Ţesuturile
Biologie clasa a X-a Alegeţi un singur răspuns corect:
Questions and Answers
- 1.
Ţesutul fundamental asimilator:
- A.
Asigură conducerea sevelor
- B.
Conţine celule cu cloroplaste
- C.
Este un ţesut embrionar
- D.
Se află în organele subterane ale unei plante
Correct Answer
B. Conţine celule cu cloroplasteExplanation
The correct answer is "conţine celule cu cloroplaste" which means "contains cells with chloroplasts" in English. This answer is supported by the fact that the fundamental assimilatory tissue is responsible for photosynthesis in plants. Chloroplasts are the organelles within plant cells that carry out photosynthesis, converting sunlight into energy. Therefore, the presence of cells with chloroplasts in the fundamental assimilatory tissue allows for the production of food for the plant through photosynthesis.Rate this question:
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- 2.
Următorul tip de ţesut se întâlneşte la plante:
- A.
Conjunctiv
- B.
Muscular
- C.
Secretor
- D.
Nervos
Correct Answer
C. SecretorExplanation
The correct answer is "secretor." The secretor tissue is found in plants and is responsible for the production and secretion of various substances such as nectar, resins, oils, and gums. This tissue plays an important role in plant defense mechanisms, attraction of pollinators, and protection against pathogens and herbivores.Rate this question:
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- 3.
Ţesutul cartilaginos este un ţesut:
- A.
Conjunctiv
- B.
Epitelial
- C.
Muscular
- D.
Nervos
Correct Answer
A. ConjunctivExplanation
The correct answer is "conjunctiv" because cartilage tissue is a type of connective tissue. Connective tissue provides support and structure to the body and is made up of cells and an extracellular matrix. Cartilage tissue is found in various parts of the body, such as the joints, ears, and nose, and it helps to cushion and protect these areas. It is composed of specialized cells called chondrocytes and a firm, flexible matrix made up of collagen fibers and proteoglycans.Rate this question:
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- 4.
Ţesutul osos este un ţesut:
- A.
Epitelial
- B.
Conjunctiv
- C.
Muscular
- D.
Nervos
Correct Answer
B. ConjunctivExplanation
The correct answer is "conjunctiv". Ţesutul osos refers to bone tissue, which is a type of connective tissue. It is characterized by its hard and rigid structure, composed of specialized cells called osteocytes embedded in a matrix of collagen fibers and mineral salts such as calcium and phosphate. Bone tissue provides support, protection, and facilitates movement in the body. Therefore, the correct answer is conjunctiv, which means connective in Romanian.Rate this question:
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- 5.
Sângele:
- A.
Face parte din ţesuturile de apărare
- B.
Este un tip de ţesut conjunctiv
- C.
Conţine 90% apă
- D.
Este o varietate de ţesut embrionar
Correct Answer
B. Este un tip de ţesut conjunctivExplanation
The correct answer is "este un tip de ţesut conjunctiv." This is because sângele (blood) is classified as a type of ţesut conjunctiv (connective tissue). Connective tissue is a type of tissue that provides support, protection, and structure to the body. Blood is composed of cells suspended in a liquid matrix called plasma, which is a characteristic feature of connective tissues. Therefore, blood can be categorized as a type of connective tissue.Rate this question:
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- 6.
Ţesutul alcătuit din neuroni şi celule gliale (nevroglii) se numeşte:
- A.
Cartilaginos
- B.
Muscular
- C.
Nervos
- D.
Osos spongios
Correct Answer
C. NervosExplanation
The correct answer is "nervos." This is because the tissue composed of neurons and glial cells (neuroglia) is called nervous tissue.Rate this question:
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- 7.
Celulele gliale:
- A.
Sunt anucleate
- B.
Generează impulsurile nervoase
- C.
Sintetizează mielina
- D.
Sunt hrănite de către neuroni
Correct Answer
C. Sintetizează mielinaExplanation
The correct answer is "sintetizează mielina" (synthesize myelin). Glial cells are a type of non-neuronal cells found in the central nervous system. One of their main functions is to support and protect neurons. They do this by producing myelin, a fatty substance that forms a protective sheath around nerve fibers. This myelin sheath helps to insulate and speed up the transmission of electrical impulses along the neurons. Therefore, the statement that glial cells synthesize myelin is accurate.Rate this question:
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- 8.
Caracteristică a celulelor ţesuturilor embrionare vegetale este:
- A.
Prezenţa a numeroase cloroplaste
- B.
Capacitatea de a produce nectar
- C.
