BIOLOGY (1-5 Flashcards
(53 cards)
M
R
S
G
R
E
N
-movement
-reproduction
-sensitivity
-growth
-reproduction
-excretion
-nutrition
movement is???
action made by the organisims cuasing a change in position of place
-change in position or place
respiration is???
-a chemical reaction that takes place in the cell that breaks down nutrients molecules and releases energy for metabolism
-a chemical reaction that occurs in the cells
sensitivity is ??????
ability to sense stimuli in INTERNAL or EXTERNAL environments and make appropriate responses
growth
-permanent increase in size
- dry mass by an increase in cell number or both
reproduction
process that makes more of the same type of organism
excretion
- removal from organisms of waste products of metabolism
-toxic materials and excess substances
(eg. pee (urea) , carbon dioxide , NOT poop)
nutrition
taking in materials for growth energy and development
define species
a group of organisms that can reproduce to produce fertile offsprings
binomial naming system
- a way to make classification standard
scientific name consist
genus and species
-genus (capital letters)
-species ( lower case & underline when written or italic when printed)
why do we classify organisms?
-to identify those at risk of extinction
-to understand evolutionary relationship
HOW do we classify organisms
studying :
morphology and anatomy
morphology is?
study of form or outward appearance of organisms
anatomy is?
study of internal structure by dissection
whats a more accurate way of classification ?
sequences of DNA and amino acids in protein
what unique about each species?
-each species has a unique number of chromosomes
- sequence of bases in DNA making each species different from other species
- organisms with recent ancestors have more DNA that’s more similar than distant
all living things classify under:
kingdom (5) , phyllum , class , family ,genus , species
(kids prefer candy -over- fried green spinach)
all living things have certain features in common like :
presence in cytoplasm , cell membrane , DNA ( genetic material)
- ribosomes
what do u know about viruses?
characteristics **
- Have a central core of RNA and DNA
- Surrounded by a protein coat
- No nucleus, cytoplasm, cell organelles, or cell membrane
- Do not feed, excrete, respire, or grow
- Virus particles are not cells.
- Reproduce inside living organisms using materials from the host cell)
what are ribosomes and what do they do?
- ribosomes are in cytoplasms
-they float freely or attached to membranes called rough endoplasmic reticulum (RER) - make proteins and enzymes involved in respiration
dichotomous keys are?
-used to identify organisms
-each key made of contrasting features
(dichotomous mean 2 branches)
whittakes 5 kingdoms ARE?
animal (Animalia) , plant (plantae) , fungus ( fungi) , prokaryote , procristayote (protocist)
animal / animalia are
-multicellular organisms
-no cell wall or chloroplast
-divided into vertebrate and arthrpods