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