Biology

WHAT ARE THE SI PREFIXES nano- 10-9 micro- 10-6 milli- 10-3 centi- 10-2 deci- 10-1 kilo- 103 mega- 106 giga- 109 WHAT ARE THE FUNCTIONS OF THESE ANIMAL CELLULAR COMPONENTS(EUKARYOTIC)? Nucleus-Contains genetic material that controls the activities of the cell. Mitochondria-These are the where most of the aerobic respiration takes place, transferring the energy which the cell needs in order to work Cytoplasm-This is where most of the chemical reactions happen, it contains enzymes which c...

Bactericidal - ANSWER kills bacteria antibiotic resistance - ANSWER Resistance evolving rapidly in many species of prokaryotes due to overuse of antibiotics, especially in agriculture. broad spectrum antibiotics - ANSWER affect a broad range of gram-positive or gram-negative bacteria Narrow spectrum antibiotics - ANSWER Effective against specific bacteria Sensitivity - ANSWER Ability to recognize and appreciate the personal characteristics of others subunit vaccines - ANSWER use a...

What does a Nuclues contain? Genetic material that controls the activities of the cell What is cytoplasm and what does it contain? Gel like substance where most chemical reactions happen; contains ezymes What are mitochondria? Site of aerobic respiration and releases energy that cells need to work What does the cell membrane do? Holds the cell together and controls what goes in and out What extra features does a plant cell have compared to an animal cell? Cell wall, chloroplast, vacu...

Which events will occur when outside is too hot and the individual is sweating a lot? -Water content in blood is low -ADH production increases -Effect on nephrons on kidney high water absorption -Urine concentration concentrated How can sexually transmitted diseases be speead Through blood transfusion, skin contact (herpes) and pregnancy/child birth Sharing food or beverages does not transmit sexually transmitted diseases - similarly to respiratory droplet spread, these pathogens need t...

What is the structure and function of the cell membrane? -phospholipid bilayer -it regulates the transport of substances in and out of the cell What is the structure and function of the cytoplasm? -contains enzymes responsible for breaking down waste and aid in metabolic activities. -responsible for giving the cell it's shape What is the structure and function of the nuclues? -contains cell's DNA -controls its growth and reproduction What is the structure and function of the mito...

Animal cell Cell membrane, cytoplasm, nucleus, mitochondrion Plant cell Cell membrane, cytoplasm, nucleus, mitochondrion, cell wall, choroplast, vacuole Bacterial cell Cell membrane, cytoplasm, cell wall, chromosomal DNA (no true nucleus) Levels of organisation Cells to tissues to organs Diffusion Movement of molecules or ions from high to low concentration by relatively slow random movement of molecules. Lungs: carbon dioxide from blood plasma. Osmosis Net movement of water molec...

archaea characteristics - Answer-has pseudopeptidoglycan in cell wall; S layer for cell wall (not exclusive); ether linked lipids in cell membrane (exclusive); has monolayer cell membrane sometimes (exclusive); rapid growth and divide by binary fission; metabolically diverse bacteria characteristics - Answer-has peptidoglycan in cell wall (exclusive); ester linked bilayer lipids in cell membrane (same as humans); rapid growth and divide by binary fission; metabolically diverse fungi charact...

Endoskeleton Internal Skeleton Axial skeleton Skull, vertebral column, rib cage Appendicular skeleton Limbs, Pelvic/pectoral girdles chondrin Makes up cartilage chondrocytes cells that secrete chondrin compact bone Dense Bone, no visible cavities cancellous Spongy Bone trabeculae "Spicules" in spongy bone yellow marrow Inactive marrow, filled with adipose tissue red marrow produces red blood cells spongy bone location of marrow skeletal muscle controlled by som...

science - Answer-study of the physical, natural world through observations & experiments scientific method - Answer-principles & empirical processes of discovery & demonstration considered characteristic of/ necessary for scientific investigation what are the steps of the scientific method? - Answer-(1) observation (2) hypothesis (3) testing/experimenting (4) theory hypothesis - Answer-idea proposed to explain 1 or more facts; must be testable & potentially false scientific theory - Answ...

Anaerobic respiration leads to an O2 debt Which type of resp leads to O2 debt? Anaerobic Aerobic respiration Releases more energy per unit glucose than anaerobic Decrease aerobic resp --- decrease energy available for active transport Which type of resp releases more energy per unit of glucose? Aerobic Total amount of respiration in cell given by amount of CO2 produced (from aerobic respiration) + amount of lactic acid produced (from anaerobic respiration) Ribosome site of prote...