Domanda del libro di testo
Draw and label the parts of a flower.
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Ch. 38 - Angiosperm Reproduction and Biotechnology
Urry12th EditionCampbell BiologyISBN: 9785794169850
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TOC.tableOfContents
- Ch. 1 - Evolution, the Themes of Biology, and Scientific Inquiry8
- Ch. 2 - The Chemical Context of Life8
- Ch. 3 - Water and Life6
- Ch. 4 - Carbon and the Molecular Diversity of Life9
- Ch. 5 - The Structure and Function of Large Biological Molecules9
- Ch. 6 - A Tour of the Cell6
- Ch. 7 - Membrane Structure and Function6
- Ch. 8 - An Introduction to Metabolism6
- Ch. 9 - Cellular Respiration and Fermentation10
- Ch. 10 - Photosynthesis7
- Ch. 11 - Cell Communication7
- Ch. 12 - The Cell Cycle11
- Ch. 13 - Meiosis and Sexual Life Cycles10
- Ch. 14 - Mendel and the Gene Idea14
- Ch, 15 - The Chromosomal Basis of Inheritance6
- Ch. 16 - The Molecular Basis of Inheritance9
- Ch. 17 - Gene Expression: From Gene to Protein9
- Ch. 18 - Regulation of Gene Expression10
- Ch. 19 - Viruses6
- Ch. 20 - DNA Tools and Biotechnology7
- Ch. 21 - Genomes and Their Evolution8
- Ch. 22 - Descent with Modification: A Darwininan View of Life6
- Ch. 23 - The Evolution of Populations5
- Ch. 24 - The Origin of Species6
- Ch. 25 - The History of Life on Earth8
- Ch. 26 - Phylogeny and the Tree of Life8
- Ch. 27 - Bacteria and Archaea6
- Ch. 28 - Protists7
- Ch. 29 - Plant Diversity I: How Plants Colonized Land7
- Ch. 30 - Plant Diversity II: The Evolution of Seed Plants6
- Ch. 31 - Fungi5
- Ch. 32 - An Overview of Animal Diversity4
- Ch. 33 - An introduction to Invertebrates6
- Ch. 34 - The Origin and Evolution of Vertebrates7
- Ch. 35 - Vascular Plant Structure, Growth, and Development10
- Ch. 36 - Resource Acquisition and Transport in Vascular Plants8
- Ch. 37 - Soil and Plant Nutrition11
- Ch. 38 - Angiosperm Reproduction and Biotechnology8
- Ch. 39 - Plant Responses to Internal and External Signals8
- Ch. 40 - Basic Principles of Animal Form and Function8
- Ch. 41 - Animal Nutrition7
- Ch. 42 - Circulation and Gas Exchange7
- Ch. 43 - The Immune System5
- Ch. 44 - Osmoregulation and Excretion6
- Ch. 45 - Hormones and the Endocrine System8
- Ch. 46 - Animal Reproduction9
- Ch. 47 - Animal Development8
- Ch. 48 - Neurons, Synapses, and Signaling6
- Ch. 49 - Nervous Systems8
- Ch. 50 - Sensory and Motor Mechanisms5
- Ch. 51 Animal Behavior6
- Ch. 52 - An Introduction to Ecology and the Biosphere7
- Ch. 53 - Population Ecology9
- Ch. 54 - Community Ecology9
- Ch. 55 - Ecosystems and Restoration Ecology8
- Ch. 56 - Conservation Biology and Global Change6
Capitolo 38, Problema 7
The black dots that cover strawberries are actually fruits formed from the separate carpels of a single flower. The fleshy and tasty portion of a strawberry derives from the receptacle of a flower with many separate carpels. Therefore, a strawberry is:
a. A simple fruit with many seeds
b. Both a multiple fruit and an accessory fruit
c. Both a simple fruit and an aggregate fruit
d. Both an aggregate fruit and an accessory fruit
Guida verificata passo dopo passo1
Understand the definition of an aggregate fruit: It is formed from a single flower with multiple carpels, each developing into a small fruit. The black dots on strawberries are the individual fruits from separate carpels, indicating an aggregate fruit.
Recognize the definition of an accessory fruit: It is a fruit where some of the flesh is derived not from the ovary but from some adjacent tissue exterior to the carpel. In strawberries, the fleshy part is derived from the receptacle, making it an accessory fruit.
Analyze the options: A simple fruit develops from a single carpel or several fused carpels, which does not apply to strawberries. A multiple fruit forms from a cluster of flowers, which also does not apply.
Eliminate incorrect options: Option a is incorrect because strawberries are not simple fruits. Option b is incorrect because strawberries are not multiple fruits. Option c is incorrect because strawberries are not simple fruits.
Conclude with the correct option: Based on the definitions and analysis, the correct answer is d, as strawberries are both aggregate fruits and accessory fruits.
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Aggregate Fruit
An aggregate fruit develops from a single flower that has multiple carpels, each forming a small fruitlet. These fruitlets cluster together to form the entire fruit. Strawberries are an example, where each black dot on the surface is an individual fruitlet, making the strawberry an aggregate fruit.
Video consigliato:
03:49
Fruit
Accessory Fruit
An accessory fruit is one where some of the flesh is derived not from the ovary but from some adjacent tissue exterior to the carpel. In strawberries, the fleshy part we eat is derived from the receptacle of the flower, not the ovaries, classifying it as an accessory fruit.
Video consigliato:
03:49Fruit
Carpel
A carpel is the female reproductive part of a flower, consisting of an ovary, a stigma, and usually a style. In strawberries, each carpel develops into a small individual fruit, which is why the surface of a strawberry is covered with tiny, seed-like structures, each representing a separate carpel's fruit.
Video consigliato:
03:49Fruit
Pratica correlata
Domanda del libro di testo
Which statement concerning grafting is correct?
a. Stocks and scions refer to twigs of different species.
b. Stocks and scions must come from unrelated species.
c. Stocks provide root systems for grafting.
d. Grafting creates new species.
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Domanda del libro di testo
In a species showing sporophytic incompatibility, which type(s) of pollen could successfully fertilize an S2 S3 flower?
a. S1 pollen from an S1 S3 flower
b. S2 or S3 pollen from an S2 S3 flower
c. S3 pollen from an S1 S1 flower
d. S1 pollen from an S1 S1 flower
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Domanda del libro di testo
Some plant species produce male and female individuals in which the males have an XY genotype and the females have an XX genotype. After double fertilization, what would be the genotypes of the embryos and endosperm nuclei?
a. Embryo XY/endosperm XXX or embryo XX/endosperm XXY
b. Embryo XX/endosperm XX or embryo XY/endosperm XY
c. Embryo XX/endosperm XXX or embryo XY/endosperm XYY
d. Embryo XX/endosperm XXX or embryo XY/endosperm XXY
1015
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