B1 - MRS GREN Flashcards
define Movement
an action done by an organism causing a change in position or place
Plants cant move places, what is that called
locomotion
Define Reproduction
process that makes more of the same kind of organism
what are the 2 types of reproduction and give some examples
sexual- animals, humans, flowering plants
asexual- bacteria, fungi
define Sensitivity
the ability to detect and respond to changes in the internal and external environment
define Growth
permanent increase in size and dry mass
what are 2 ways growth can be measured
change in size
number of cells
define Respiration
a chemical process where nutrients molecules are broken down and release energy for metabolism
When does respiration occur and is it the same as breathing
all the time, no
define Excretion
removal of waste products for metabolism and substances in excess of requirement
note: needs to enter cells
Give some examples of excretion and is it the same as egestion
Carbon dioxide, transpiration in plants
no
Define Nutrition
taking in of materials for energy, growth and development
is nutrition the same as eating
no
is bacteria a living thing
yes
is virus a living thing, why
no, they cannot reproduce on their own - they use other organism cells to reproduce