trivia lab exam q

Question 1

what is the law of segregation?

Answer 1

alleles pairs separate or segregate during formation

Question 2

you have a selectively permeable membrane, that is permeable to water and glucose. inside the selectively permeable membrane, you have 25% sucrose and 25% glucose solution, emerged in 2 liters water. within the bag there is a tube that leads out of the water. will any of the molecules move? if so, in which direction will they move?

Answer 2

water will move into the bag, pushing the sucrose up the tube. Glucose will move out of the bag into the water. sucrose will remain in the bag but move up the tube due to osmotic pressure.

Question 3

what organelles are found only in animal cells? and what organelles are found only in plant cells?

Answer 3

In animal cells: centrioles

in plant cells: cell wall, chloroplasts and central vacuole.

Question 4

what substance is used to detect for the presence of starch?

Answer 4

Iodine

Question 5

does Iodine have the ability to test for glucose (monomers that make up starch)?

Answer 5

No, it does not

Question 6

you have a 10mm drawing and the actual size of the specimen is 2mm, what is the magnification of your drawing?

Answer 6

10/2 = magnification of 5X

Question 7

what are the four stages of cellular respiration?

Answer 7

glycolysis
Acetyl CoA synthesis
Citric acid cycle
electron transport chain ( oxidative phosphorylation)

Question 8

where do the 4 stages of cellular respiration take place?

Answer 8

glycolysis- cytosol
acetyl CoA synthesis - mitochondrial matrix
citric acid cycle - mitochondrial matrix
Oxidative phosphorylation- inner mitochondrial membrane

Question 9

what is the final electron acceptor in the electron transport chain?

Answer 9

oxygen

Question 10

what are the waste products of cellular perspiration?

Answer 10

Co2, H2o, heat

Question 11

Carbon dioxide produced from cellular respiration reacts with water to produce what chemical substance? what is the function of this molecule?

Answer 11

Bicarbonate (carbonic acid)

Regulates blood pH

Question 12

give an example of fermentation. what are the products of this process?

Answer 12

Lactic acid fermentation- produces lactic acid, NADH

Alcohol Fermentation - produces ethanol, NADH and CO2

Question 13

what 2 colours are absorbed best by chlorophyll?

Answer 13

blue and red

Question 14

define photosynthesis

Answer 14

collection of CO2, H2O and energy to create organic molecules needed for cellular respiration to create energy for the organism

Question 15

what occurs during S phase in the cell cycle?

Answer 15

Replication of DNA

Question 16

where is the apical meristem found and what is its importance?

Answer 16

Apical Meristem is found at the end of the root cap of plants
apical Meristem functions as the embryonic region where active mitosis occurs in plants

Question 17

in a plant life cycle, is the sporophyte haploid or diploid? is the gametophyte haploid or diploid?

Answer 17

sporophyte is 2n and Gametophyte is n

Question 18

where does sperm production occur and what is the name of this process? and where does the production of an egg occur and what is the name of this process?

Answer 18

• sperm production of sperm occurs in the seminiferous tubules and is called spermatogenesis
• production of eggs occurs in the ovary and is called oogenesis

Question 19

what are the names of the structures that produce eggs in plants and the structure that produce sperm in plants?

Answer 19

producing Eggs: Archegonia

producing sperm: Antheridia

Question 20

what is the final product of mitosis and final product of meiosis?

Answer 20

Mitosis: mitosis produces 2 genetically identical daughter cells
Meiosis: produces 4 genetically diverse gametes

Question 21

define homozygous genotype and heterozygous genotype

Answer 21

Homozygous means containing 2 of the same genotype found in one organism
Heterozygous means containing 2 different genotypes found in the same organism

Question 22

if you have Type A blood, what antibodies do you produce and what antigens would you produce?

Answer 22

Produce A antigens and B antibodies

Question 23

if you have a mother with a phenotype of O blood and a genotype of OO and father with a phenotype of A and genotype of AO, what is the likelihood that the child will have O blood?

Answer 23

50% the child will have O blood

Question 24

if you have a mother with phenotype AB and a genotype of AB, and a child with genotype of AO, what genotype could the father have?

Answer 24

the father could be AO, BO, or OO

Question 25

which blood can act as a universal donor? why?

Answer 25

O- blood

O- blood can be the universal donor because it makes both A and B antibodies but no antigens

Question 26

what blood type acts as the universal acceptor? why?

Answer 26

AB+

AB+ blood is the universal acceptor because it makes no antibodies but both A and B antigens

Question 27

what is the function of smooth ERand what is the function of the rough ER?

Answer 27

Smooth ER functions to synthesize lipids

Rough ER functions to synthesize proteins that will be sent out of the cell

Question 28

name the 2 stages of photosynthesis

Answer 28

the light dependent reactions and the Calvin cycle

Question 29

primary productivity

Answer 29

the production of organic compounds by photosynthesis

Question 30

chlorophyll

Answer 30

feature that allows plants to be primary producers

Question 31

reacts for photosynthesis

Answer 31

water, light energy, CO2 and chlorophyll

Question 32

photosynthesis byproducts

Answer 32

glucose, oxygen and water

Question 33

why do most plants appear green?

Answer 33

the green colour is not absorbed, they also contain the pigment called chlorophyll

Question 34

accessory pigments that absorb light energy and pass it to chlorophyll

Answer 34

Carotenoids and phycobilins

Question 35

what is the significance of meiosis

Answer 35

ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.