Capacitatea de a se divide rapid
- D.
Prezenţa unor pereţi celulari îngroşaţi
Correct Answer
C. Capacitatea de a se divide rapidExplanation
The correct answer is "capacitatea de a se divide rapid" which means the ability to divide rapidly. This characteristic is specific to embryonic plant tissues as they undergo rapid cell division to support growth and development. This process allows the plant to form new tissues and organs, contributing to its overall growth and adaptability.Rate this question:
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- 9.
Meristemele apicale:
- A.
Au rol de apărare
- B.
Sunt ţesuturi fundamentale
- C.
Conţin celule care se divid meiotic
- D.
Sunt localizate în vârful de creştere
Correct Answer
D. Sunt localizate în vârful de creştereExplanation
The correct answer is "sunt localizate în vârful de creştere" which translates to "are located at the growth tip." This means that meristematic apical tissues are found at the tip of the plant where growth occurs. These tissues are responsible for the primary growth of the plant, producing new cells that allow for elongation and development of the plant's shoots and roots.Rate this question:
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- 10.
Neuronii:
- A.
Prezintă centrozom
- B.
Au rol în nutriţia celulelor gliale
- C.
Sunt mai numeroşi decât celulele gliale
- D.
Au corp celular şi prelungiri
Correct Answer
D. Au corp celular şi prelungiriExplanation
The given answer states that neurons have a cell body and extensions. This is correct because neurons are specialized cells that transmit and process information in the nervous system. They have a distinct cell body, which contains the nucleus and other organelles necessary for cellular functions. Neurons also have extensions called dendrites, which receive signals from other neurons, and an axon, which transmits signals to other cells. Therefore, the answer accurately describes the structural characteristics of neurons.Rate this question:
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- 11.
Din categoria ţesuturilor vegetale fundamentale fac parte ţesuturile:
- A.
Secretoare
- B.
De depozitare
- C.
Conducătoare
- D.
De apărare
Correct Answer
B. De depozitareExplanation
The correct answer is "de depozitare" (storage tissues). In plants, storage tissues are responsible for storing nutrients such as starch, proteins, and oils. These tissues can be found in various parts of the plant, such as roots, stems, and leaves, and they provide a reserve of nutrients that can be used during times of growth or when resources are scarce. This allows the plant to survive and thrive in different environmental conditions.Rate this question:
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- 12.
Din categoria ţesuturilor embrionare primare fac parte ţesuturile:
- A.
Secretoare
- B.
Apicale
- C.
Conducătoare
- D.
De apărare
Correct Answer
B. ApicaleExplanation
The correct answer is "apicale". The question is asking about the primary embryonic tissues and the answer "apicale" refers to the apical tissues. Apical tissues are located at the tip or apex of a structure, such as the growing tip of a plant or the apex of an embryo. These tissues are responsible for growth and development and play a crucial role in the formation of various organs and structures in the embryo.Rate this question:
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- 13.
Din categoria ţesuturilor embrionare primare fac parte ţesuturile:
- A.
Mecanice
- B.
Intercalare
- C.
Conducătoare
- D.
Secretoare
Correct Answer
B. IntercalareExplanation
The correct answer is "intercalare". Intercalare refers to the primary embryonic tissues that are involved in communication and coordination between different tissues and organs. These tissues play a crucial role in the development and functioning of the organism.Rate this question:
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- 14.
Din categoria ţesuturilor embrionare secundare fac parte ţesuturile:
- A.
Secretoare
- B.
Laterale
- C.
Mecanice
- D.
Fundamentale
Correct Answer
B. LateraleExplanation
The correct answer is "laterale" because in the given options, "laterale" is the only term that refers to a specific type of embryonic tissue. The other options, "secretoare," "mecanice," and "fundamentale," are more general terms that do not specifically describe embryonic tissues. Therefore, "laterale" is the most appropriate answer in this context.Rate this question:
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- 15.
Alegeţi asocierea corectă între ţesut şi funcţia acestuia:
- A.
Meristem apical – creştere în lungime
- B.
Vase lemnoase – conducerea sevei elaborate
- C.
Vase liberiene – conducerea sevei brute
- D.
Epidermă - susţinere
Correct Answer
A. Meristem apical – creştere în lungimeExplanation
The correct answer is meristem apical - creştere în lungime. Meristem apical is a type of tissue found at the tips of roots and shoots in plants. It is responsible for the primary growth of the plant, which includes the increase in length of the plant body. This tissue is actively dividing and producing new cells, which then differentiate into various types of tissues, contributing to the overall growth of the plant. Therefore, the association between meristem apical and creştere în lungime (growth in length) is appropriate.Rate this question:
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- 16.
