Midterm

A  True

B  False

A  False

B  TRUE

A  TRUE

B  False

A  nuclei

B  smooth ER

C  lysosomes

D  rough ER

A  plasma membrane

B  Golgi apparatus

C  nuclear envelope

D  vacuole

A  organelles

B  a nuclear envelope

C  a plasma membrane

D  cell walls

A  membrane

B  energy input

C  transmembrane proteins

D  concentration gradient

A  osmosis

B  active transport

C  facilitated diffusion

D  simple diffusion

A  the active transport of water

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

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

D  diffusion of a solute through water

E  the movement of a substance against the concentration gradient

A  hypotonic

B  hypertonic

C  isotonic

A  Hydrogen bonds

B  Ionic bonds

C  Covalent bonds

D  Hydrophobic interactions

A  integral

B  transmembrane

C  peripheral

A  More carbon-carbon double bonds

B  No phosphate groups

C  A different base

D  Three phosphate groups

A  Sugars

B  Phosphate groups

C  Backbone bonds

D  Nitrogenous bases

A  GCUAAUCA

B  CGATTAGT

C  GCGAATGA

D  GCTAATCA

A  be its own template for replication

B  catalyze reactions

C  carry genetic information

D  form a double helix

A  formed primary structure

B  been denatured

C  been folded into proper functional shape

D  formed secondary structure

A  secondary structure

B  all of these

C  tertiary structure

D  quaternary structure

A  tertiary

B  secondary

C  quaternary

D  primary

A  lactose

B  glucose

C  glycogen

D  cellulose

E  starch

A  chitin

B  keratin

C  starch

D  glycogen

A  polypeptides

B  steroids

C  phospholipids

D  polysaccharides

A  are liquid at room temperature

B  are densely packed

C  are sharply bent

D  have a low melting point

A  5

B  8

C  6

D  4

A  RNA

B  lipid

C  DNA

D  protein

A  is more acidic.

B  has a lower concentration of hydrogen ions.

C  is less toxic.

D  has a higher concentration of oxygen atoms.

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

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

A  sugar from an orange

B  protein from a steak

C  melted butter

D  DNA from an onion

A  Water has a high heat of vaporization

B  Sea water acts as a solvent

C  Hydrophobic interactions

D  Surface tension

E  Water forms hydration shells

A  hydrogen

B  nitrogen

C  oxygen

D  carbon

E  sulfur

A  their opposite charges.

B  neutron interactions.

C  their sharing a pair of valence electrons.

D  hydrophobic interactions.

A  Methyl

B  Carbonyl

C  Hydroxyl

D  Phosphate

A  double bond

B  covalent bond

C  ionic bond

D  hydrogen bond

A  evolution

B  natural history.

C  preservation.

D  preconception

A  Amazon River Basin

B  Jaguars, giant anteaters, macaw parrots, capybara rodents

C  Endocrine system

D  3 toed sloths

E  School of piranhas

A  Metabolism

B  Sensitivity

C  Homeostasis

D  Organization

A  to be organized

B  to metabolize

C  to respond

D  to grow

E  All of the choices are characteristics of living organisms.

A  They are made of cells or cell products.

B  They have a cell wall as an outer boundary.

C  They are the products of evolution.

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

A  The results are not repeatable.

B  There are many other potential hypotheses.

C  There is no way to invalidate it.

D  It is not testable.

A  Moisture

B  Direct sunlight

C  Seeds in the dark

D  Artificial light

E  Germination rate

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 differing amounts of fluoride in the water.

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

C  Individuals with access to water with no fluoride added.

D  Individuals with access to fluoridated water.

A  altered variable

B  stable variable

C  experimental variable

D  control