- Which of the following subatomic particles would be found in a chlorine nucleus?a. Protonsb. Neutronsc. Electronsd. Protons and Neutronse. Electrons and Protons
- __ is the molecule that cells use to store and pass on genetic information, the instructions for building the cell and other products.DNACholesterolProteinPhospholipidNucleosome
- Which of the following molecules can freely flow across the plasma membrane?a) Glucoseb) Na+c) Large Proteinsd) Cl-e) H2O
- Which of the following is not a function of a protein?a) Support the cell shapeb) Signal nearby cellsc) Cellular movementd) Storage of genetic informatione) Speed the rate of chemical reactions
- In water molecules the oxygen becomes slightly negative and the hydrogens slightly positive, this makes water molecules __.a. polarb. ionicc. nonpolard. catabolice. organic
- Two glucose molecules are bound together by a(n) __ reaction to produce maltose.a) exchangeb) ionicc) dehydrationd) hydrolysise) anabolic
- A solution with a pH of __ would be considered neutral.7101050
- Carbon is atomic number 6, therefore atoms of carbon always have __.6 electrons6 protons3 protons and 3 neutrons6 quarks6 neutrons
- Which of the following is not a carbohydrate?StarchCelluloseSucroseGlucoseAmylase
- The majority of __ are hydrophobic.a) amino acidsb) proteinsc) lipidsd) sugarse) carbohydrates
- Water molecules are attracted to each other by hydrogen bonding. This causes water ___, which gives water a high surface tension.a. hydrophobicityb. ionizationc. acidityd. adhesione. cohesion
- In sodium chloride (NaCl) sodium donates an electron to chlorine. Sodium become + charged, while chlorine becomes - charged. This is an example of ____ bonding.a. nuclearb. hydrogenc. ionicd. covalente. exchange
- Animals store glucose by producing glycogen, a(n) __ consisting of many glucose molecules bonded together.a) hydrocarbonb) polymerc) organelled) double helixe) hydrophobic chain
- 1) Carbon is atomic number 6, if a carbon atom is electrically neutral how many electrons would it have?a. 2b. 3c. 6d. 12e. 18
- An atom of oxygen typically contains 8 electrons, how many bonds does it tend to form?a. 1b. 2c. 3d. 4e. None
- Lipids tend not to mix well with water due to their nonpolar nature. Thus we classify them as __.hydroliticpolymerichydrophobicenzymatichygroscopic
- Carbon is atomic number 6, therefore it has 4 valence electrons and tends to form __ bonds.12480
- Many macromolecules in the cell are formed by binding together many small building blocks to form the final large molecules. Molecules built in this way are referred to as __.polymershydrophobicligandsorganicsalts
- For a molecule to be organic, it must __.be aliveform ionic bondscontain carbonbe hydrophilicbe a polymer
- Electrons are subatomic particles which __.weigh 1 atomic mass unit (AMU)have a negative chargeare found in the nucleushave a positive chargeconduct electricity