Midterm

A  True

B  False

A  False

B  TRUE

A  TRUE

B  False

A  lysosomes

B  nuclei

C  smooth ER

D  rough ER

A  Golgi apparatus

B  nuclear envelope

C  vacuole

D  plasma membrane

A  cell walls

B  a plasma membrane

C  organelles

D  a nuclear envelope

A  transmembrane proteins

B  concentration gradient

C  membrane

D  energy input

A  simple diffusion

B  facilitated diffusion

C  osmosis

D  active transport

A  the active transport of water

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

C  diffusion of a solute through water

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

E  the movement of a substance against the concentration gradient

A  isotonic

B  hypotonic

C  hypertonic

A  Covalent bonds

B  Hydrophobic interactions

C  Ionic bonds

D  Hydrogen bonds

A  peripheral

B  integral

C  transmembrane

A  More carbon-carbon double bonds

B  No phosphate groups

C  A different base

D  Three phosphate groups

A  Phosphate groups

B  Backbone bonds

C  Nitrogenous bases

D  Sugars

A  GCUAAUCA

B  CGATTAGT

C  GCTAATCA

D  GCGAATGA

A  carry genetic information

B  form a double helix

C  be its own template for replication

D  catalyze reactions

A  formed primary structure

B  been folded into proper functional shape

C  formed secondary structure

D  been denatured

A  quaternary structure

B  secondary structure

C  tertiary structure

D  all of these

A  tertiary

B  secondary

C  quaternary

D  primary

A  glucose

B  glycogen

C  lactose

D  cellulose

E  starch

A  glycogen

B  starch

C  chitin

D  keratin

A  polypeptides

B  polysaccharides

C  steroids

D  phospholipids

A  have a low melting point

B  are liquid at room temperature

C  are sharply bent

D  are densely packed

A  4

B  8

C  6

D  5

A  DNA

B  lipid

C  RNA

D  protein

A  is less toxic.

B  is more acidic.

C  has a lower concentration of hydrogen ions.

D  has a higher concentration of oxygen atoms.

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

B  Hydrogen bonds hold water molecules together; many hydrogen bonds must be broken for water to evaporate.

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

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

A  sugar from an orange

B  melted butter

C  DNA from an onion

D  protein from a steak

A  Sea water acts as a solvent

B  Water forms hydration shells

C  Hydrophobic interactions

D  Surface tension

E  Water has a high heat of vaporization

A  oxygen

B  sulfur

C  nitrogen

D  carbon

E  hydrogen

A  hydrophobic interactions.

B  neutron interactions.

C  their sharing a pair of valence electrons.

D  their opposite charges.

A  Phosphate

B  Hydroxyl

C  Carbonyl

D  Methyl

A  ionic bond

B  hydrogen bond

C  double bond

D  covalent bond

A  preservation.

B  natural history.

C  evolution

D  preconception

A  3 toed sloths

B  Endocrine system

C  Jaguars, giant anteaters, macaw parrots, capybara rodents

D  School of piranhas

E  Amazon River Basin

A  Organization

B  Metabolism

C  Sensitivity

D  Homeostasis

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 have a cell wall as an outer boundary.

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

C  They are made of cells or cell products.

D  They are the products of evolution.

A  There is no way to invalidate it.

B  The results are not repeatable.

C  There are many other potential hypotheses.

D  It is not testable.

A  Direct sunlight

B  Moisture

C  Artificial light

D  Germination rate

E  Seeds in the dark

A  Yes, because there is one variable and a control

B  Yes, because there is more than one variable.

C  No, because there is not more than one variable

D  No because there is only one variable and a control

A  Individuals with access to fluoridated water.

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

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

D  Individuals with access to water with no fluoride added.

A  control

B  stable variable

C  experimental variable

D  altered variable