Midterm

A  False

B  True

A  TRUE

B  False

A  False

B  TRUE

A  smooth ER

B  rough ER

C  lysosomes

D  nuclei

A  nuclear envelope

B  Golgi apparatus

C  plasma membrane

D  vacuole

A  organelles

B  a nuclear envelope

C  cell walls

D  a plasma membrane

A  membrane

B  transmembrane proteins

C  energy input

D  concentration gradient

A  osmosis

B  facilitated diffusion

C  active transport

D  simple diffusion

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

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

C  the active transport of water

D  diffusion of a solute through water

E  the movement of a substance against the concentration gradient

A  hypertonic

B  isotonic

C  hypotonic

A  Ionic bonds

B  Hydrophobic interactions

C  Covalent bonds

D  Hydrogen bonds

A  transmembrane

B  peripheral

C  integral

A  No phosphate groups

B  More carbon-carbon double bonds

C  Three phosphate groups

D  A different base

A  Backbone bonds

B  Phosphate groups

C  Nitrogenous bases

D  Sugars

A  GCUAAUCA

B  GCGAATGA

C  CGATTAGT

D  GCTAATCA

A  catalyze reactions

B  form a double helix

C  be its own template for replication

D  carry genetic information

A  been denatured

B  formed secondary structure

C  been folded into proper functional shape

D  formed primary structure

A  tertiary structure

B  secondary structure

C  quaternary structure

D  all of these

A  tertiary

B  primary

C  quaternary

D  secondary

A  cellulose

B  glucose

C  glycogen

D  lactose

E  starch

A  starch

B  keratin

C  chitin

D  glycogen

A  steroids

B  polypeptides

C  polysaccharides

D  phospholipids

A  are sharply bent

B  have a low melting point

C  are densely packed

D  are liquid at room temperature

A  6

B  8

C  4

D  5

A  protein

B  DNA

C  lipid

D  RNA

A  is more acidic.

B  is less toxic.

C  has a lower concentration of hydrogen ions.

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  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  melted butter

B  DNA from an onion

C  protein from a steak

D  sugar from an orange

A  Water forms hydration shells

B  Water has a high heat of vaporization

C  Hydrophobic interactions

D  Sea water acts as a solvent

E  Surface tension

A  oxygen

B  hydrogen

C  nitrogen

D  carbon

E  sulfur

A  their opposite charges.

B  their sharing a pair of valence electrons.

C  hydrophobic interactions.

D  neutron interactions.

A  Carbonyl

B  Phosphate

C  Methyl

D  Hydroxyl

A  covalent bond

B  double bond

C  hydrogen bond

D  ionic bond

A  evolution

B  preconception

C  natural history.

D  preservation.

A  Jaguars, giant anteaters, macaw parrots, capybara rodents

B  Endocrine system

C  3 toed sloths

D  Amazon River Basin

E  School of piranhas

A  Organization

B  Homeostasis

C  Metabolism

D  Sensitivity

A  All of the choices are characteristics of living organisms.

B  to be organized

C  to metabolize

D  to respond

E  to grow

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  There are many other potential hypotheses.

B  There is no way to invalidate it.

C  It is not testable.

D  The results are not repeatable.

A  Germination rate

B  Seeds in the dark

C  Direct sunlight

D  Moisture

E  Artificial light

A  Yes, because there is more than one variable.

B  No because there is only one variable and a control

C  No, because there is not more than one variable

D  Yes, because there is one variable and a control

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

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

C  Individuals with access to fluoridated water.

D  Individuals with access to water with no fluoride added.

A  experimental variable

B  stable variable

C  control

D  altered variable