exam 1

Sodium-potassium (Na+/K+) ATPase pump transports both sodium and potassium_________ their concentration gradients in a process called_________.

• up; active transport

• up; facilitated transport

• up; cotransport

• down; active transport

• down; countertransport

the study of how the body functions is called _______

• neuroanatomy

• anatomy

• chemistry

• histology

• physiology

Which of the following organelles sorts, cuts, splices, and packages newly formed proteins into membrane-bound vesicles?

• Smooth ER

• Rough ER

• Golgi complex

• Mitochondrion

• Nucleolus

The plasma membrane is mostly made of molecules that have hydrophilic heads and hydrophobic tails. These molecules are called_________.

• proteoglycans

• glycolipids

• glycoproteins

• phospholipids

• lipoproteins

The fact that most of us have 24 ribs, but some people have 23, 26, or more, is an example of what type of variation among organisms?

• Cellular

• Holistic

• Physiological

• Anatomical

• Reductionist

The greater the concentration gradient, the faster the diffusion rate.

• True

• False

What type of bond is labeled 1?

• Covalent

• Hydrogen

• Ionic

• disulfide

• van der waals

Nucleic acids are_________ of_________.

• monomers; monosaccharides

• monomers; ATP

• polymers; nucleotides

• polymers; cAMP

• polymers; DNA

The sodium-glucose transport protein (SGLT) is one example of an active transport process involving a uniport carrier.

• True

• False

The folding and coiling of a protein into a globular shape, by interactions among R groups, is the_________ structure of the protein.

• primary

• secondary

• tertiary

• quaternary

• denatured