BIOSPLENDID 1.3

Select the levels of protein which exhibit hydrophobic interactions.

• Primary and secondary

• Secondary and tertiary

• Tertiary and quaternary

• Secondary and quaternary

Guanine and cytosine are the organic bases that can be found in DNA molecules. Name the bond that binds these two bases together.

• Hydrogen bond

• Phosphodiester bond

• Ester bond

• Glycosidic bond

Certain insects can stand and walk on the surface of water. Which property of water allows them to do this?

• Maximum density at 4 degrees Celsius

• Low viscosity

• High surface tension

• High latent heat of vaporization

Which of the following tissues does not belong to an animal?

• 
• 
• 
• 

Which of the following types of movement is NOT a passive transport?

• Endocytosis

• Diffusion

• Facilitated diffusion

• Osmosis

Semi-autonomous organelles are organelles that possess their own nucleic acids. Which of the following organelles is semiautonomous?

• Golgi apparatus

• Centriole

• Mitochondrion

• Nucleus

Which process allows the movement of molecules that are too large to pass in through a cell surface membrane?

• Plasmolysis

• Endocytosis

• Exocytosis

• Facilitated diffusion

What is a function of the cholesterol in a plasma membrane?

• Controlling active transport

• Helping cells joining

• Acts as a receptor

• Regulating the membrane's fluidity

Which molecules are found at the surface of a plasma membrane?

• Cholesterol and glycolipid

• Cholesterol and phospholipid

• Cholesterol only

• Glycolipid and glycoprotein

Three adjacent plant cells with different water potential are shown. In which direction will water move?

• From cell Y to cell X and then cell Z only

• From cell X to both cell Y and Z

• From cell Z to cell Y and then cell X only

• From cell Z to both cell Y and X