LESSONNEW
Leaf Structure
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7th - 9th grade
Biology
20 minutes ago by
Steve Martin
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  • Slide 1
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    Leaf Structure

    Body text
  • Slide 2
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  • Question 3
    30 seconds
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    Q.

    This layer of cells is where photosynthesis occurs within the leaf; there are air spaces within this layer

    answer choices

    spongy mesophyll

    palisade mesophyll

    chloroplast

    upper epidermis

  • Question 4
    30 seconds
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    Q.

    The outermost layer of CELLS of the leaf is the

    answer choices

    cuticle

    epidermis

    spongy mesophyll

    bundle sheath

  • Question 5
    30 seconds
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    Q.

    Which part of the leaf consists of xylem and phloem?

    answer choices

    vascular bundle

    bundle sheath

    palisade mesophyll

    spongy mesophyll

  • Question 6
    30 seconds
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    Q.

    Which number is pointing to the xylem of the leaf?

    answer choices

    3

    4

    5

    6

  • Question 7
    30 seconds
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    Q.

    What is letter "D" pointing to?

    answer choices

    upper epidermis

    palisade mesophyll

    spongy mesophyll

    bundle sheath

  • Question 8
    30 seconds
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    Q.

    The column-like cells that lie directly underneath the epidermis makes up the

    answer choices

    spongy mesophyll

    palisade mesophyll

    cuticle

    bundle sheath

  • Question 9
    30 seconds
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    Q.

    What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

    answer choices

    Palisade cells

    Guard cell

    Spongy layer

    Lower epidermis

  • Question 10
    120 seconds
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    Q. The water needed for photosynthesis comes into the leaves through the
    answer choices
    upper epidermis
    stomata
    guard cells
    xylem cells
  • Question 11
    120 seconds
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    Q. The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
    answer choices
    upper epidermis
    phloem
    stomata
    guard cells
  • Question 12
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    Q. The leaf has a shiny, waxy cuticle around it to
    answer choices
    increase the rate of photosynthesis
    attract more light
    control water loss
    stop carbon dioxide and oxygen gases escaping
  • Slide 13
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  • Question 14
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    Q.

    The structure of guard cell ......

    answer choices

    has a small sap vacuole

    has thicker outer wall & thinner inner wall

    is a specialised mesophyll cell

    are kidney shape and exist in pairs

  • Question 15
    20 seconds
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    Q. Where are the stomata found on the leaf?
    answer choices
    On the cuticle
    In the mesophyll layer
    On the underside of the leaf
    In the vascular tissue
  • Question 16
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    Q.

    Leaves will have the highest number of stomata when

    answer choices

    temperatures are unusually high and CO2 levels are also high

    temperatures are low and CO2 levels are also low

    temps are high and CO2 levels are low

    temps are low and CO2 levels are high

  • Question 17
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    Q.

    A stoma is

    answer choices

    an opening

    a clot

    a cell that captures light energy

    a water tube

  • Question 18
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    Q.

    The main function of stomata is to

    answer choices

    capture sunlight

    protect leaves from insects

    allow gases to move rapidly in/out of leaves

    release sugars into the atmosphere

  • Question 19
    30 seconds
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    Q.

    Stomata are made of specialized cells called ______ which surround a tiny pore/opening

    answer choices

    stoma

    guard cells

    dermal cells

    diffusion channels

  • Slide 20
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  • Question 21
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    Q. Which organisms perform Photosynthesis?
    answer choices
    Only Autotrophs
    Only Heterotrophs
    Autotrophs and Heterotrophs
  • Question 22
    45 seconds
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    Q. How does carbon dioxide get into the leaves of a plant?
    answer choices
    It's absorbed by the roots
    It's made in a chemical reaction in the stem
    It enters through the stomata
    It goes through the flowers
  • Question 23
    45 seconds
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    Q.

    How does most of the water needed by the plant get into its leaves?

    answer choices

    It enters through the stomata

    The roots absorb it and then it travels up the stem

    It's made during a chemical reaction in the leaf

    The flowers capture water and deliver it to the leaves

  • Question 24
    30 seconds
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    Q.

    Is Glucose (C6H12O6) a Raw Material (Ingredient) or Product of Photosynthesis?

    answer choices

    Product

    Raw Material

    Neither

  • Question 25
    30 seconds
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    Q.

    Select all that are raw materials for Photosynthesis.

    answer choices

    Water

    Carbon Dioxide

    Oxygen

    Sunlight (Light Energy)

    Glucose (Sugar/food)

  • Question 26
    60 seconds
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    Q. Most plants appear green because chlorophyll
    answer choices
    absorbs green light.
    absorbs violet light.
    does not absorb green light.
    does not absorb violet light.
  • Question 27
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    Q. What are the products of photosynthesis?
    answer choices
    water and carbon dioxide
    oxygen and glucose
    oxygen and carbon dioxide
    oxygen and water
  • Question 28
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    Q. What molecule absorbs sunlight for photosynthesis?
    answer choices
    chloroplast
    thylakoid
    grana
    chlorophyll
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