1º Exam Flashcards
(26 cards)
Cell Struture
Plasma membrane
Cytoplasm
Genetic Material
What is the biggest cell?
The ovule or the egg.
Wat types of cells do we have ?With its
characteristics
.
Prokaryotic cell
Eukaryotic cell
What is the characteristics of the bacteria?
Small size, Appendages and lack of organelles and nucleus.
Characteristics of plant cells.(and algae)
Cell wall , large vacoules and chloroplast.(appendages in some cases, one celled algae).
What produces the color green of plants ?
The chloroplast that produce chlorophyll.
What is the basic unit of life?
the cell.
What is nutrition?
It is the process which cells in living organism take subtances that they need to survive.(They are called nutrients).
By which thing do we need nutrients?
We need it to repare tissues , get energy to continue with live and to regulate main the bodies functions.
Inorganic and Organic
INORGANIC: they are simple substance that we only can find it in nature.(all living organism)
ORGANIC: they are complex substance that are produce by living organism.(this are the substance that gives energy ).
Autotrophic and Heterotrophic organism
AUTOTROPHS: They produce the organic nutrients but they take the inorganic.
HETEROTROPHS: They teke both nutrients( organic and inorganic).
What it is photosynthesis ?
The photosynthesis is a complex process where plants trasform inorganic nutrients into organic with CO2 ,light and water.
Does the light give energy to the plant?
No it doesn’t give energy. It helps to make the photosynthesis.
What is digestion?
Digestion is the process which heterotrophic organism break down food and take the substance that their cells need.
What is metabolism?
The metabolism is how we call the chemical reaction that produce life.
What gives the nutrients ?
They give us matter and energy.
What is the cellular respiration?
It is a chemical reaction that that transform the oxygen and the organic nutrients into energy. The waste is CO2 and water.
Where it takes place the cellular respiration?
It takes place in the mitochondria.
What is the excretion?
The excretion is the process where living organism expel waste substance into the environment.
What is the reproduction ?
It is when living organism produce new living organism.
Asexual and Sexual reproduction:
ASEXUAL: It is the process when a living organism creates new (identical) living organism without the paticipation of another living organism.
SEXUAL: It is the process when two living organism of same specy cooperate to create a new living organism (the descendents have mix of their parents characteristics but they are noy identical).
What are the clones ?
The clones are identical copies of a living organism including they same genetic material.
Does some eukaryotic cells have the asexual reproduction?
Yes it can have the asexual (unicellular organism) or sexual (multicellular organism).
Asexual reproduction
Biparticion, Budding ,Spore formation and fragmentation.
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