucleotides base pair with the exposed bases of the gene A molecule of mRNA is formed The mRNA breaks bree from the DNA The DNA zips back up to reform the double helix the Mrna leaves the nucleus through the pores in its membrane |
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Translation |
In the cytoplasm a ribosome attaches itself to the end of the mRNA molecule. The ribosome moves along the Mrna step by step and translates the base sequence tRNA molecules bring amino acids to the mRNA Amino acids are linked together one after another by peptide bonds to form a protein |
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Six functions of proteins in the body |
Chemical messages that help control the body: some hormones Resistance to disease: antibodies Haemoglobin: helps transport O2 Contractile proteins Structural proteins Enzymes |
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Function of steroids |
Bile salts are needed for the absorption of dietary lipids. |
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What's the word equations for triglycerides |
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What's the word equation for proteins |
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What's facilitated diffusion |
Net movement of particles from an area of high concentration to an area of. Low concentration with aid from a protein transporter |
