Midterm

A  False

B  True

A  False

B  TRUE

A  False

B  TRUE

A  lysosomes

B  rough ER

C  nuclei

D  smooth ER

A  nuclear envelope

B  Golgi apparatus

C  vacuole

D  plasma membrane

A  a nuclear envelope

B  organelles

C  a plasma membrane

D  cell walls

A  transmembrane proteins

B  membrane

C  energy input

D  concentration gradient

A  simple diffusion

B  osmosis

C  facilitated diffusion

D  active transport

A  the movement of a substance against the concentration gradient

B  diffusion of a solute through water

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

D  the active transport of water

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

A  hypertonic

B  hypotonic

C  isotonic

A  Ionic bonds

B  Hydrophobic interactions

C  Covalent bonds

D  Hydrogen bonds

A  integral

B  peripheral

C  transmembrane

A  Three phosphate groups

B  More carbon-carbon double bonds

C  A different base

D  No phosphate groups

A  Nitrogenous bases

B  Backbone bonds

C  Sugars

D  Phosphate groups

A  GCGAATGA

B  CGATTAGT

C  GCUAAUCA

D  GCTAATCA

A  catalyze reactions

B  form a double helix

C  be its own template for replication

D  carry genetic information

A  formed secondary structure

B  been folded into proper functional shape

C  been denatured

D  formed primary structure

A  quaternary structure

B  all of these

C  secondary structure

D  tertiary structure

A  quaternary

B  secondary

C  primary

D  tertiary

A  glycogen

B  lactose

C  cellulose

D  starch

E  glucose

A  glycogen

B  chitin

C  starch

D  keratin

A  phospholipids

B  polysaccharides

C  polypeptides

D  steroids

A  are densely packed

B  have a low melting point

C  are sharply bent

D  are liquid at room temperature

A  6

B  8

C  5

D  4

A  RNA

B  lipid

C  DNA

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  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  melted butter

B  protein from a steak

C  DNA from an onion

D  sugar from an orange

A  Hydrophobic interactions

B  Surface tension

C  Water forms hydration shells

D  Water has a high heat of vaporization

E  Sea water acts as a solvent

A  nitrogen

B  oxygen

C  hydrogen

D  carbon

E  sulfur

A  their opposite charges.

B  hydrophobic interactions.

C  their sharing a pair of valence electrons.

D  neutron interactions.

A  Phosphate

B  Hydroxyl

C  Methyl

D  Carbonyl

A  hydrogen bond

B  double bond

C  covalent bond

D  ionic bond

A  preconception

B  natural history.

C  evolution

D  preservation.

A  Jaguars, giant anteaters, macaw parrots, capybara rodents

B  3 toed sloths

C  Endocrine system

D  Amazon River Basin

E  School of piranhas

A  Sensitivity

B  Organization

C  Homeostasis

D  Metabolism

A  to grow

B  to respond

C  to be organized

D  All of the choices are characteristics of living organisms.

E  to metabolize

A  They are made of cells or cell products.

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

C  They have a cell wall as an outer boundary.

D  They are the products of evolution.

A  There are many other potential hypotheses.

B  It is not testable.

C  The results are not repeatable.

D  There is no way to invalidate it.

A  Direct sunlight

B  Germination rate

C  Moisture

D  Artificial light

E  Seeds in the dark

A  No because there is only one variable and a control

B  Yes, because there is one variable and a control

C  No, because there is not more than one variable

D  Yes, because there is more than one variable.

A  Individuals with access to water with no fluoride added.

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

C  Individuals with access to fluoridated water.

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

A  altered variable

B  stable variable

C  control

D  experimental variable