To the angiospermsare the group of plants that have complete individuals with source, stalk, sheet, flowers, fruits and seeds. This is the only group of plants in which the seeds are protected by the fruits.
We prepared a list of exercises on angiosperms so you can test your botanical knowledge of this group.
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You can consult the feedback and save this list of exercises in PDF at the end of the post! Enjoy!
1) Observe the figure and mark the alternative that corresponds to the names of structures I, II, III, IV, V and VI, respectively.
a) I- Peduncle, II- floral receptacle, III- calyx, IV- corolla, V- pistils, VI- stamens.
b) I- floral receptacle, II- peduncle, III- calyx, IV- corolla, V- stamens, VI- carpel.
c) I- Carpel, II- stamen, III- corolla, IV- calyx, V- pistil, VI- floral receptacle.
d) I- Peduncle, II- floral receptacle, III- stamen, IV- corolla, V- carpel, VI- stamen.
2) (FUVEST) In most angiosperms, the fruit is a structure formed from the development:
a) the ovary.
b) the fertilized egg.
c) the zygote.
d) the wall of the epicarp.
e) the fertilized oosphere.
3) (UFMS) Flowers are structures that play a role in the sexual reproduction of angiosperm plants, where different floral whorls can be distinguished, including:
a) tepals: set of petals of different colors; corolla: set of sepals; gynoecium: male reproductive system;
b) corolla: set of sepals; calyx: androecium-gynoecium assembly; perianth: set of petals;
c) corolla: set of sepals; gynoecium: male reproductive system; perianth: androecium-gynoecium joint;
d) calyx: set of petals; androecium: female reproductive system; peritoneum: set of equal petals;
e) calyx: set of sepals; androecium: male reproductive system; gynoecium: female reproductive system.
4) (UFLA) Angiosperms, such as orange, bean and cashew trees, have seeds contained in the fruits and constitute the group of plants with the highest number of species. Below are four propositions regarding the fertilization of angiosperms:
I – It is independent of water.
II – Double fertilization.
III – Endosperm is derived from the union of the gametic nucleus with two polar nuclei.
IV – Diploid endosperm.
Tick the correct alternative:
a) Only propositions II and III are correct.
b) Only propositions I, III and IV are correct.
c) Only propositions II, III and IV are correct.
d) Only propositions I, II and III are correct.
5) (UFRGS) In the evolutionary process of Angiosperms, several events related to reproduction occurred. Tick the correct statement regarding these events.
a) Insects visit the flowers to feed on the carpels, which favors fertilization.
b) The birds that feed on fleshy fruits are the main agents of pollination of these species.
c) Long stamens favor fruit dispersal by wind and insects.
d) The dispersion of fruits by water was an achievement of the most evolved angiosperms.
e) The interaction between plants, pollinators and seed dispersers is mostly mutualistic.
6) (FUVEST) The endosperm of the seed of angiosperms contains:
a) genetic material from each parent in equal amounts.
b) only maternal genetic material.
c) paternal genetic material only.
d) greater amount of maternal genetic material.
e) greater amount of paternal genetic material.
7) (UTFPR) Regarding sugarcane, widely used in the production of sugar, alcoholic beverages and ethanol (biofuel), we can state that:
a) has a tuber-like root, full of nutritional reserves.
b) is a gymnosperm, as it does not have flowers or seeds.
c) the sugar accumulated in the leaves is produced through chemosynthesis, a synthesis process without the need for light.
d) it is a monocotyledon with a full-culm stem, where it accumulates nutritional material.
e) is a dicotyledonous plant, has an axial and tuberous root.
8) Fruits are considered important evolutionary acquisitions of angiosperms. Regarding them, consider the following alternatives:
i. Pseudofruits are types of fruit that develop from parts of the flower other than the ovary.
II. We call dehiscent dried fruits those that open spontaneously when ripe, such as cotton, Brazil nuts, sapucaia, beans, peas, among many others.
III. All fleshy fruits have only free seeds in their pericarp, such as eggplant, watermelon, cucumber, grape, etc.
IV. Parthenocarpic fruits are those that originate after fertilization of the ovule.
v. Many fruits have adapted throughout their evolution and today have characteristics that help in the dissemination of their seeds, for example, some fruits and seeds present projections in the form of wings that facilitate their transport by the wind, others already have appendages that adhere to animal hair and feathers, among many others cases.
They are correct:
a) I, II, III, VI and V.
b) I, III and IV.
c) I, II and V.
d) V only.
e) IV and V.
9) (UFPB) During the evolutionary process of plants and animals, their interaction has been very important, especially for the reproduction of angiosperms. Regarding the two groups, it is correct to state that: (adapted)
a) Insects and angiosperms represent, respectively, the two most diverse groups among animals and plants.
b) angiosperms represent the only plant group that forms pollen tubes.
c) Insects have a body divided into a head and an abdomen.
d) insects have separate sexes and are viviparous animals.
e) angiosperms form, after double fertilization, a 3n embryo and a 2n endosperm.
10) Mark the incorrect alternative.
a) The life cycle of gymnosperms and angiosperms is very similar, but the reproductive organs of gymnosperms are the strobili, while in angiosperms they are the flowers.
b) Angiosperms are the only plants that bear fruit.
c) The flowers of angiosperms can be classified as complete and incomplete.
d) The process of self-fertilization is extremely important for angiosperms, because in this way they manage to maintain the same genetic combinations in their offspring, thus guaranteeing the existence of species.
e) The pollination of angiosperms can be anemophilous, entomophilous, ornithophilous and chiropterophilous.
1 — b
2 — the
3 — and
4 — d
5 — and
6 — d
7 — d
8 — c
9 — the
10 — d
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