Exam2 Pt.1

Question 1

The four nucleotides that make up DNA are:
-

Answer 1

• Adenine (A)
  
  • Thymine (T)
  • Cytosine (C)
  • Guanine (G)

Question 2

Protein synthesis begins in

Answer 2

in the nucleus of the cell, where a strand of DNA is transcribed into RNa

Question 3

also known as pre-mRNA.

Answer 3

of DNA is transcribed into a primary transcript of RNA,

Question 4

_________is a type of vascular tissue that is responsible for the conduction of water and dissolved minerals from the roots to the rest of the plant

Answer 4

The xylem

Question 5

allows for the distribution of nutrients and the removal of waste products. The

Answer 5

Xylem

Question 6

RNA splicing.

Answer 6

. The process of removing introns from the mRNA and joining exons

Question 7

. The enzyme that catalyzes this process is

Answer 7

. The is called RNA spliceosome

Question 8

Light reactions occur

Answer 8

Thylakoid and produce ATP

Question 9

Calvin. Cycle starts with what molecuel

Answer 9

Disphosphate RUBP

Question 10

able to describe the two stages of photosynthesis. Provide a summary of what happens in each step.What are the reactants and products of each step?

Where does each stage take place

Answer 10

Light Reactions
Products: NADPH and ATP

Reactants: water and sunlight

Location: Thylakoid membrane

Reason is to power Calvin Cycle (ADP, ATP)

Question 11

Stage 2

Answer 11

Calvin Cycle:
Products: Sugar

Reactants: CO2

Location: Stroma

Question 12

What donates an electron to photosystem II in the light reactions?

Answer 12

H20

Question 13

What are the products of the light reactions?

Answer 13

ATP and NADPH

Question 14

What molecule starts the Calvin Cycle?

Answer 14

Co2

Question 15

What does Rubisco do?

Answer 15

What does Rubisco do?

CO2 and sugar RuBP is combined via the enzyme

Question 16

What is photorespiration?

Answer 16

process in which the enzyme rubisco binds with oxygen instead of carbon dioxide

Reduces carbohydrate production

Question 17

Wet environments
Gymnosperms

Answer 17

Wet environments

Gymnosperms

Pine Trees, Conifers, Ginkgos, and Cycads

Question 18

Angiosperms

Answer 18

Food crops (fruits, corn, vegetables, wheat); grasses

Question 19

Xylem - Moves
Phloem – Move

Answer 19

Xylem - Moves water up a plant

Phloem – Moves food up or down a plant

Question 20

What is the function of roots?

Answer 20

What is the function of roots?
anchors plant, absorbs minerals and water, and stores carbohydrates

Question 21

gymnosperms and angiosperms?

Answer 21

Gymnosperms: seed bearing vascular plants in which the seed is not enclosed in an ovary
“naked seed” and Cone bearing
Angiosperms: seed bearing vascular plant in which the seed is enclosed in an ovary
“enclosed seed”, Flowering plants, Fruit

Question 22

Know the different parts of the flower including the male and female reproductive parts (matching).

Sepal:

Petals:

Carpel:

Stigma

Style

Ovary

Stamen:

Filament:

Anther:

Answer 22

Know the different parts of the flower including the male and female reproductive parts (matching).

Sepal: protects developing flower

Petals: attract pollinators

Carpel: Female reproductive parts

Stigma

Style

Ovary

Stamen: Male reproductive parts

Filament: stalk

Anther: pollen production

Question 23

What is pollination?
the

Answer 23

What is pollination?

the transfer of pollen from the male anther to the female stigma

Question 24

What is Deoxyribonucleic acid (DNA) and what is it made up of?

M

Answer 24

What is Deoxyribonucleic acid (DNA) and what is it made up of?

Primary information bearing molecule

Made up of 2 chains of nucleotides linked together to form a double helix

Question 25

What are the four nitrogenous bases and which ones are always paired together?

Answer 25

What are the four nitrogenous bases and which ones are always paired together?

ATGC

Adenine & Thymine

Guanine and Cytosine

Question 26

Know the difference between chromatin and chromosomes

Answer 26

【Answer】: A gene is a section of DNA that codes for a specific trait. Chromatin is a complex of DNA and protein that packages DNA into a compact, dense form, while chromosomes are structures within the cell nucleus made up of DNA and protein.

Question 27

.

【Answer】: A gene is a section of DNA that codes for a specific trait. Chromatin is a complex of DNA and protein that packages DNA into a compact, dense form, while chromosomes are structures within the cell nucleus made up of DNA and protein.

Answer 27

A gene