Alegeţi asocierea corectă între ţesut şi funcţia acestuia:
- A.
Meristem apical – creştere în grosime
- B.
Vase lemnoase – conducerea sevei elaborate
- C.
Vase liberiene – conducerea sevei brute
- D.
Epidermă - de apărare
Correct Answer
D. Epidermă - de apărareExplanation
The correct answer is "epidermă - de apărare" because the epidermis is the outermost layer of cells in plants and serves as a protective barrier against pathogens, pests, and environmental stresses. It contains specialized cells, such as trichomes and cuticles, that help defend the plant against herbivores and prevent water loss.Rate this question:
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- 17.
Alegeţi asocierea corectă între ţesut şi funcţia acestuia:
- A.
Vase lemnoase – conducerea sevei brute
- B.
Meristem apical - crestere în grosime
- C.
Meristem lateral - creştere în lungime
- D.
Mecanic - secretă răşini
Correct Answer
A. Vase lemnoase – conducerea sevei bruteExplanation
Vasele lemnoase sunt responsabile de conducerea sevei brute în plante. Acestea sunt tuburi specializate care transportă apa și substanțele nutritive de la rădăcină la frunze și alte părți ale plantei. Seva brută conține apa și mineralele absorbite de rădăcină și este transportată către părțile superioare ale plantei prin vasele lemnoase.Rate this question:
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- 18.
Ţesutul osos compact:
- A.
Se află la periferia oaselor late şi scurte
- B.
Este un ţesut conjunctiv semidur
- C.
Este lipsit de vascularizaţie
- D.
Conţine substanţă fundamentală fluidă
Correct Answer
A. Se află la periferia oaselor late şi scurteExplanation
The correct answer is "se află la periferia oaselor late şi scurte" which means "it is located at the periphery of long and short bones." This is a characteristic of compact bone tissue, as it forms the outer layer of bones and provides strength and support.Rate this question:
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- 19.
Vasele liberiene ale plantelor:
- A.
Aparţin ţesuturilor fundamentale
- B.
Conduc apă cu substanţe organice
- C.
Sunt formate din parenchim asimilator
- D.
Lipsesc din organele gimnospermelor
Correct Answer
B. Conduc apă cu substanţe organiceExplanation
The correct answer is "conduc apă cu substanţe organice." This means that the vascular bundles of plants conduct water with organic substances. This is an important function of the vascular system in plants, as it allows for the transport of water and nutrients throughout the plant. The other statements in the question are not relevant to the explanation of the correct answer.Rate this question:
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- 20.
Vasele lemnoase ale plantelor:
- A.
Aparţin ţesuturilor de apărare
- B.
Conduc apă cu substanţe minerale
- C.
Sunt reprezentate de tuburile ciuruite
- D.
Lipsesc din organele gimnospermelor
Correct Answer
B. Conduc apă cu substanţe mineraleExplanation
The correct answer is "conduc apă cu substanţe minerale" which translates to "they conduct water with mineral substances." This answer is supported by the fact that "vasele lemnoase" refers to the xylem tissue in plants, which is responsible for the transport of water and minerals from the roots to the rest of the plant. Therefore, this answer accurately describes the function of xylem tissue in plants.Rate this question:
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- 21.
Ţesuturile animale:
- A.
Sunt formate din celule nediferenţiate
- B.
Provin din zigot prin diferenţiere celulară
- C.
Funcţionează independent
- D.
Se formează din zigot prin diviziuni meiotice succesive
Correct Answer
B. Provin din zigot prin diferenţiere celularăExplanation
The correct answer is "provin din zigot prin diferenţiere celulară." This means that animal tissues are formed from a single cell called a zygote, which undergoes cellular differentiation to give rise to different types of tissues in the body. This process allows the zygote to specialize and develop into various types of cells with specific functions, ultimately forming the different tissues found in animals.Rate this question:
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- 22.
Ţesuturilor vegetale fundamentale sunt:
- A.
Mecanice
- B.
Asimilatoare
- C.
Conducătoare
- D.
Secretoare
Correct Answer
B. AsimilatoareExplanation
The correct answer is "asimilatoare" because the fundamental plant tissues are responsible for photosynthesis and nutrient absorption. These tissues contain chloroplasts and are involved in the production and storage of food for the plant. They are essential for the plant's growth and development.Rate this question:
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