Might need paper 1 Might come up Flashcards
5 uses of glucose from photosynthesis
For respiration Making cellulose Making amino acids Stored as oils or fats Stored as starch
Word equation for photosynthesis
light
Carbon dioxide + water ——-> glucose + oxygen
What do chromosomes contain
A large number of genes and short sections of DNA
How many chromosomes do we have
23 pairs
What happens if plants have a nitrate deficiency
Stunted growth as nitrates are needed to make proteins which are needed for growth
What happens if plants have a magnesium deficiency
Chlorosis and yellow leaves as magnesium ions are needed for chlorophyll which is needed for photosynthesis
Anaerobic respiration word equation
glucose —> lactic acid
Anaerobic respiration word equation in plants and yeast
glucose —> ethanol + carbon dioxide
What is respiration
The process of transferring energy from the breakdown of glucose which goes on in every cell
Aerobic respiration word equation
glucose + oxygen –> carbon dioxide + water
What is metabolism
The sum of all chemical reactions in the body
What does metabolism include
Respiration
Converting glucose to starch
Breakdown of excess proteins to form urea for excretion
Lipid molecules forming from on molecule of glycerol and 3 fatty acids
Where are chromosomes contained
Nucleus
What are chromosomes made of
thin strands of DNA
What is a stem cell
They are undifferentiated cells and are capable of developing into different types of cell
They can also divide to provide more undifferentiated cells
