Lab 4

Question 1

how many membranes does a mitochondria have

Answer 1

2 membranes, outer and inner (folded into cristae)

Question 2

how many membranes does a chloroplast have

Answer 2

3 membranes, outer, inner, and internal (thylakoids)

Question 3

how to identify vacuoles in TEM

Answer 3

single membrane, fairly empty

Question 4

how to identify nucleus in TEM

Answer 4

double membrane, grainy, possible nucleoli

Question 5

how to identify chloroplasts in TEM

Answer 5

double membrane, internal membrane, grana

Question 6

how to identify chromoplasts and plastids in TEM

Answer 6

double membrane

Question 7

how to identify mitochondria in TEM

Answer 7

small, look like tomato slices

Question 8

how to identify golgi in TEM

Answer 8

series of sacs, blurry side view

Question 9

how to identify ER in TEM

Answer 9

individual sacs/tubes, dots=rough ER

Question 10

how to identify peroxisomes in TEM

Answer 10

darkly stained circles, near chloroplasts w/ mitochondria

Question 11

where does respiration start?

Answer 11

in the cytoplasm with glycolysis, produces pyruvate

Question 12

where in the mitochondria does the ETS cycle occur

Answer 12

on inner membrane

Question 13

where in the mitochondria does the TCA cycle occur

Answer 13

the matrix

Question 14

what is the final electron acceptor of ETS that becomes water

Answer 14

O2

Question 15

tetrazolium experiment

Answer 15

detects ETS activity by forming a red product
no activity in dead corn seeds

Question 16

thermos experiment findings

Answer 16

ETS and TCA produce heat

Question 17

CO2/O2 experiment findings

Answer 17

CO2 production decreases

Question 18

respiration

Answer 18

converts sugar + O2 unto H2O

Question 19

starting material for sugar production in photosynthesis

Answer 19

CO2

Question 20

photosynthesis

Answer 20

light is captured, energy stored in ATP and NADPH, used to build sugar

Question 21

pyrenoids

Answer 21

starch is produced in the chloroplast

Question 22

where do other plant tissues store starch

Answer 22

plastids (amyloplasts)

Question 23

what organelles are near chloroplasts and aid in photorespiration

Answer 23

peroxisome and mitochondria

Question 24

bundle sheath cells

Answer 24

make starch in CO2 rich area