Latihan Unbk Biologi 2017 Paket 2

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Based on the given information, the correct answer is "metafase". The explanation for this is that the image shows the phase of cell division where the chromosomes are aligned at the center of the cell. This phase is known as metaphase.

The correct answer suggests that planting trees along every road can help mitigate air pollution caused by the increasing volume of vehicles in big cities. Trees are known to absorb carbon dioxide and release oxygen, which can help improve air quality. By planting trees along the roads, they can act as a natural filter, reducing the amount of pollutants in the air. This solution is practical and can be implemented in urban areas to combat air pollution effectively.

Organ X is responsible for digesting food mechanically, which means breaking down food into smaller pieces through physical movements such as chewing and grinding. Organ Y is responsible for digesting food both mechanically and chemically, indicating that it not only breaks down food physically but also releases enzymes to chemically break down food components. Additionally, organ Y is also involved in the process of food decomposition. Therefore, the correct answer is "Mencerna makanan secara mekanik dan kimiawi, tempat pembusukkan makanan."

Based on the given table of urine sample test results, it can be concluded that Haslinda is suffering from diabetes mellitus.

If the population of rabbits increases, it will result in a decrease in the population of grass. This is because rabbits are herbivores and rely on grass as their primary food source. As the rabbit population grows, they will consume more grass, leading to a decline in the available grass for other organisms in the ecosystem. This decrease in grass availability can have a cascading effect on other populations, such as insects that rely on grass for food or birds that rely on insects for food.

The correct sequence of the steps in protein synthesis is 3, 1, 2, 4, and 5. First, RNA leaves the nucleus and goes to the ribosome. Then, RNA binds to the corresponding amino acids. Next, RNA is formed inside the nucleus by DNA. After that, the amino acids are arranged according to the genetic code. Finally, the protein is formed as instructed.

The correct answer is "Trombokinase, mengubah protombin menjadi thrombin." In the process of blood clotting, thrombokinase is an enzyme that converts prothrombin into thrombin. Thrombin is then responsible for converting fibrinogen into fibrin, which forms a mesh-like structure to create a blood clot. Therefore, option 1 is the correct answer as it accurately identifies the name and function of the numbered part in the given mechanism of blood clotting.

The reason for spraying different amounts of water is to provide different levels of humidity. By spraying 1 bottle of water on the first group of plants and 3 bottles on the second group, the experimenters are manipulating the humidity levels around the plants. This allows them to observe how different levels of humidity affect the growth of green beans. By comparing the growth of the two groups, they can determine whether humidity has an influence on the growth of the plants.

The correct answer is Ciliata because the image shown represents a type of protozoa that belongs to the Ciliata group. Ciliates are characterized by the presence of cilia, which are hair-like structures used for movement and feeding. They are typically found in aquatic environments and exhibit complex cellular structures.

Based on the given graph, it can be concluded that the enzyme pepsin works best at acidic pH, while the enzyme amylase works best at neutral pH. This is because the graph shows that the average reaction rate for pepsin is highest at acidic pH levels, while the average reaction rate for amylase is highest at neutral pH levels. This indicates that the activity of these enzymes is influenced by the pH of the environment they are in.

The correct answer is Xilem, mengangkut air dan garam dari tanah ke daun. Xylem is a tissue in plants that is responsible for transporting water and minerals from the roots to the leaves. It forms a network of tubes that allow for the upward movement of water and nutrients. This process is essential for the plant's survival as it provides the necessary resources for photosynthesis and other metabolic processes.

The correct answer is "Fleksi dan ekstensi" (Flexion and extension). This is because flexion refers to the movement that decreases the angle between two body parts, while extension refers to the movement that increases the angle between two body parts. In the given image, both joint A and B are capable of performing these movements.

The organelle labeled X in the given image is the mitochondria, which is responsible for cellular respiration. Cellular respiration is the process by which cells convert glucose and oxygen into energy in the form of ATP. The mitochondria have an inner membrane that contains enzymes involved in the production of ATP through aerobic respiration. Therefore, the correct answer is "tempat respirasi sel" (the place of cellular respiration).

The correct answer is 1), 2), dan 3). This means that the types of interactions that only benefit one organism are present in options 1, 2, and 3. However, without the complete question, it is not possible to determine the specific types of interactions being referred to.

The correct answer is "adanya CO2 sebagai hasil fermentasi masuk ke tabung B." This is because the change in color from pink to clear in tube B indicates the presence of carbon dioxide (CO2), which is a byproduct of alcohol fermentation. The reaction between CO2 and water in tube B forms carbonic acid, causing the phenolphthalein indicator to change from pink (alkaline) to clear (acidic). This confirms that fermentation has occurred in tube A, producing CO2 that has entered tube B.

Based on the given image, it can be observed that the front limbs of animals 1 and 2 have similar structures but serve different functions. This indicates that they are examples of both homology and analogy. Homology refers to the similarity in structure due to common ancestry, while analogy refers to the similarity in function due to similar environmental pressures. Therefore, the correct answer is "Homologi dan analogi."

The correct answer is MMtt >

Antibiotik (antibiotics) and Biogas are products of conventional biotechnology. Antibodi monoklonal (monoclonal antibodies), Domba hasil kloning (cloned sheep), and Organisme transgenik (transgenic organisms) are products of modern biotechnology. Therefore, the correct answer is 1, 3, 5.

