Exam 1

Question 1

Turbidity is measured using a ___________.

Answer 1

Transparency tube

Question 2

Velocity is measured by using ________

Answer 2

Distance traveled (feet) in seconds = ft/sec 
Or length/time

Question 3

What are the two macro invertebrates?

Answer 3

Riffles and quiet areas

Question 4

Strong current areas

Answer 4

Riffles

Question 5

Slow to no current

Answer 5

Quiet areas

Question 6

Velocity=

Answer 6

Feet/seconds= velocity

50/100= 0.5 ft/sec

Question 7

Which can hold more DO? Water that is 25C or 20C?

Answer 7

20C

Colder water can hold more

Question 8

Name two abiotic factors that affect amount of DO in water?

Answer 8

(1) temperature
(2) water depth
(3) amount of light

Question 9

T or F. Most organisms will survive in water that has a pH of 7.0.

Answer 9

True

Question 10

Kilo= ?

Answer 10

1000 meters

Question 11

Meter or gram= ___cm

Answer 11

100 cm

Question 12

Centi= ?

Answer 12

0.01 meters

Question 13

Mili= ?

Answer 13

0.001 meters

Question 14

um= ?

Answer 14

10^-6
OR
0.0000006

Question 15

45 mm= _____ cm

Answer 15

4.5
Move decimal to right one.
Centi=0.01

Question 16

4.5 cm=_____ m

Answer 16

0.045 m
Move decimal to right one
Mili=0.001 meters

Question 17

How do you calculate volume?

Answer 17

Length X width X depth

Question 18

Name the temperature of boiling water in F and C. Name the temperature of freezing water in F and C

Answer 18

212 F and 100 C

32 F and 0 C

Question 19

How do you estimate the volume of a solid?

Answer 19

Water in the cylinder, drop the solid, measure where water rises

Question 20

What makes prokaryotes different from eukaryotes?

Answer 20

Prokaryotes are smaller
They don’t have a nuclei
No mitochondria or ER
No membrane-bound organelles

Question 21

What makes prokaryotes similar to eukaryotes?

Answer 21

Plasma membrane
Ribosomes
DNA
Cytoplasm

Question 22

Temperature is measured by using a ____________.

Answer 22

Thermometer

Question 23

Name 3 examples of prokaryotes

Answer 23

bacteria
Nostoc
Oscillatoria

Question 24

Fluid in the cell

Answer 24

Cytoplasm

Question 25

Support and protection

Answer 25

Cell wall

Question 26

Allows some things to go in and out of cell

Answer 26

Cell membrane

Question 27

Storage of genetic info

Answer 27

Nucleus

Question 28

Ribosomal formation

Answer 28

Nucleolus

Question 29

Photosynthesis

Answer 29

Chloroplasts

Question 30

Cellular respiration

Answer 30

Mitochondria

Question 31

Protein synthesis

Answer 31

Ribosomes AND rough ER

Question 32

Lipid synthesis

Answer 32

Smooth er

Question 33

Intracellular digestion

Answer 33

Lysosomes

Question 34

Genetic info

Answer 34

Chromosomes

Question 35

Storage of substances

Answer 35

Vacuole

Question 36

Differences between plant and animal cells

Answer 36

Plants: Large central water vacuole Cell wall Chloroplasts Animal: Centriole

Question 37

Diffusion

Answer 37

Higher to lower concentration

Question 38

Osmosis

Answer 38

Diffusion of water across semi permeable membrane

Question 39

What osmosis experiments did we do in class?

Answer 39

(1) sugar in dialysis tube | (2) salt water on elodea cell

Question 40

What experiments on diffusion did we do in class?

Answer 40

(1) iodine into dialysis tube | (2) crystal of potassium

Question 41

What are the three types of tonicity?

Answer 41

Isotonic Hypotonic Hypertonic

Question 42

Hypertonic

Answer 42

Water leaves the cell

Question 43

Hypotonic

Answer 43

Water goes into cell

Question 44

Isotonic

Answer 44

Same concentration on inside and outside of cell

Question 45

Which swelled more and why? Corn or peas

Answer 45

Peas because they had higher protein

Question 46

Lower or higher concentration of sucrose leads to swelling? And why.

Answer 46

Lower because it's easier for water to enter membrane

Question 47

What's the equation for calculating standard weight gain?

Answer 47

Final weight- initial weight Final weight- initial weight/initial weight

Question 48

What net did we use to college insects in the water?

Answer 48

Stream net

Question 49

What net did we use to college insects in the field?

Answer 49

Sweep net

Question 50

How many legs are found on insects?

Answer 50

6

Question 51

Where is the mirror adjustment knob located?

Answer 51

On the side of the base

Question 52

Where is the magnification changing knob?

Answer 52

At top near eyepiece/ ocular lens