Midterm

A  True

B  False

A  TRUE

B  False

A  TRUE

B  False

A  nuclei

B  lysosomes

C  smooth ER

D  rough ER

A  plasma membrane

B  vacuole

C  Golgi apparatus

D  nuclear envelope

A  cell walls

B  organelles

C  a plasma membrane

D  a nuclear envelope

A  energy input

B  concentration gradient

C  transmembrane proteins

D  membrane

A  simple diffusion

B  active transport

C  osmosis

D  facilitated diffusion

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 net movement of a substance from higher to lower concentration

E  the active transport of water

A  hypertonic

B  hypotonic

C  isotonic

A  Ionic bonds

B  Hydrophobic interactions

C  Hydrogen bonds

D  Covalent bonds

A  peripheral

B  transmembrane

C  integral

A  A different base

B  More carbon-carbon double bonds

C  Three phosphate groups

D  No phosphate groups

A  Sugars

B  Backbone bonds

C  Nitrogenous bases

D  Phosphate groups

A  CGATTAGT

B  GCUAAUCA

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 folded into proper functional shape

C  been denatured

D  formed secondary structure

A  quaternary structure

B  all of these

C  tertiary structure

D  secondary structure

A  primary

B  quaternary

C  tertiary

D  secondary

A  glucose

B  starch

C  cellulose

D  glycogen

E  lactose

A  glycogen

B  starch

C  keratin

D  chitin

A  polysaccharides

B  polypeptides

C  steroids

D  phospholipids

A  have a low melting point

B  are densely packed

C  are sharply bent

D  are liquid at room temperature

A  5

B  6

C  4

D  8

A  RNA

B  lipid

C  DNA

D  protein

A  has a higher concentration of oxygen atoms.

B  has a lower concentration of hydrogen ions.

C  is more acidic.

D  is less toxic.

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

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

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  sugar from an orange

B  DNA from an onion

C  melted butter

D  protein from a steak

A  Surface tension

B  Water has a high heat of vaporization

C  Hydrophobic interactions

D  Water forms hydration shells

E  Sea water acts as a solvent

A  hydrogen

B  nitrogen

C  carbon

D  oxygen

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  Hydroxyl

D  Methyl

A  double bond

B  hydrogen bond

C  ionic bond

D  covalent bond

A  preservation.

B  natural history.

C  preconception

D  evolution

A  3 toed sloths

B  Amazon River Basin

C  Jaguars, giant anteaters, macaw parrots, capybara rodents

D  Endocrine system

E  School of piranhas

A  Organization

B  Homeostasis

C  Metabolism

D  Sensitivity

A  All of the choices are characteristics of living organisms.

B  to grow

C  to be organized

D  to respond

E  to metabolize

A  They are the products of evolution.

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

C  They have a cell wall as an outer boundary.

D  They are made of cells or cell products.

A  There are many other potential hypotheses.

B  The results are not repeatable.

C  There is no way to invalidate it.

D  It is not testable.

A  Direct sunlight

B  Artificial light

C  Germination rate

D  Seeds in the dark

E  Moisture

A  No, because there is not more than one variable

B  Yes, because there is one variable and a control

C  No because there is only one variable and a control

D  Yes, because there is more than one variable.

A  Individuals with access to fluoridated water.

B  Individuals with access to water with no fluoride added.

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

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

A  control

B  stable variable

C  experimental variable

D  altered variable