SESSION 10

SESSION 10

Chemical l Constituents of Cells

CHEMICALS

• ORGANIC/ HAVE CARBON AND HYDROGEN

• INORGANIC/ ALL OTHERS

• Inorganic substances dissolve in water and release ions

Multiple Choice

REMEMBER session 9???? What is an acid?

• electrolyte that release ions that bond with hydrogen ions

• electrolytes that release hydrogen ions

• electrolytes that resist chemical change

• substance that speeds up a chemical reaction

Multiple Choice

What is a base?

• electrolytes that release hydrogen ions

• electrolytes that release ions that bond with hydrogen ions

• measure of hydrogen ion concentration

INORGANIC SUBSTANCES in cells

• does not have carbon and hydrogen (both)

• WATER/OXYGEN/ CARBON DIOXIDE, SALTS

WATER

• The most abundant compound in living material , about 2/3 of your total body weight

• Major component of blood

• Moves chemical through the body

• Carry and absorb heat

• cite of most metabolic reactions

• the universal solvent (substance that dissolves another substance)

• BTW solute (substance being dissolved)

Multiple Select

Which of the following is a function of water?

• regulates body temperature

• transport chemicals

• major component of body fluid

• used to release energy from glucose

OXYGEN

• ENTERS the body via the respiratory system

• TRANSPORTED through the body via the cardiovascular sytem

CARBON DIOXIDE

• Waste product of metabolic processes

• releases energy

• exhaled through the lungs

SALTS

• Composed of oppositely charged ions

• abundant in tissue and body fluid

• important in metabolic processes

Multiple Choice

Which of the following is composed of oppositely charged ions?

• oxygen

• water

• salts

• carbon dioxide

ORGANIC SUBSTANCES in cells

• carbohydrates/lipids/proteins/ nucleic acids

CARBOHYDRATE

• CONTAINS ---CARBON/ HYDROGEN AND OXYGEN (C-H-O)

• FUNCTION--- Energy / cell structure

• EXAMPLE----- Glucose

LIPIDS

• CONTAINS---Carbon/Hydrogen/Oxygen/(often P) C-H-O-P

• FUNCTION---Provide energy/ cell structure

• EXAMPLE--- Fats/ Cholesterol

PROTEINS

• CONTAINS Carbon/hydrogen/oxygen/nitrogen (often S) C-H-O-N-S

• FUNCTION --Provide energy/ cell structure/ enzymes

• EXAMPLES--- Albumins/ Hemoglobin

NUCLEIC ACIDS

• CONTAINS carbon, hydrogen, oxygen, nitrogen, phosphorus

• Stores information for protein synthesis/controls cell activity

• EXAMPLE--- DNA/RNA

Multiple Choice

Which organic compound does not provide energy to the cell?

• protein

• lipid

• carbohydrate

• nucleic acid

Multiple Select

Which of the following provides energy to the cell

• lipids

• DNA/RNA

• hemoglobin

• carbohydrates

• albumins

BUILDING BLOCKS

• CARBOHYDRATES/ monosaccharides

• LIPIDS/ glycerol/ fatty acids

• PROTEINS/ amino acids

• NUCLEIC ACIDS/ nucleotides

Multiple Choice

Where is your genetic information found?

• in carbohydrates

• in lipids

• in protwins

• in nucleic acids