The section of the cell membrane illustrates one method of cellular transport. Consider steps A, B and C. What transport mechanism is represented by the model?

A. The kinetic energy of moving water is converted to electrical energy.

Answer:

Option (3).

Explanation:

Enzymes are the  bio catalyst that can increase the rate of a bio chemical reaction without themselves going under any change. Enzyme decreases the activation energy of the reaction and increases the rate of reaction.

Denaturation of protein results in the loss of biological activity of enzyme. The enzyme loses its shape and cannot catalyze the reactions as enzymes are shape specific.

Thus, the correct answer is option (3).

Denaturation of an enzyme results in the loss of its three-dimensional structure and its ability to catalyze reactions due to an irreversible change in shape caused by high temperatures.

When an enzyme becomes denatured, it loses its shape and is no longer able to catalyze chemical reactions. This is because the high temperature causes a disruption of the chemical bonds, such as hydrogen bonds, within the protein structure, leading to an irreversible change in the enzyme's three-dimensional shape. The correct explanation for what happens when an enzyme becomes denatured is that 'The enzyme loses its shape and is no longer able to catalyze chemical reactions'. It is not related to the enzyme absorbing heat, breaking into amino acids, or refolding to catalyze different reactions.

The germination of a starch seed involves the seed absorbing water, the emergence and growth of the radicle and shoot, expansion of cotyledons, and growth into a seedling, all supported by the metabolism of stored starch.

The sequence of events in the germination of a starch seed is a crucial biological process. Germation begins when a seed, which has been dormant, encounters favorable conditions such as moisture or the right temperature, which triggers the germination process. Seeds often require specific conditions to end dormancy, such as exposure to light, cold, or fire, or going through chemical treatments. The germination process itself typically involves several key steps.

The starch stored within the seed is metabolized by the embryo to provide the energy needed for these physical changes until the seedling can produce its own food via photosynthesis.

The right answer is d. sugar molecules move outside of the membrane.

The simple diffusion is the diffusion through the plasma membrane (in the direction of the strong concentrations towards the weak concentrations, until equilibrium concentrations on both sides of the membrane). In the case that we have, the most concentrated compartment in glucose (that is inside the cell) will let it escape and go to the extracellular compartments until reaching equal concentrations between the two compartments.

nucleotide consist of phosphate groups, five-carbon ribose sugar and nitrogenous bases (adenine, thymine (DNA only), uracil (RNA only), cytosine, guanine make nucleic acid

Nucleic acids are the primary center for storing all genetic information where deoxyribonucleic acid is the center for storing all the genetic information.

The genetic material is inheritable which can transfer from the parents to the children that means  from one generation to another.

for example the characters such as hair color, hair type, eye color are some of the genetic information carried  nucleic acids.

all the Nucleic acids are composed of nucleotide monomers linked together, consist of three parts such as  Nitrogenous bases include purine molecules (adenine and guanine) and pyrimidine molecules (cytosine, thymine, and uracil.)

In DNA, the five-carbon sugar is deoxyribose, while ribose is the pentose sugar in RNA.

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Answer:

Theodor Schwann

Explanation:

Glucose is used by plants to synthesize cellulose, the structural material in plant cell walls, which does not occur in animals as they cannot produce cellulose.

One use for glucose in plants that does not occur in animals is in the synthesis of cellulose, which is the structural material of a plant's cell walls. Animals, including humans, are unable to synthesize cellulose because they lack the necessary enzymes to form the beta-glycosidic linkages that characterize this polysaccharide. Cellulose gives plants their rigid structure, allowing them to stand upright and form the necessary frameworks for leaves, stems, and roots. In contrast, animals must obtain cellulose indirectly by eating plants or plant products, and most cannot digest it, using it mainly for fiber.

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to the equator

The expected outcome of crossing two tomato plants that are heterozygous for hairy stems is observing a phenotypic proportion of 3:1 plants (3 hair stem plants: 1 hairless stem plant).

Dominance in genetics is a phenomenon where the dominant alleles mask the recessive allele in heterozygous individuals.

