Plants and animal cells Flashcards
Define exergonic
Energy releasing
Define catabolic
Something is broken down during a reaction
Define endergonic
Energy requiring / absorbed
Define anabolic
Something is built up during a reaction
State the five types of monosaccharide
Glucose
Galactose
Fructose
Deoxyribose
Ribose
State the three types of disaccharides and the monomers they are made from
Lactose - Glucose + Galactose
Maltose - Glucose + Glucose
Sucrose - Glucose + Fructose
State the three types of polysaccharides and their functions
Glycogen - Energy storage in animals
Cellulose - Cell wall in plants (strength and support)
Starch - Energy storage in plants
Give an example of an exergonic catabolic reaction
Aerobic cellular respiration, hydrolysis, decomposition
Hydrolysis
Give an example of an endergonic anabolic reaction
Photosynthesis
Protein synthesis
Condensation polymerisation
State the word equation for aerobic cellular respiration
Glucose + oxygen —> carbon dioxide + water
State the word equation for anaerobic cellular respiration in humans
Glucose —> lactic acid
Name the three parts of aerobic cellular respiration and where they occur in a cell
Glycolysis occurs in the cytosol
Kerbs cycle occurs in the mitochondrial matrix
Electron transport chain occurs in the mitochondrial cristae
State the word equation for anaerobic cellular respiration in yeast
Glucose –> ethanol + carbon dioxide
Write the three things that appear above/below the arrow for the photosynthesis equation
light, excess water, chlorophyll
Would a catabolic reaction be associated with an endergonic or an exergonic energy change?
Exergonic
Where does the light dependent reactions occur in photosynthesis?
thylakoid membrane of the grana in a chloroplast
What is a limiting factor?
A limiting factor is one which prevents a reaction from proceeding at a greater rate
Name four examples of processes that use ATP in the human body
Controlling body temperature; Active Transport; Muscle contraction; Protein synthesis
What elements are found in a carbohydrate?
CHO
What is the main purpose of carbohydrates in the body?
Source of energy
Draw and label a glucose molecule
Draw and label two monosaccharides getting joined together
What is cellular respiration?
Cellular respiration is the release of energy from glucose in cells.