test 1 Flashcards
MRS GREN (M) definition and an example for plant and animal
Movement is defined as an action by an organism causing a change of position or place.
An example for plant is Plant roots moving towards water or sunflower moving towards the sun.
An animal example is a fish swimming or a human walking.
MRS GREN 1st R + example (animal and plant)
Respiration can be defined as the chemical reaction that break down nutrient molecules in living cells to release energy for metabolism.
What are the two types of;es of respiration and their equations
Aerobic (with oxygen) -> glucose + oxygen —> carbon dioxide + water
Anaerobic (without oxygen ) 1) glucose —> lactic acid
2) glucose —> Alcohol + carbon dioxide
MRS GREN (S) + example (animal and plant)
Sensitivity is defined as the ability to detect or sense stimuli in the internal or external environment and to make appropriate responses.
For example the human skin dealing with an increase of temperature
MRS GREN (G) + example (animal and plant)
Growth can be defined as a permanent increase in size and dry mass by an increase in cell number or cell mass or both.
Ex) a plant growing from a seed
Bacteria colony increasing in cell number
A baby growing into an adult
MRS GREN 2nd R + example
Reproduction can be defined as the processes that make more of the same organism.
Are :
Sexual - includes two parents
Asexual - only requires one parent and produces cloned offspring (plant)
MRS GREN (E) + example (animal and plant)
Excretion can be defined as the removal from organism of toxic materials, the waste products of metabolism and substances in excess of requirements
Ex) carbon dioxide being excreted from the organism
MRS GREN (N) + example (animal and plant)
Nutrition can be defined as the taking in of materials for energy growth and development
All organisms including plants and bacteria require nutrients for their survival.
Nutrients can be consumed and ingested or diffused directly into the organism, depending on the organism size and type.
What is autotroph
Organisms that can produce its own food using light, water, CO2, or other chemicals
for example : sunflower
What is a parasite
Organisms that obtains nourishments in or on another organisms, causing harm to the host
Ex) tick
What is Heterotroph
Organisms that cannot produce its own food, instead taking nutrition from (mainly) plant or animal matter.
Ex) human
Saprophyte )
Organisms that derived its nourishment from dead matter ( using extra cellular digestion)
Ex) molds
What makes a drawing good
Big, there is no shading , straight lines , continuous lines without breaks and label lines that touch the structure
Animals cells have what features:
- multicellular (organisms consisting of more than one cell ; the opposite of unicellular)
- cell membrane
- cytoplasm
- nucleus
- mitochondria
- ribosomes
Plant cells features
- multicellular
-regular shape - cell membrane
- cytoplasm
- nucleus
- mitochondria
- ribosomes
- cell wall (made of cellulose)
- chloroplast
- vacuole
Animal and plant cells have what structures in common?
- nucleus
- cell membrane
- cytoplasm
- mitochondria
- ribosomes
Plant cells have 3 structures that animal cells don’t have which are
- chloroplast
- vacuole
- cell wall
Function of a cell membrane
Holds the cell together, separating the inside of the cell from the outside
Controls which substance can enter and leave the cell
Function of a nucleus
Controls all activities in the cell
Controls how cells develop
Function of cytoplasm
Place where many chemical reactions take place, respiration and making proteins for the cell
Ribosomes function
Found in cytoplasm
Make proteins for the cell
Mitochondria
Release energy during aerobic respiration
Provide most of the energy for the cell
Cells that requiere a lot of energy have a lot of mitochondria