In conclusion, the expected outcome of crossing two tomato plants that are heterozygous for hairy stems is observing a phenotypic proportion of 3:1 plants (3 hair stem plants: 1 hairless stem plants).

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Answer and explanation:

It is said that an ecosystem is balanced when there is a functional system that helps the prompt recovery of wildlife after some natural event of disastrous characteristics.

This means that it is necessary to have flora and fauna in good condition, with a food chain of predators and preys, that toxic gases have decreased or disappeared, among other issues. We will find a balanced ecosystem when the relationship between natural organisms and human beings is pleasant and harmonic enough and does not imply a risk to nature and its conservation.

During the winter you become sick with the flu. No. Each B cell is capable of recognizing one specific antigen.

White blood cells of a certain type that produce antibodies. B cells are produced by stem cells in the bone marrow and are a component of the immune system. as well known as B lymphocyte.

B cells influence antimicrobial defenses and tissue inflammation, contribute in T-cell activation by antigen presentation, costimulation, and cytokine release, and—most importantly—serve as regulatory cells.

The generation of antigen-specific immunoglobulin (Ig) targeted against invasive pathogens is mediated by B cells, which are at the center of the adaptive humoral immune system.

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Mitosis produces two genetically identical daughter cells from one parent cell. This cell division process involves multiple stages to ensure accurate genetic replication and distribution. The resulting two cells are vital for growth and repair in organisms.

Mitosis is a process of cell division that results in two genetically identical daughter cells from a single parent cell. During this process, the nucleus divides, ensuring that each daughter cell inherits an exact copy of the parent cell's chromosomes. Hence, in mitosis, you start with one cell and end up with two cells, each with a complete set of genetic material.

Stages of Mitosis

The process is divided into several stages: prophase, metaphase, anaphase, and telophase, followed by cytokinesis. By the end of telophase and cytokinesis, the original cell has divided into two identical cells.

These two newly formed cells are crucial for growth, healing, and various other functions in multicellular organisms. Each of these cells maintains the same number of chromosomes as the parent cell, ensuring genetic consistency.

Geologists use radioactive dating for determining the absolute ages of rocks and minerals using radioactive isotopes. So, option B is right.

Radioactive dating is a technique used to date rocks and minerals utilizing radioactive isotopes. Igneous and metamorphic rocks can benefit from this technique.

Age of rock can be determined using radioactive dating, which measures the decay of radioactive isotopes.

Option (A) is incorrect because radioactive dating is not used to identify but determine the age of rock.

Option (C) and (D) is incorrect because radioactive dating does not tell how radioactive substances is or used to collect evidence of fossil.

Therefore, the answer is (B).

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The correct answer is:

cork bark

Explanation:

The cell was first discovered and described by Robert Hooke in 1665. He mentioned that it looked especially like cells or little rooms which friars occupied, in this way limiting the name. Nevertheless what Hooke really recognized as the dead cell dividers of plant cells (cork) as it bestowed up under the magnifying lens.

Answer:

A). active growth and metabolism of the cell

Explanation:

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Pollination is the transfer of pollen from the male reproductive structures to the female of seed plants.

Pollination is the process of transferring pollen from the male reproductive structures to the female parts of seed plants, leading to fertilisation and seed production. It can occur via self-pollination or cross-pollination, the latter being particularly important for genetic diversity. There are two primary types of pollination: self-pollination and cross-pollination. Self-pollination occurs when pollen from an anther is deposited on the stigma of the same flower or another flower on the same plant. Cross-pollination involves the transfer of pollen from the anther of one flower to the stigma of another flower, usually on a different individual of the same species. Cross-pollination is vital for genetic diversity and is carried out by various agents, including insects, birds, bats, and the wind.

In angiosperms, or flowering plants, pollen is transferred from the anther to the stigma of the same or different flower. In gymnosperms, such as conifers, this involves the movement of pollen from a male cone to a location within the female cone. After pollination, in both angiosperms and gymnosperms, the pollen germinates to form a pollen tube, which eventually leads to fertilisation and seed production.