Nutriţia Autotrofă

During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. Oxygen is released as a byproduct of this process and is essential for the survival of many organisms, including humans. Therefore, the correct answer is oxygen.

The pigmenţii asimilatori (assimilatory pigments) are responsible for transforming light energy into chemical energy. This process is known as photosynthesis, where pigments such as chlorophyll absorb light energy and convert it into chemical energy in the form of glucose. This chemical energy is then used by the plant for various metabolic processes. Therefore, the correct answer is "chimică" or "chimica" in Romanian, which means "chemical" in English.

Cloroplastele sunt sediul fotosintezei, deoarece aceste organele celulare conțin pigmenți fotosintetici, cum ar fi clorofila, care captează energia luminoasă și o transformă în energie chimică. Prin intermediul fotosintezei, cloroplastele convertește dioxidul de carbon și apa în glucoză și oxigen, proces esențial pentru producerea de hrană și oxigen în plante. Astfel, cloroplastele sunt locul în care are loc fotosinteza, procesul vital prin care plantele produc energia de care au nevoie pentru a supraviețui.

To carry out photosynthesis, a living organism needs to contain chloroplasts. Chloroplasts are the organelles found in plant cells that contain chlorophyll, the pigment responsible for capturing light energy. During photosynthesis, chloroplasts convert light energy into chemical energy, which is used to synthesize organic compounds such as glucose. Therefore, the presence of chloroplasts is essential for an organism to perform photosynthesis.

Fotosinteza este un proces prin care plantele și alte organisme autotrofe produc substanțe organice folosind energie solară. Aceasta se desfășoară în cloroplaste, nu în leucoplaste. Prin urmare, răspunsul corect este că fotosinteza este un tip de nutriție autotrofă, deoarece organismele care o realizează sunt capabile să producă propriile lor substanțe organice din substanțe anorganice, precum dioxidul de carbon și apa, folosind energia solară.

The statement is true because photosynthesis is indeed a process in which organic substances are synthesized from inorganic substances. During photosynthesis, plants use sunlight, carbon dioxide, and water to produce glucose and oxygen. This process occurs in the chloroplasts of plant cells and is essential for the production of food and oxygen in the ecosystem.

The given statement is false. Photosynthesis is actually a process of synthesis of organic substances from inorganic substances, not the other way around. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. This process is essential for the survival of plants and other organisms that rely on them for food and oxygen.

Algele unicelulare sunt capabile să realizeze nutriție autotrofă prin fotosinteză. Aceste organisme sunt eucariote și pot fi găsite în mediul acvatic, precum mări, oceane, lacuri sau bălți. Ele conțin pigmenți fotosintetici, precum clorofila, care le permite să convertească energia solară în energie chimică, prin procesul de fotosinteză. Astfel, algele unicelulare pot produce propriul lor aliment, utilizând dioxidul de carbon și lumina solară.

Autotrophic nutrition refers to the process by which organisms, in this case, plants, are able to produce their own food through photosynthesis. Photosynthesis is a biochemical process in which plants use sunlight, carbon dioxide, and water to synthesize organic compounds such as glucose. This process allows plants to convert inorganic substances into organic substances, providing them with the necessary nutrients and energy for growth and development.

The given statement is true. The dark phase of photosynthesis occurs in the stroma of chloroplasts and involves the synthesis of organic substances from carbon dioxide and the hydrogen produced from photolysis. This process is also known as the Calvin cycle or the light-independent reactions of photosynthesis. During this phase, energy from ATP and NADPH, which are produced in the light-dependent reactions, is used to convert carbon dioxide into glucose and other organic molecules.

Under the influence of light, the chlorophyll molecule releases an electron.

Castravetele realizează fotosinteză deoarece are cloroplaste în celulele sale, care conțin clorofilă. Clorofila este pigmentul responsabil de captarea energiei luminoase și transformarea acesteia în energie chimică, prin intermediul procesului de fotosinteză. Acest proces implică absorbția luminii solare, utilizarea acestei energii pentru a converti dioxidul de carbon și apa în glucoză și oxigen. Castravetele, fiind o plantă verde, are capacitatea de a realiza acest proces metabolic esențial pentru creșterea și dezvoltarea sa.

