Exercises on leaf morphology


At sheetsare the main bodies responsible for photosynthesis of the plants. In addition, they exchange gas with the environment and control water loss.

We prepare a list of exercises on leaf morphology so you can test your knowledge of the different types of sheets in the Kingdom Plante.

You can consult the template and save this exercise list in PDF at the end of the post!

Exercises on leaf morphology

1) (PUC-RS) The sheets can undergo a series of adaptations to perform a wide variety of functions. An example of a typical leaf adaptation to help secure the plant to the substrate are:

a) the thorns.
b) the tendrils.
c) the aculeus.
d) the bracts.
e) the cataphiles.

2) Leaves are generally laminar-shaped structures that are responsible for a large part of a plant's photosynthesis process. Note the alternatives below and mark the one where the name given to the flat surface of the leaves is found:

a) petiole.
b) limbo.
c) hem.
d) stipulation.
e) rib.

3) In some plant species, it is possible to observe that the base of the leaf surrounds the stem. This structure, found mainly in monocots, is called:

a) limbo.
b) petiole.
c) hem.
d) stipulation.
e) branch.

4) In the leaf limbs, it is possible to observe the ribs, which are the places through which the vascular system of plants passes. In a monocot, the leaves are classified, according to their vein, into:

a) curved.
b) palmatinerveas.
c) uninerve.
d) peltinerveas.
e) parallelinnerves.

5) (UFG) A student observed under the microscope the histological section of a plant organ, which revealed the following tissues and structures: epidermis with cuticle and stomata; parenchymal cells with chloroplasts; conductive tissue consisting of xylem and phloem. From the description, the student concluded that this body is:

a) a stipe.
b) a tubercle.
c) a bulb.
d) a trunk.
e) a sheet.

6) The figure below represents a simple sheet. Note the parts of the sheet indicated by the numbers.

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Sheet morphology exercises 6
Check the alternative that correctly displays the name of the parts indicated by the numbers.

a) 1- Limbo; 2- Petiole; 3- Sheath.
b) 1-Rib; 2- Limbo; 3- Sheath.
c) 1- Limbo; 2- Sheath; 3- Stipulation.
d) 1-Rib; 2- Limbo; 3- Petiole.
e) 1-Rib; 2- Petiole; 3- Stipulations.

7) In vegetables, especially in leaves, we find a structure related to water loss and gas exchange that is called:

a) limbo.
b) stipulation.
c) tendril.
d) stoma.
e) mesophyll.

8) (UNIRIO) In a recent experiment, the number of certain structures found in the leaves of four genera of fossil plants was measured. The purpose of the experiment was to measure the concentration of CO2 of the atmosphere during the time when the plants were alive, as it is known that the number of such structures is inversely proportional to the concentration of CO2 In the atmosphere. What structures are these?

a) Meristemas.
b) Stomata.
c) Petioles.
d) Pollen grains.
e) Gametophytes.

9) Leaves are very versatile structures in a vegetable, performing the most varied vital processes. Review the alternatives below and check the one that does not indicate an activity that can be assigned to the sheet:

a) The leaves carry out photosynthesis.
b) The leaves carry out the breathing process.
c) The leaves eliminate water in the liquid state through the guttation process.
d) The leaves function as a nutrient reserve.
e) The leaves absorb water and mineral salts.

10) (UCPel) The four basic parts that a leaf can present are a leaf blade, a peduncle, a basal expansion, which covers the stem, and filamentous projections or blades. These parts of the sheet are respectively called:

a) sheath, petiole, limbus and stipules.
b) limbus, stipules, petiole and sheath.
c) petiole, limbus, stipules and sheaths.
d) petiole, sheath, stipules and limbus.
e) limb, petiole, sheath and stipules.

Template

1 — b
2 — b
3 — c
4 — and
5 — and

6 — d
7 — d
8 — b
9 and
10 — and

Click here to save this exercise list to PDF!

See too:

  • List of flower exercises
  • List of exercises on Botany
  • List of exercises on bryophytes

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