Vocab test 1

Question 1

evolution- explains diverstiy

Answer 1

(defined most succinctly as changes in the genetic structure of a population over time

Question 2

adaptations

Answer 2

(adaptations are traits that help an organism survive in its current environment)

Question 3

natural selection

Answer 3

adapts life to the environment, is a process by which a population becomes better adapted to its’ environment over time, means by which evolution can occur: individuals that are better adapted to their environment are better able to survive, reproduce, and pass on their traits (their genes) to the next generation.

Question 4

nat sel/ “differential reproduction”

Answer 4

– the best adapted individuals are more likely to reproduce than less well adapted individuals

Question 5

Life

Answer 5

The condition that distinguishes living organisms from non-living matter. Some features of life include: order, the need for energy, growth and development, regulation of one’s internal environment, the ability to reproduce, the ability to respond to one’s external environment, and evolutionary adaptation.

Question 6

biomolecules

Answer 6

molecules found in living organisms

Question 7

polar molecule

Answer 7

different electrical properties on opposite ends

Question 8

covalent bonds

Answer 8

sharing e-

Question 9

cohesion

Answer 9

cohesion is a physical property of particles or molecules of the same substance sticking together

Question 10

surface tension

Answer 10

resistance to disruption at the surface

Question 11

specific heat

Answer 11

amount of E to raise temp in a unit (usually a mole)

Question 12

hydrophilic

Answer 12

Compounds that dissolve readily in water

Question 13

hydrophobic.

Answer 13

compounds that do not interact with water

Question 14

anabolism

Answer 14

joining monomers to form a polymer

Question 15

catabolism

Answer 15

polymer can be broken down into its monomers by

Question 16

metabolism

Answer 16

is the set of chemical reactions that happen in living organisms to maintain life.

Question 17

-ose

Answer 17

used to describe carbohydrates

Question 18

monosaccharides examples

Answer 18

glucose (also known as dextrose), fructose, ribose, galactose, and ribulose

Question 19

disaccharides: maltose

Answer 19

glucose + glucose

Question 20

disaccharides: sucrose (table sugar)

Answer 20

glucose+ fructose

Question 21

disaccharides: lactose (milk sugar)

Answer 21

glucose + galactose

Question 22

starch

Answer 22

polymer of glucose, used by plants to store excess sugar

Question 23

celleulose

Answer 23

polymer of glucose. most abundant polymer on the planet- maintains a healthy digestive tract for humans

Question 24

chitin

Answer 24

polysaccharide- forms exoskeletons