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Flashcards in Photosynthesis Deck (38):
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Nutrition

Obtaining and processing of food molecules. All living things obtain and process food molecules but the way they do it is different

1

What are two adaptations for obtaining glucose?

Autotrophic nutrition(photosynthesis) & heterotrophic nutrition (ingestion , digestion)

2

Autotroph

They are producers and can make their own food and change inorganic raw materials into organic products. Examples are plants and algae

3

Heterotroph

Cannot make their own food, examples are animals

4

Autotrophic nutrition

☀️. (Light energy ) ----> glucose. (chemical bond energy)

5

Respiration

The release of energy from chemical bonds of glucose, energy is transferred to the chemical bonds of atp. Respiration is a life process but photosynthesis is not , it's a type of nutrition Chemical energy(glucose) to chemical energy ATP

6

Photosynthesis

Light energy to chemical energy

7

How are the energy generating chemical reactions photosynthesis and respiration related?

Products made from photosynthesis are used as reactants in respiration and vice versa,.....their opposite

8

Cuticle

Waxy covering of leaf for protection and prevents excess water loss

9

Stomates(stoma ,stomata)

Open and close to allow for movement for water vapor and gas (CO2 and O2)

10

Guard cells

Kidney shaped cells around stomates and regulate opening and closing by swelling with water when needed

11

Palisade mesophyll

Where photosynthesis occurs and one or two cells thick. Lots of chloroplast

12

Spongy mesophyll

Lots of air space to allow for gas exchange

13

Plant transport

Veins"vascular bundle", xylem,phloem

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Veins

Contains vascular tissue

15

Xylem

Water and materials UP ONLY

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Phloem

"Ph"food. Nutrients ALL DIRECTIONS

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Path of water takes up through a plant

Into roots-through xylem-to leaves-out through stomates when guard cells are opened

18

Root hairs

Increase surface area for greater absorption

19

Root pressure

Osmotic pressure in xylem of a root

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Capillary action

Tendency of liquid to rise inside narrow tubes

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Transpirtation

Evaporation of water off leaves

22

Transpiration pull

Chief process that moves water through xylem

23

Pigments

Substances that absorb certain wavelengths of light energy and reflect others example is chlorophyll it absorbs red orange blues and violets but reflects green and yellow

24

Pigments founded in plants

Carotenes-orange Xanthophyll -yellow

25

Chromatography

Used to separate pigments by separating the mixture by solubility or ability to dissolve. The more sociable the better to dissolve and it will move farther up the paper, less solvable materials will adhere better

26

Light

Travels in waves(photons,white light)

27

Photons

Packages of light energy

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White light

Made of a spectrum of colors

29

What is the photosynthesis formula ?

CO2+H2O+Sunlight --> O2+H2O+C6H12O6 (organic raw materials). (Organic c+h). Reactants Product

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Photosynthesis summary

Energy= sunlight --> chemical bonds in glucose. Materials used(reactants)= carbon dioxide and water and sunlight. Materials produced(product)= glucose(organic) and water/oxygen(waste product) Time frame= daylight hours Location(organelle)= chloroplast Importance= stores energy from sun and made atp available to other organisms

31

Oxidation

Any chemical change in which an atom or molecule loses an electron and hydrogen and phosphate Leo

32

Reduction

Any chemical change in which and atom or a molecule gains an electron and hydrogen and phosphate Ger

33

Redox

Oxidation and reduction occurring at the same time

34

Biochemical pathway

Sequence of chemical reactions that leads to a particular results. Reactions require enzymes and enzymes require coenzymes

35

Coenzymes act as hydrogen acceptors

Can accept H+ NADP + H --> NAPPH. Gain H....GER...reduced

36

Light dependent reaction

Location- grana. Water is split(photolysis) and oxygen is released into the atmosphere. NADPH and ATP are made to be used in light independent reaction

37

Light independent reaction or Calvin cycle or carbon fixation

Location - stroma. Enzyme Rubisco converts inorganic CO2 into organic glucose by combining two PGAL molecules (a 3 C molecule)