Botany Quiz

 BOTANY 1

 

1.Chlorophyll appears green because

 

it absorbs the full spectrum of light

it reflects white light.

it absorbs green light

it reflects green light

 

2.Six molecules of carbon dioxide and five molecules of water are required to make one molecule of glucose.

 

• True

• False

3.Cellulose is

a polymer of glucose.

form plant cell walls.

found in plant cell membranes

forms the bulk of a plant's structure.

 

4.The light reaction of photosynthesis occurs in the

stroma of the chloroplast.

thakyloid membrane of the chloroplast.

granules of the chloroplast

 

5.Central vacuoles

allow gas exchange between plant cells

act as storage sites for water

are the site of photosynthesis.

are found in both plant an animal cells.

 

6.Plasmodesmata are part of the photosynthesis system in plants in plants.

• True

• False

7.The cell plate

divides the parent cell into two daughter cells.

is produced by the Golgi complex.

develops from the phragmoplast.

is an extension of the cell membrane.

 

8.Reduction and oxidation (redox) reactions

are found in all living cells.

usually involve an electron carrier molecule such as NAD.

require large amounts of oxygen.

are very rare in biological systems.

 

9.The enzyme ATP synthase is found in both photosynthesis and cellular respiration.

• True

• False

10.The dark reaction is so named because

it does not require energy from light.

it only happens at night.

it is the carbon-fixing step of photosynthesis.

it produces molecular oxygen as a byproduct.

 

11The role of Photosynthesis II is the production of ATP and NADPH.

 

• True

• False

 

12Plastids are organelles that

produce pigments

produce water

produce glucose by photosynthesis


 

13.Photolysis occurs in (the)

Photosystem I

Photosystem II

Calvin cycle


Answer

1. Chorophyll appears green because it reflects green light 

2. False

3. Cellulose is a polymer of glucose.

4.  The light reaction of the photosynthesis occurs in the thykaloid membrane of the chloroplast.

 

5. Central vacuoles act as a storage site for water. 

6. True

7. The cell plate develops from the phragmoplast

 

8. Reduction oxidation reaction such as NAD

 

9. True

10. Dark energy reaction is named because it does not require energy from light.

11. False

 

12 Plastids are organelles that produce pigments

 

13. Photolysis occurs in Photosystem II

 

 

Explanation

1. Chlorophyll appears green because most of the light it absorbs is in the spectrum leaving green and reflect it.

 

2. There should be six molecules of water and six CO² to make one molecule of glucose.

 

3. Cellulose is a polymer of glucose and   the main substance found in a plant cell wall

 

4. Photosynthesis is a process of making food from the energy of the sun. It is divided into two sets light reaction and Calvin cycle. Photosynthesis occurs in chloroplast, each chloroplast contains grana and grana consist of thykaloid membrane where the light reaction of photosynthesis occurs.

 

5. Central vacuoles acts as storage for water because the plant cell takes water and store it there which pushes against the plant cell wall, keeping the plant to stay fresh and not dry.

 

6 .Plasmodesmata are part of the photosynthesis system in plants because it is part of the movement of photosynthesis products from mature to developing and storage tissues. Rapid metabollic diffusion and other process of photosynthesis happens via plasmodesmata.

 

7. The cell plate is a disk like structure separating the two daughter cells. It is formed by the fusion of the vesicles of the  phragmoplast that grows in the center of cell wall.

8.  Nicotinamide Adenine Dinucleotide or (NAD) is involved in redox reactions, carrying electrons from one reaction to another.

 

9. Photosynthesis and cellular respiration are both biological processes important in plant life. Both processes involve ATP syntase.

 

10. Dark reaction of photosynthesis also called a light independent cycle or C3 cycle is in  the stroma of chloroplast These reactions utilise the usage of products released in the light reaction therefore it does not require or depend on light energy.

 

 

11. The photosynthesis II is the production of glucose from carbon dioxide.

 

12. Plastids have pigments that is used in photosynthesis.

 

13. The process of photosynthesis includes photolysis, the light reactions that use energy from sunlight to split water molecules and it happens in photosystem II