Biology Lab Final Exam

Question 1

what do nucleic acids do?

Answer 1

They store, transmit and express.

Question 2

what is the structure difference between DNA & RNA?

Answer 2

DNA is double stranded and RNA is single stranded

Question 3

What is the correct pairing of nitrogenous base?

Answer 3

A-T G-C

Question 4

What makes up chromatin?

Answer 4

DNA and Histone proteins

Question 5

what is the most important function RNA is responsible for?

Answer 5

Protein synthesis

Question 6

what is the enzyme that unwinds in DNA replication?

Answer 6

Helicase

Question 7

where is the only location that DNA polymerase can add new nucleotides to DNA replication?

Answer 7

3’ with the OH group

Question 8

what is lagging strand initially made off?

Answer 8

Okazaki fragments

Question 9

who took photo 51 that showed that DNA had a double helix?

Answer 9

Rosalind Franklin

Question 10

why do we use strawberries for DNA stretching?

Answer 10

It has a lot of DNA

Question 11

what specifically detaches the cell and nuclear membranes with DNA?

Answer 11

Hydrophobic tail with the detergent

Question 12

what is the hollow rod made of tubular protein that makes up part of the cytoskeleton in all eukaryotic cell?

Answer 12

Microtubule

Question 13

what is the 1st phase of interphase?

Answer 13

makes more organelles/makes proteins enzyme, increase cytoplasm

Question 14

what is the 2nd phase of interphase?

Answer 14

DNA is replicated

Question 15

What is the 3rd phase of interphase?

Answer 15

makes more organelles/ makes more proteins enzyme, increase cytoplasm

Answer 16

prophase, metaphase, anaphase, telophase, cytokinesis

Question 17

describe the difference between diploid cell and haploid cells

Answer 17

diploid cells have 2 sets of chromosome

haploid have 1 set of chromosome

Question 18

what happens during crossing over

Answer 18

the homologous chromosome exchange genetic information (DNA)

Question 19

What is the difference between mitosis and meiosis?

Answer 19

mitosis results in 2 genetically identical cells

meiosis 4 genetically different cells with half the chromosome count of reproduction

Answer 20

Cytose (blue space)
inter membrane (nickelodeon)
matrix (inside the nickelodeon)

Question 21

what does ATP stands for?

Answer 21

adenosine tri-phosphate

Question 22

what is the difference between oxidation and reduction?

Answer 22

oxidation when a molecule loses and electron

reduction gaining of a electron

Question 23

what is lactic acid formation?

Answer 23

anaerobic respiration
where pyruvate is converted to lactase acid
when oxygen is scarce

Question 24

describe lactic acid fermentation

Answer 24

working out

Question 25

describe the first stage of cellular respiration

Answer 25

glycolysis, occurs in the cytosol, glucose in broken down into pyruvate, 2ATP and 2NADH are produced

Question 26

what is alcohol fermentation?

Answer 26

anaerobic respiration, when pyruvate is conversion to alcohol, when oxygen is scarce

Question 27

describe an example of alcohol fermentation

Answer 27

moonshine

Question 28

describe the second state of cellular respiration?

Answer 28

Oxidation pyruvate, occurs in the mitochondrial matrix, pyronate is converted to acetyl Coa, 2NADH are produced

Question 29

describe the 3rd stage of cellular respiration

Answer 29

Krebs cycle, occurs in the mitochondria Matrix, the acetyl CoA is converted to carbon dioxide. 6NADH 2 FADH 2 ATP

Question 30

Describe the 4 stages of cellular respiration

Answer 30

electron transport train and chemiosmosis, inter mitochondrial member oxygen is the finally inspector 34 ATP are produced

Question 31

in the cellular respiration lab videos what is being measure of observed cellular respiration

Answer 31

carbon dioxide solid accumulation in the cotton restproimitor