Midterm

A  False

B  True

A  False

B  TRUE

A  TRUE

B  False

A  lysosomes

B  smooth ER

C  rough ER

D  nuclei

A  nuclear envelope

B  plasma membrane

C  vacuole

D  Golgi apparatus

A  cell walls

B  organelles

C  a nuclear envelope

D  a plasma membrane

A  membrane

B  energy input

C  concentration gradient

D  transmembrane proteins

A  osmosis

B  facilitated diffusion

C  simple diffusion

D  active transport

A  diffusion of a solute through water

B  the active transport of water

C  the movement of a substance against the concentration gradient

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

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

A  hypotonic

B  isotonic

C  hypertonic

A  Covalent bonds

B  Ionic bonds

C  Hydrophobic interactions

D  Hydrogen bonds

A  integral

B  transmembrane

C  peripheral

A  No phosphate groups

B  A different base

C  More carbon-carbon double bonds

D  Three phosphate groups

A  Nitrogenous bases

B  Sugars

C  Backbone bonds

D  Phosphate groups

A  GCUAAUCA

B  CGATTAGT

C  GCTAATCA

D  GCGAATGA

A  be its own template for replication

B  carry genetic information

C  catalyze reactions

D  form a double helix

A  been folded into proper functional shape

B  formed secondary structure

C  formed primary structure

D  been denatured

A  tertiary structure

B  secondary structure

C  quaternary structure

D  all of these

A  secondary

B  primary

C  tertiary

D  quaternary

A  starch

B  glucose

C  lactose

D  glycogen

E  cellulose

A  glycogen

B  keratin

C  chitin

D  starch

A  phospholipids

B  polysaccharides

C  polypeptides

D  steroids

A  are sharply bent

B  are densely packed

C  are liquid at room temperature

D  have a low melting point

A  6

B  4

C  5

D  8

A  lipid

B  protein

C  DNA

D  RNA

A  has a higher concentration of oxygen atoms.

B  is more acidic.

C  is less toxic.

D  has a lower concentration of hydrogen ions.

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

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

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

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

A  sugar from an orange

B  protein from a steak

C  melted butter

D  DNA from an onion

A  Surface tension

B  Water forms hydration shells

C  Water has a high heat of vaporization

D  Hydrophobic interactions

E  Sea water acts as a solvent

A  oxygen

B  nitrogen

C  hydrogen

D  carbon

E  sulfur

A  their sharing a pair of valence electrons.

B  hydrophobic interactions.

C  neutron interactions.

D  their opposite charges.

A  Carbonyl

B  Methyl

C  Phosphate

D  Hydroxyl

A  covalent bond

B  hydrogen bond

C  ionic bond

D  double bond

A  preconception

B  preservation.

C  evolution

D  natural history.

A  Amazon River Basin

B  Endocrine system

C  School of piranhas

D  3 toed sloths

E  Jaguars, giant anteaters, macaw parrots, capybara rodents

A  Organization

B  Sensitivity

C  Metabolism

D  Homeostasis

A  to respond

B  All of the choices are characteristics of living organisms.

C  to be organized

D  to metabolize

E  to grow

A  They are the products of evolution.

B  They have a cell wall as an outer boundary.

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

D  They are made of cells or cell products.

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  Moisture

B  Germination rate

C  Direct sunlight

D  Artificial light

E  Seeds in the dark

A  No because there is only one variable and a control

B  Yes, because there is more than one variable.

C  Yes, because there is one variable and a control

D  No, because there is not more than one variable

A  Individuals with access to water with no fluoride added.

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 fluoridated water.

A  stable variable

B  altered variable

C  experimental variable

D  control