Midterm

A  True

B  False

A  TRUE

B  False

A  False

B  TRUE

A  rough ER

B  smooth ER

C  nuclei

D  lysosomes

A  vacuole

B  Golgi apparatus

C  nuclear envelope

D  plasma membrane

A  a nuclear envelope

B  a plasma membrane

C  cell walls

D  organelles

A  transmembrane proteins

B  membrane

C  concentration gradient

D  energy input

A  active transport

B  simple diffusion

C  osmosis

D  facilitated diffusion

A  diffusion of a solute through water

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

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

D  the movement of a substance against the concentration gradient

E  the active transport of water

A  hypertonic

B  hypotonic

C  isotonic

A  Ionic bonds

B  Covalent bonds

C  Hydrogen bonds

D  Hydrophobic interactions

A  transmembrane

B  integral

C  peripheral

A  More carbon-carbon double bonds

B  A different base

C  Three phosphate groups

D  No phosphate groups

A  Sugars

B  Backbone bonds

C  Nitrogenous bases

D  Phosphate groups

A  GCGAATGA

B  GCUAAUCA

C  GCTAATCA

D  CGATTAGT

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  quaternary structure

B  tertiary structure

C  all of these

D  secondary structure

A  primary

B  tertiary

C  secondary

D  quaternary

A  glucose

B  lactose

C  starch

D  glycogen

E  cellulose

A  chitin

B  glycogen

C  keratin

D  starch

A  steroids

B  polysaccharides

C  phospholipids

D  polypeptides

A  are liquid at room temperature

B  are sharply bent

C  have a low melting point

D  are densely packed

A  8

B  6

C  5

D  4

A  DNA

B  RNA

C  lipid

D  protein

A  is less toxic.

B  has a lower concentration of hydrogen ions.

C  is more acidic.

D  has a higher concentration of oxygen atoms.

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

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

A  sugar from an orange

B  DNA from an onion

C  melted butter

D  protein from a steak

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  oxygen

B  nitrogen

C  sulfur

D  hydrogen

E  carbon

A  their sharing a pair of valence electrons.

B  neutron interactions.

C  their opposite charges.

D  hydrophobic interactions.

A  Carbonyl

B  Phosphate

C  Methyl

D  Hydroxyl

A  covalent bond

B  hydrogen bond

C  double bond

D  ionic bond

A  natural history.

B  preservation.

C  evolution

D  preconception

A  3 toed sloths

B  Jaguars, giant anteaters, macaw parrots, capybara rodents

C  Endocrine system

D  School of piranhas

E  Amazon River Basin

A  Sensitivity

B  Metabolism

C  Organization

D  Homeostasis

A  to be organized

B  to metabolize

C  to grow

D  to respond

E  All of the choices are characteristics of living organisms.

A  They have a cell wall as an outer boundary.

B  They are made of cells or cell products.

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

D  They are the products of evolution.

A  It is not testable.

B  There are many other potential hypotheses.

C  The results are not repeatable.

D  There is no way to invalidate it.

A  Direct sunlight

B  Moisture

C  Artificial light

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  Yes, because there is one variable and a control

D  No because there is only 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  stable variable

B  altered variable

C  control

D  experimental variable