Test 2

Question 1

phototropism is demonstrated when

Answer 1

a plant grows towards the sun

Question 2

what is an angiogram

Answer 2

a test that creates a photograph of the blood flow in the arteries or veins

Question 3

what is amniocentesis

Answer 3

atf or amniotic fluid test. Medical procedure used in prenatal diagnosis of chromosomal abnormalities, fetal infections, and determination of sex

Question 4

ionic bond between two elements involves

Answer 4

a transfer of electrons

Question 5

low pH in the stomach, cilia present in the trachea, and mucus present in the nasal cavity are all examples of what

Answer 5

primary defenses

Question 6

cells in the body recognizing a pathogen is an example of what kind of defense

Answer 6

third defense

Question 7

The movement of air through the respiratory system depends on what

Answer 7

how hard the lungs push air out of the body

Question 8

Bowman’s capsule, glomeruli, nephrons are found where

Answer 8

the kidneys

Question 9

An amino acid contains 2 groups. What are they

Answer 9

R-NH2 amine and R-COOH carboxyl

Question 10

name an element that is most likely to be found in an organic compound

Answer 10

carbon

Question 11

Blue litmus paper turns red when the pH of a solution is

Answer 11

acidic a reading of less than 7 on a pH scale

blue litmus paper will stay blue if a solution is basic

Question 12

red litmus paper turns blue when the pH of a solution is

Answer 12

basic- a reading of greater than 7 on a pH scale

red litmus paper will stay red if a solution is acidic

Question 13

Neutral litmus paper is what color

Answer 13

purple

Question 14

what forms when an acid reacts with an active metal such as zinc

Answer 14

a salt and H2 gas

Question 15

liver, pancreas and gallbladder are all examples of what

Answer 15

accessory organs

Question 16

Bile is produced in __ and the is stored in the___ and helps to digest___ via ___

Answer 16

liver-gallbladder- fats- emulsification

Question 17

formula for power

Answer 17

P=IV power= current x voltage

Question 18

protease is an enzyme digests what

Answer 18

proteins

Question 19

breathing occurs through the actions of the what

Answer 19

diaphragm

Question 20

axon, dendrite, myelin sheath are all part of what

Answer 20

physical part of a nerve cell

Question 21

why are metals malleable

Answer 21

electron clusters

Question 22

a solution with a hydrogen ion concentration of

1 x 10^ -2 would be considered what

Answer 22

acidic because a pH reading of 2 is less than 7 which makes is acidic

Question 23

refraction is what

Answer 23

the bending of light

Question 24

rods vs cones

Answer 24

rods are numerous and define general shades of light and function best in low light
cones are few they define colors and bright light conditions

Question 25

if rods were damaged the nerves of the eye would not be able to see well

Answer 25

in low light conditions

Question 26

collisions between molecules have what type of effect on kinetic energy

Answer 26

they have no energy gain or loss. Kinetic energy remains the same. * elastic collision. typically rare

Question 27

eggs are produced where in the female body

Answer 27

ovaries

Question 28

what color lights are best absorbed by chlorophyl

Answer 28

red and blue

Question 29

what wavelengths is chlorophyl best absorbed at

Answer 29

red and blue light is usually btwn 660 and 430nm

Question 30

stigma, pistil, style are all examples of what

Answer 30

female plant reproductive system

Question 31

what # scale is the pH scale on?

Answer 31

a scale of 10. so a pH of 3 is 1000 times stronger than a pH of 6. 3pH difference = 10x10x10

Question 32

what type of solution has fewer hydronium ions and more hydroxide ions

Answer 32

a basic solution

Question 33

what is a transverse wave

Answer 33

a wave that moves perpendicular and does not have compression or expansion. ex ripple in pond

Question 34

what is the atomic mass of carbon

Answer 34

12

Question 35

the phloem of a plant transports what

Answer 35

the food from the leaves

Question 36

xylem transports what in plants

Answer 36

water from the roots to the leaves

Question 37

cellular respiration releases what in plants

Answer 37

oxygen through the leaves

Question 38

what is the golgi apparatus

Answer 38

modifies and repackages lipids and proteins and sends them throughout the cell

Question 39

red blood cells consist of what

Answer 39

hemoglobin and enzymes purpose is to carry oxygen

Question 40

formula for the area of a square

Answer 40

area of a square= width x length

Question 41

formula to find the circumference of a circle

Answer 41

c=2 x radius x pie (3.14)

Question 42

Formula for acceleration

Answer 42

divide the change in velocity (aka speed) by the change in time

Question 43

how do you find momentum and how is it measured?

Answer 43

multiply mass by velocity (speed) or p=mv measured in kg*m/s

Question 44

Newtons are measured in what kind of units?

Answer 44

Newtons are the unit that measure for force which is calculated by force= mass*acceleration (f=ma) the unit is measured in kg*m/s^2

Question 45

pepsin enzymes help digest ___ in the stomach

Answer 45

proteins

Question 46

___ helps protect the stomach lining during digestion and hormones stimulate acids, and ions join to create ____ which helps break down food

Answer 46

mucus ; hydrocholoric acid

Question 47

name two neutral gasses that don't invoke a color change in litmus paper

Answer 47

nitrogen and oxygen