Midterm

A  False

B  True

A  TRUE

B  False

A  TRUE

B  False

A  smooth ER

B  nuclei

C  rough ER

D  lysosomes

A  vacuole

B  nuclear envelope

C  Golgi apparatus

D  plasma membrane

A  organelles

B  a plasma membrane

C  cell walls

D  a nuclear envelope

A  energy input

B  concentration gradient

C  membrane

D  transmembrane proteins

A  simple diffusion

B  osmosis

C  active transport

D  facilitated diffusion

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

B  the active transport of water

C  the movement of a substance against the concentration gradient

D  diffusion of a solute through water

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

A  hypotonic

B  isotonic

C  hypertonic

A  Covalent bonds

B  Hydrogen bonds

C  Ionic bonds

D  Hydrophobic interactions

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  Sugars

B  Phosphate groups

C  Nitrogenous bases

D  Backbone bonds

A  CGATTAGT

B  GCGAATGA

C  GCTAATCA

D  GCUAAUCA

A  carry genetic information

B  be its own template for replication

C  catalyze reactions

D  form a double helix

A  formed primary structure

B  been denatured

C  formed secondary structure

D  been folded into proper functional shape

A  tertiary structure

B  quaternary structure

C  all of these

D  secondary structure

A  tertiary

B  secondary

C  quaternary

D  primary

A  starch

B  glucose

C  glycogen

D  lactose

E  cellulose

A  chitin

B  keratin

C  glycogen

D  starch

A  polypeptides

B  phospholipids

C  polysaccharides

D  steroids

A  are liquid at room temperature

B  are sharply bent

C  are densely packed

D  have a low melting point

A  6

B  5

C  8

D  4

A  protein

B  DNA

C  RNA

D  lipid

A  has a lower concentration of hydrogen ions.

B  has a higher concentration of oxygen atoms.

C  is less toxic.

D  is more acidic.

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

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

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  DNA from an onion

C  melted butter

D  protein from a steak

A  Hydrophobic interactions

B  Water forms hydration shells

C  Sea water acts as a solvent

D  Surface tension

E  Water has a high heat of vaporization

A  carbon

B  sulfur

C  hydrogen

D  oxygen

E  nitrogen

A  neutron interactions.

B  their sharing a pair of valence electrons.

C  their opposite charges.

D  hydrophobic interactions.

A  Hydroxyl

B  Methyl

C  Phosphate

D  Carbonyl

A  hydrogen bond

B  ionic bond

C  covalent bond

D  double bond

A  evolution

B  preconception

C  natural history.

D  preservation.

A  School of piranhas

B  3 toed sloths

C  Jaguars, giant anteaters, macaw parrots, capybara rodents

D  Amazon River Basin

E  Endocrine system

A  Homeostasis

B  Organization

C  Sensitivity

D  Metabolism

A  to respond

B  to be organized

C  to grow

D  to metabolize

E  All of the choices are characteristics of living organisms.

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

B  They are the products of evolution.

C  They have a cell wall as an outer boundary.

D  They are made of cells or cell products.

A  There is no way to invalidate it.

B  There are many other potential hypotheses.

C  It is not testable.

D  The results are not repeatable.

A  Artificial light

B  Direct sunlight

C  Moisture

D  Seeds in the dark

E  Germination rate

A  No, because there is not more than one variable

B  Yes, because there is more than one variable.

C  No because there is only one variable and a control

D  Yes, because there is one variable and a control

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

B  Individuals with access to water with no fluoride added.

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

D  Individuals with access to fluoridated water.

A  altered variable

B  stable variable

C  control

D  experimental variable