Faza de întuneric este numită aşa nu pentru că necesită întuneric, ci pentru că nu mai necesită lumină.

Faza de întuneric a fotosintezei are loc în stroma cloroplastelor.

The correct answer is "dioxid de carbon, apă și săruri minerale". This is because in the general chemical equation of photosynthesis, carbon dioxide (dioxid de carbon) and water (apă) are the reactants that are used by plants to produce glucose and oxygen. Additionally, plants also require certain inorganic nutrients (săruri minerale) such as nitrogen, phosphorus, and potassium for their growth and development. Therefore, the correct answer includes all the necessary reactants for photosynthesis.

In the general chemical equation of photosynthesis, water is a reactant. This means that water is one of the substances that is used up during the process of photosynthesis to produce glucose and oxygen.

Faza de lumină a fotosintezei are loc în grana cloroplastelor.

The correct answer is "se desfăşoară în grana cloroplastului." This is because the process of fotoliza apei, or water photolysis, occurs in the thylakoid membranes of the chloroplasts, which are stacked into structures called grana. In this process, water molecules are split into oxygen, protons, and electrons, which are then used in the light-dependent reactions of photosynthesis to produce energy-rich molecules like ATP and NADPH. Therefore, the correct answer is that fotoliza apei takes place in the grana of the chloroplast.

Plantele produc oxigen prin fotosinteză, un proces prin care energia solară este utilizată pentru a converti dioxidul de carbon și apa în glucoză și oxigen. Apa este unul dintre principalii compuși necesari pentru fotosinteză, fiind descompusă în timpul procesului, iar oxigenul este eliberat în atmosferă. Astfel, oxigenul produs de plante prin fotosinteză rezultă din apa utilizată în acest proces.

The correct answer is "substanţe organice şi oxigen." In the general equation of photosynthesis, organic substances and oxygen are the products of the reaction. Photosynthesis is the process by which plants convert carbon dioxide and water into glucose (an organic substance) and oxygen. This process occurs in the chloroplasts of plant cells, where sunlight is used as an energy source to drive the reaction. Therefore, the correct answer includes the products formed during photosynthesis.

The correct answer is "clorofila a şi clorofila b." This answer is correct because it states that the chlorophyll pigments are both chlorophyll a and chlorophyll b.

The process of photosynthesis is the conversion of carbon dioxide and water into glucose and oxygen, using sunlight as the source of energy. The question asks for the method that does NOT highlight a part of this process. The correct answer, "evidenţierea substanţelor organice consumate" (highlighting the organic substances consumed), is not a way to showcase photosynthesis because it focuses on the organic compounds being used up rather than the products or inputs of the process.

Autotrophic nutrition refers to the ability of an organism to synthesize its own food from inorganic substances. In this case, the correct answer states that autotrophic nutrition is carried out by chemosynthetic bacteria. Chemosynthetic bacteria are able to obtain energy by oxidizing inorganic compounds, such as sulfur or ammonia, and use this energy to synthesize organic molecules. This process is different from photosynthesis, which is carried out by plants and some other organisms using sunlight as the energy source. Therefore, the correct answer is that autotrophic nutrition is performed by chemosynthetic bacteria.

Faza de lumină constă în descompunerea fotochimică a apei (fotoliza) cu eliberarea oxigenului rezultat.

The correct answer is "carotina si xantofila,carotina şi xantofila". This answer suggests that the yellow pigments (carotenoids) are both carotene and xanthophyll. Carotene and xanthophyll are two types of carotenoids that are responsible for the yellow color in various plants and organisms. Carotene is a type of orange pigment, while xanthophyll is a type of yellow pigment. Therefore, the correct answer implies that both carotene and xanthophyll contribute to the yellow pigmentation.