Which of the following does not have an effect on enzyme activity? Temperature

Amount of oxygen

Number of substrates

Shape of active site

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.