Midterm

A  False

B  True

A  False

B  TRUE

A  False

B  TRUE

A  lysosomes

B  nuclei

C  smooth ER

D  rough ER

A  vacuole

B  Golgi apparatus

C  plasma membrane

D  nuclear envelope

A  cell walls

B  a nuclear envelope

C  organelles

D  a plasma membrane

A  transmembrane proteins

B  energy input

C  concentration gradient

D  membrane

A  osmosis

B  active transport

C  simple diffusion

D  facilitated diffusion

A  diffusion of a solute through water

B  the active transport of water

C  the movement of a substance against the concentration gradient

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

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

A  hypertonic

B  isotonic

C  hypotonic

A  Hydrogen bonds

B  Covalent bonds

C  Ionic bonds

D  Hydrophobic interactions

A  transmembrane

B  peripheral

C  integral

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  GCUAAUCA

B  GCGAATGA

C  CGATTAGT

D  GCTAATCA

A  carry genetic information

B  be its own template for replication

C  form a double helix

D  catalyze reactions

A  been folded into proper functional shape

B  been denatured

C  formed primary structure

D  formed secondary structure

A  quaternary structure

B  tertiary structure

C  all of these

D  secondary structure

A  primary

B  tertiary

C  quaternary

D  secondary

A  lactose

B  starch

C  glucose

D  cellulose

E  glycogen

A  keratin

B  starch

C  chitin

D  glycogen

A  polysaccharides

B  steroids

C  phospholipids

D  polypeptides

A  are sharply bent

B  are densely packed

C  are liquid at room temperature

D  have a low melting point

A  8

B  6

C  4

D  5

A  lipid

B  RNA

C  DNA

D  protein

A  has a higher concentration of oxygen atoms.

B  is more acidic.

C  is less toxic.

D  has a lower concentration of hydrogen ions.

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  protein from a steak

B  sugar from an orange

C  melted butter

D  DNA from an onion

A  Water forms hydration shells

B  Water has a high heat of vaporization

C  Sea water acts as a solvent

D  Hydrophobic interactions

E  Surface tension

A  oxygen

B  hydrogen

C  nitrogen

D  sulfur

E  carbon

A  hydrophobic interactions.

B  their sharing a pair of valence electrons.

C  neutron interactions.

D  their opposite charges.

A  Methyl

B  Carbonyl

C  Hydroxyl

D  Phosphate

A  ionic bond

B  double bond

C  covalent bond

D  hydrogen bond

A  preservation.

B  preconception

C  evolution

D  natural history.

A  Endocrine system

B  3 toed sloths

C  Jaguars, giant anteaters, macaw parrots, capybara rodents

D  School of piranhas

E  Amazon River Basin

A  Sensitivity

B  Metabolism

C  Homeostasis

D  Organization

A  All of the choices are characteristics of living organisms.

B  to metabolize

C  to respond

D  to grow

E  to be organized

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 is no way to invalidate it.

B  The results are not repeatable.

C  It is not testable.

D  There are many other potential hypotheses.

A  Direct sunlight

B  Artificial light

C  Moisture

D  Germination rate

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

C  Individuals with access to fluoridated water.

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

A  experimental variable

B  control

C  altered variable

D  stable variable