Midterm

A  True

B  False

A  False

B  TRUE

A  TRUE

B  False

A  nuclei

B  rough ER

C  smooth ER

D  lysosomes

A  nuclear envelope

B  plasma membrane

C  vacuole

D  Golgi apparatus

A  a nuclear envelope

B  organelles

C  a plasma membrane

D  cell walls

A  concentration gradient

B  transmembrane proteins

C  energy input

D  membrane

A  osmosis

B  facilitated diffusion

C  active transport

D  simple diffusion

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

B  the active transport of water

C  diffusion of a solute through water

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

E  the movement of a substance against the concentration gradient

A  hypotonic

B  isotonic

C  hypertonic

A  Hydrogen bonds

B  Covalent bonds

C  Hydrophobic interactions

D  Ionic bonds

A  peripheral

B  integral

C  transmembrane

A  More carbon-carbon double bonds

B  A different base

C  Three phosphate groups

D  No phosphate groups

A  Sugars

B  Phosphate groups

C  Nitrogenous bases

D  Backbone bonds

A  CGATTAGT

B  GCUAAUCA

C  GCGAATGA

D  GCTAATCA

A  catalyze reactions

B  form a double helix

C  be its own template for replication

D  carry genetic information

A  been folded into proper functional shape

B  been denatured

C  formed secondary structure

D  formed primary structure

A  tertiary structure

B  quaternary structure

C  all of these

D  secondary structure

A  tertiary

B  secondary

C  primary

D  quaternary

A  glycogen

B  lactose

C  cellulose

D  starch

E  glucose

A  starch

B  chitin

C  glycogen

D  keratin

A  phospholipids

B  polypeptides

C  steroids

D  polysaccharides

A  have a low melting point

B  are densely packed

C  are liquid at room temperature

D  are sharply bent

A  6

B  4

C  8

D  5

A  lipid

B  protein

C  RNA

D  DNA

A  has a higher concentration of oxygen atoms.

B  is more acidic.

C  has a lower concentration of hydrogen ions.

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

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

A  protein from a steak

B  melted butter

C  DNA from an onion

D  sugar from an orange

A  Hydrophobic interactions

B  Surface tension

C  Sea water acts as a solvent

D  Water has a high heat of vaporization

E  Water forms hydration shells

A  nitrogen

B  hydrogen

C  sulfur

D  oxygen

E  carbon

A  hydrophobic interactions.

B  their opposite charges.

C  their sharing a pair of valence electrons.

D  neutron interactions.

A  Hydroxyl

B  Phosphate

C  Carbonyl

D  Methyl

A  ionic bond

B  covalent bond

C  hydrogen bond

D  double bond

A  evolution

B  preservation.

C  natural history.

D  preconception

A  3 toed sloths

B  Jaguars, giant anteaters, macaw parrots, capybara rodents

C  Endocrine system

D  Amazon River Basin

E  School of piranhas

A  Sensitivity

B  Homeostasis

C  Metabolism

D  Organization

A  to grow

B  All of the choices are characteristics of living organisms.

C  to be organized

D  to metabolize

E  to respond

A  They are made of cells or cell products.

B  They are the products of evolution.

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

D  They have a cell wall as an outer boundary.

A  There are many other potential hypotheses.

B  The results are not repeatable.

C  There is no way to invalidate it.

D  It is not testable.

A  Artificial light

B  Moisture

C  Germination rate

D  Direct sunlight

E  Seeds in the dark

A  Yes, because there is more than one variable.

B  No because there is only one variable and a control

C  Yes, because there is one variable and a control

D  No, because there is not more than one variable

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

B  Individuals with access to water with no fluoride added.

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

D  Individuals with access to fluoridated water.

A  experimental variable

B  altered variable

C  control

D  stable variable