Midterm

A  True

B  False

A  False

B  TRUE

A  False

B  TRUE

A  smooth ER

B  lysosomes

C  nuclei

D  rough ER

A  plasma membrane

B  nuclear envelope

C  Golgi apparatus

D  vacuole

A  a plasma membrane

B  cell walls

C  a nuclear envelope

D  organelles

A  membrane

B  transmembrane proteins

C  concentration gradient

D  energy input

A  osmosis

B  facilitated diffusion

C  simple diffusion

D  active transport

A  diffusion of a solute through water

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

C  the movement of a substance against the concentration gradient

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

E  the active transport of water

A  hypertonic

B  hypotonic

C  isotonic

A  Ionic bonds

B  Hydrogen bonds

C  Covalent bonds

D  Hydrophobic interactions

A  peripheral

B  transmembrane

C  integral

A  Three phosphate groups

B  No phosphate groups

C  More carbon-carbon double bonds

D  A different base

A  Backbone bonds

B  Sugars

C  Nitrogenous bases

D  Phosphate groups

A  GCUAAUCA

B  GCTAATCA

C  GCGAATGA

D  CGATTAGT

A  form a double helix

B  carry genetic information

C  be its own template for replication

D  catalyze reactions

A  been folded into proper functional shape

B  formed secondary structure

C  formed primary structure

D  been denatured

A  tertiary structure

B  all of these

C  quaternary structure

D  secondary structure

A  tertiary

B  secondary

C  quaternary

D  primary

A  lactose

B  glycogen

C  cellulose

D  glucose

E  starch

A  glycogen

B  keratin

C  chitin

D  starch

A  phospholipids

B  polysaccharides

C  steroids

D  polypeptides

A  are sharply bent

B  are liquid at room temperature

C  are densely packed

D  have a low melting point

A  5

B  8

C  4

D  6

A  RNA

B  DNA

C  lipid

D  protein

A  has a lower concentration of hydrogen ions.

B  is more acidic.

C  has a higher concentration of oxygen atoms.

D  is less toxic.

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

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

A  DNA from an onion

B  protein from a steak

C  sugar from an orange

D  melted butter

A  Water forms hydration shells

B  Hydrophobic interactions

C  Water has a high heat of vaporization

D  Sea water acts as a solvent

E  Surface tension

A  nitrogen

B  carbon

C  sulfur

D  hydrogen

E  oxygen

A  their opposite charges.

B  their sharing a pair of valence electrons.

C  hydrophobic interactions.

D  neutron interactions.

A  Hydroxyl

B  Phosphate

C  Carbonyl

D  Methyl

A  covalent bond

B  double bond

C  hydrogen bond

D  ionic bond

A  preservation.

B  preconception

C  evolution

D  natural history.

A  3 toed sloths

B  Jaguars, giant anteaters, macaw parrots, capybara rodents

C  Amazon River Basin

D  Endocrine system

E  School of piranhas

A  Homeostasis

B  Organization

C  Sensitivity

D  Metabolism

A  All of the choices are characteristics of living organisms.

B  to metabolize

C  to be organized

D  to respond

E  to grow

A  They are the products of evolution.

B  They are made of cells or cell products.

C  They have a cell wall as an outer boundary.

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

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  Direct sunlight

B  Artificial light

C  Moisture

D  Germination rate

E  Seeds in the dark

A  Yes, because there is 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  No because there is only one variable and a control

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  control

B  altered variable

C  stable variable

D  experimental variable