Midterm

A  True

B  False

A  TRUE

B  False

A  False

B  TRUE

A  lysosomes

B  rough ER

C  nuclei

D  smooth ER

A  Golgi apparatus

B  vacuole

C  plasma membrane

D  nuclear envelope

A  cell walls

B  organelles

C  a nuclear envelope

D  a plasma membrane

A  energy input

B  concentration gradient

C  membrane

D  transmembrane proteins

A  osmosis

B  simple diffusion

C  facilitated diffusion

D  active transport

A  the active transport of water

B  diffusion of a solvent across a semipermeable membrane down a concentration gradient

C  diffusion of a solute through water

D  the movement of a substance against the concentration gradient

E  the net movement of a substance from higher to lower concentration

A  hypotonic

B  isotonic

C  hypertonic

A  Hydrophobic interactions

B  Hydrogen bonds

C  Ionic bonds

D  Covalent bonds

A  peripheral

B  transmembrane

C  integral

A  More carbon-carbon double bonds

B  A different base

C  No phosphate groups

D  Three phosphate groups

A  Backbone bonds

B  Sugars

C  Nitrogenous bases

D  Phosphate groups

A  CGATTAGT

B  GCUAAUCA

C  GCTAATCA

D  GCGAATGA

A  carry genetic information

B  be its own template for replication

C  catalyze reactions

D  form a double helix

A  been folded into proper functional shape

B  formed primary structure

C  been denatured

D  formed secondary structure

A  secondary structure

B  quaternary structure

C  tertiary structure

D  all of these

A  secondary

B  quaternary

C  tertiary

D  primary

A  glycogen

B  glucose

C  lactose

D  starch

E  cellulose

A  keratin

B  chitin

C  glycogen

D  starch

A  polypeptides

B  polysaccharides

C  phospholipids

D  steroids

A  are sharply bent

B  have a low melting point

C  are liquid at room temperature

D  are densely packed

A  5

B  6

C  4

D  8

A  protein

B  lipid

C  DNA

D  RNA

A  has a lower concentration of hydrogen ions.

B  has a higher concentration of oxygen atoms.

C  is more acidic.

D  is less toxic.

A  Hydrogen bonds absorb heat when they break and release heat when they form. This helps to minimize temperature changes.

B  Hydrogen bonds hold water molecules together; many hydrogen bonds must be broken for water to evaporate.

C  The surface tension created by hydrogen bonds is greater than the weight of the lizard initially.

D  Polar molecules are attracted to ions and polar compounds, making these compounds soluble.

A  protein from a steak

B  melted butter

C  DNA from an onion

D  sugar from an orange

A  Water has a high heat of vaporization

B  Surface tension

C  Sea water acts as a solvent

D  Hydrophobic interactions

E  Water forms hydration shells

A  carbon

B  sulfur

C  oxygen

D  hydrogen

E  nitrogen

A  their opposite charges.

B  neutron interactions.

C  their sharing a pair of valence electrons.

D  hydrophobic interactions.

A  Hydroxyl

B  Phosphate

C  Methyl

D  Carbonyl

A  ionic bond

B  double bond

C  covalent bond

D  hydrogen bond

A  preservation.

B  evolution

C  natural history.

D  preconception

A  Amazon River Basin

B  3 toed sloths

C  Endocrine system

D  School of piranhas

E  Jaguars, giant anteaters, macaw parrots, capybara rodents

A  Organization

B  Metabolism

C  Homeostasis

D  Sensitivity

A  All of the choices are characteristics of living organisms.

B  to be organized

C  to respond

D  to grow

E  to metabolize

A  They are the products of evolution.

B  They are made of cells or cell products.

C  They are composed of carbon, hydrogen, oxygen, and nitrogen.

D  They have a cell wall as an outer boundary.

A  There is no way to invalidate it.

B  It is not testable.

C  The results are not repeatable.

D  There are many other potential hypotheses.

A  Direct sunlight

B  Seeds in the dark

C  Artificial light

D  Germination rate

E  Moisture

A  No because there is only one variable and a control

B  No, because there is not more than one variable

C  Yes, because there is more than one variable.

D  Yes, because there is one variable and a control

A  Individuals with access to fluoridated water.

B  Individuals who have fluoride added to their toothpaste but not their water.

C  Individuals with access to differing amounts of fluoride in the water.

D  Individuals with access to water with no fluoride added.

A  control

B  stable variable

C  experimental variable

D  altered variable