Anatomy Questions

Which of the following statements about chemical bonds is true? A Covalent bonds are stronger than ionic bonds. B Hydrogen bonds occur between two atoms of hydrogen. C Bonding readily occurs between nonpolar and polar molecules. D A molecule of water is unlikely to bond with a

A Covalent bonds are stronger than ionic bonds

__________ reactions release energy.

Catabolic, exergonic, and decomposition

Which of the following is when there is a separation of some type of substance across some type of barrier?

Gradient

Which of the following concepts state that an entire organism can be understood by breaking it down into smaller parts.

Reductionism

What structure of protein is the first functional structure?

Tertiary- Globular

Which of the following will not speed up the rate of a chemical reaction?

The absence of an enzyme

Which of the following is a feature common to all three components of the cytoskeleton?

They are all polymers of protein subunits.

The nucleus and mitochondria share which of the following features?

a double cell membrane

Which of the following is a functional group that is part of a building block of proteins?

amino

What speeds up the rate of a chemical reaction

an enzyme Introduction of heat Decreasing the size of the molecules Increasing the steepness of the concentration gradient

The smallest unit of an element that still retains the distinctive behavior of that element is an __________

atom

AB → A + B is a general notation for a(n) __________ reaction

decomposition reaction

The diffusion of substances within a solution tends to move those substances ______their ____ gradient

down; concentration

What organic compound do brain cells primarily rely on for fuel?

glucose

A phospholipid _________

has both polar and nonpolar regions

Because they are embedded within the membrane, ion channels are examples of ____

integral proteins

Which of the following organelles produces large quantities of ATP when both glucose and oxygen are available to the cell?

mitochondria

Together, just four elements make up more than 95 percent of the body's mass. These include __________

oxygen, carbon, hydrogen, and nitrogen

The energy stored in a foot of snow on a steep roof is __________

potential energy

Which of the following is a function of the rough ER?

production of proteins

The characteristic that gives an element its distinctive properties is its number of __________

protons

The rough ER has its name due to what associated structures?

ribosomes

The ability of an enzyme's active sites to bind only substrates of compatible shape and charge is known as __________

specificity

Choose the term that best completes the following analogy: Cytoplasm is to cytosol as a swimming pool containing chlorine and flotation toys is to

water