Photosynthis- Science Flashcards

1
Q

Function of flower- petal

A

Brightly colours and often fragrant petals attract pollinators like insects and birds to the flower

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2
Q

Nectaries

A

These are glands located at the base of the flower that produce nectar a sugary liquid that serves as a reward for pollinators

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3
Q

Sepals

A

Typically green and leaf like, protect the flower vud before it opens up

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4
Q

Car pistal

A

The female reproductive part of the flower, consisting of three parts
Stigma-sticky top part that recieves pollen
Style-the tube that conects the stigma to the ovary
Ovary-the swollen base that contains ovules

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5
Q

Ovule

A

The structure withen the ovary that develops into a seed after fertilizartion

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6
Q

Stamen

A

The make reproductive part of the flower consisting of
Anther0 the part that produces pollen
Filament the stalk that holds up the anther

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7
Q

Adaptions for wind and insect pollination

A

Wind Pollination:
• Flowers tend to be small and less colorful.
• Produce large quantities of lightweight pollen that can easily be carried by the wind.
• Lack or have reduced petals since they do not need to attract pollinators.
• Have long styles and stigmas that extend out to catch airborne pollen.

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8
Q

Insect pollentation:

A

Insect Pollination:
• Flowers are usually brightly colored and fragrant to attract insects.
• Produce sticky or heavier pollen that adheres to the bodies of insects.
• Have specialized structures, such as landing pads, to facilitate insect visits.
• Often produce nectar as a reward for pollinators

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9
Q

Distinction Between Pollination and Fertilization -(p)

A

Pollination: The process of transferring pollen from the male anther to the female stigma. This can occur via wind, water, or animals (insects, birds, etc.).

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10
Q

Distinction Between Pollination and Fertilization (f)

A

Fertilization: The fusion of male (sperm) and female (egg) gametes, leading to the formation of a zygote. This occurs after successful pollination when the pollen tube grows down the style and releases sperm into the ovule.

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11
Q

Osmosis

A

Osmosis: The movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration until equilibrium is reached.

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12
Q

Water Movement into Roots

A

Water Movement into Roots: Water enters the root hairs by osmosis. The concentration of solutes in the root cells is higher than in the soil water, creating a gradient that allows water to move from the soil into the root cells, aiding in nutrient uptake.

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13
Q

Definition of Photosynthesis

A

Photosynthesis: Process where plants convert light energy into glucose using carbon dioxide and water

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14
Q

Testing for Glucose:

A

Use Benedict’s solution; color change indicates glucose presence.

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15
Q

Testing for Starch: Use iodine; it turns blue-black if starch is present.

A

Use iodine; it turns blue-black if starch is present.

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16
Q

Upper Epidermis:- cross leaf section

A

Upper Epidermis: Protects and allows light in.

17
Q

Palisade Mesophyll:-cross leaf

A

Main site for photosynthesis with many chloroplasts.

18
Q

Spongy Mesophyll: (CL)

A

Spongy Mesophyll: Allows gas exchange and has some chloroplasts.

19
Q

Lower Epidermis:(CL)

A

Lower Epidermis: Contains stomata for gas exchange.

20
Q

Xylem and Phloem: (CL)

A

Xylem and Phloem: Transport water (xylem) and sugars (phloem).

21
Q

Germination:

A

The process of a seed growing into a plant:

22
Q

ImbibitioN

A

Seed absorbs water and swells.

23
Q

Activation: Enzymes start working

A

Enzymes in plant start working

24
Q

Activation: Enzymes start working

A

Enzymes in plant start working

25
Q

Radicle Emergence:
Shoot Emergence:

A

Radicle Emergence: Root breaks through the seed coat.
4. Shoot Emergence: Shoot grows upwards towards light.

26
Q

Radicle Emergence:
4. Shoot Emergence:

A

Radicle Emergence: Root breaks through the seed coat.
4. Shoot Emergence: Shoot grows upwards towards light.

27
Q

Order for germanation :

A

Imbibition: Seed absorbs water and swells.
2. Activation: Enzymes start working.
3. Radicle Emergence: Root breaks through the seed coat.
4. Shoot Emergence: Shoot grows upwards towards light.

28
Q

Parts of a leaf

A

Upper Epidermis:
2. Palisade Mesophyll:
3. Spongy Mesophyll:
4. Lower Epidermis:
5. Xylem and Phloem:

29
Q

Parts of a leaf

A

Upper Epidermis:
2. Palisade Mesophyll:
3. Spongy Mesophyll:
4. Lower Epidermis:
5. Xylem and Phloem:

30
Q

Parts of a flower

A

Petals:
Nectaries
Sepals
Carpel
Stigma
Style
Ovary
Ovule
Stamen
Anther
• Filament

31
Q

Parts of flower

A

Petals:
Nectaries
Sepals
Carpel
Stigma
Style
Ovary
Ovule
Stamen
Anther
• Filament