Respiration
Define respiration
the release of energy from food
root, stem, leaves, flower
define density
the density of a material is the mass per unit volume of a material
what happened to the rate of photosynthesis when the light intensity increased
the rate of photosynthesis increased
Define aerobic and anaerobic respiration
aerobic : The release of energy from food when oxygen is present, anaerobic : the release of energy from food when oxygen is not present
Give functions for all 4 parts of the plant
root: anchors the plant, leaves : gas exchange, stem : transports water and nutrients, flower : attracts insects for pollination
density formula
density = mass/volume
what happened to the amount of oxygen bubbles produced when the rate of photosynthesis increased?
the amount of oxygen bubbles increased
Respiration word equation
glucose + oxygen = energy + carbon dioxide + water
Define factor
a factor is anything living or non - living that affects something else
how would you calculate the value of mass?
mass = density x volume
how did the temperature affect the respiration in yeast?
the higher the temperature the more it increased the rate of respiration
respiration chemical equation
c6h12o6 + 6o2 = energy + 6co2 + 6h2o
Word equation for photosynthesis
carbon dioxide + water + light + chlorophyll = glucose + oxygen
how would you calculate volume?
volume= mass / density
Explain how the balloon is used in the experiment to show gas production by yeast.
The balloon is placed over the mouth of a container where yeast is fermenting. As the yeast produces carbon dioxide gas, the gas inflates the balloon, showing evidence of gas production.
define fermentation
anaerobic respiration of glucose by yeast is how alcohol is produced in a process called fermentation
Chemical equation for photosynthesis
6co2 + 6h2o + light + chlorophyll = c6h12o6 + 6o2
how do you determine if something will float on water or not?
how did you investigate the density of an object?
weigh it before, put it in water, measure the volume of water that it went up and then get the difference, desnity = mass/volume