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Based on the given plant image, the diversity present in the plants can be classified as species diversity. This is because species diversity refers to the variety of different species within a particular area or ecosystem. In the image, there are multiple different plants, each belonging to a different species, indicating species diversity.

The correct answer is osmosis. Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. In the given image, it is likely that there is a difference in solute concentration on either side of the membrane, causing water molecules to move from one side to the other through osmosis.

Based on the given table, the independent variable is the "kadar giberelin" (level of gibberellin) and the dependent variable is the "tinggi tanaman" (plant height). The independent variable is the one that is manipulated or changed by the researcher, which in this case is the level of gibberellin. The dependent variable is the one that is measured or observed as a result of the changes in the independent variable, which in this case is the plant height. Therefore, the correct answer is "variabel bebas kadar giberelin, variabel terikat tinggi tanaman" (independent variable is the level of gibberellin, dependent variable is plant height).

From the given information, we know that the man is normal and his wife is also normal, but her father is color blind. Color blindness is a recessive trait that is carried on the X chromosome. Since the woman's father is color blind, it means that she carries one copy of the color blindness gene. The man does not carry the color blindness gene. When they have children, there is a 50% chance that the woman will pass on her copy of the color blindness gene to each of her children. Therefore, there is a 25% chance that each child will be color blind (25% buta warna) and a 75% chance that each child will be normal (75% normal).

The correct answer is B. Unfortunately, without the provided options or additional information about the network of animal tissues and their functions, it is not possible to generate an explanation.

The correct answer states that during stage 1 of oogenesis, the primary oocyte undergoes meiosis 1 to form a secondary oocyte and a polar body, both with haploid chromosomes. This is the correct explanation as it accurately describes the process of oogenesis, where the primary oocyte goes through meiosis 1 to produce a secondary oocyte and a polar body, which contains half the number of chromosomes.

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The correct answer suggests that the second generation of black marmots is heterozygous. This means that they carry both the dominant and recessive alleles for black and albino traits. This is supported by the fact that when a black marmot with an albino parent is crossed with a black marmot, 9 black and 3 albino offspring are produced. This indicates that the black marmot parent carries both the dominant allele for black and the recessive allele for albino, resulting in a mixture of black and albino offspring in the second generation.

When the genotype of the first plant is TtUU and it is crossed with a heterozygous plant TtUu, the possible genotypes of the offspring are TtUU, TtUu, TtuU, and Ttuu. The question asks for the number of offspring that will have the phenotype of short stem and flowers at the top. The only genotype that will produce this phenotype is Ttuu. Since the genotype Ttuu is only possible in one out of the four possible genotypes, the number of offspring that will have this phenotype is 1 out of 4, which is equal to 120 out of 480. Therefore, the correct answer is 120.

Based on Francesco Redi's experiment, it can be concluded that living organisms come from other living organisms. This is because in the experiment, when the jar was tightly closed, no larvae were found, indicating that the presence of living organisms was prevented. However, when the jar was left open, many larvae were found, suggesting that living organisms were able to enter and reproduce. Additionally, when the jar was covered with gauze, only a few larvae were found, indicating that the gauze acted as a barrier, limiting the entry and reproduction of living organisms. Therefore, the correct answer is "Makhluk hidup berasal dari makhluk hidup" (Living organisms come from other living organisms).

The correct answer is Tumbuhan. In a food chain, energy flows from producers (plants) to consumers (animals). Plants are able to capture sunlight and convert it into chemical energy through photosynthesis. As a result, they have the highest energy level in the food chain. Elang, Rubah, Laba-laba, and Kelinci are all consumers and obtain their energy by consuming other organisms.

The correct answer is 6.400 dan 3.200. The question states that in a population of 10,000 people, 4% are albino. This means that 4% of the population are homozygous for the albino trait. Since homozygous individuals have two copies of the same allele, the number of homozygous individuals would be 4% of 10,000, which is 400. The remaining 3,200 individuals would be heterozygous, meaning they have one copy of the albino allele and one copy of the normal allele. Therefore, the ratio of homozygous to heterozygous individuals is 400:3,200, which simplifies to 1:8 or 6,400:3,200.

The given question describes a cross between a gray, long-winged male fruit fly and a black, short-winged female fruit fly. The F1 generation consists of all gray, long-winged fruit flies. If the F1 generation undergoes a test cross, the expected offspring genotypes would be AaPp, Aapp, aaPp, and aapp. However, the genotype AAPP is not expected in the offspring. Therefore, the correct answer is AAPP.

Based on the given image of the mutation, it appears that there is an additional segment of genetic material inserted into the original sequence. This type of mutation is known as "insertion."

The correct answer is (1), (2), and (3). This is because in the given statements, Darwin's main points about the theory of evolution are mentioned. Statement (1) states that there are no identical individuals on Earth, which supports the idea of variation within a population. Statement (2) suggests that populations tend to increase in size, which is a fundamental concept in Darwin's theory. Statement (3) highlights the need for food and space during reproduction, which relates to the struggle for existence and natural selection. Therefore, all three statements align with Darwin's theory of evolution.

The given question describes a cross between two types of chickens, one with rose comb (Rrpp) and the other with walnut comb (RrPp). The cross results in four different variants of chickens with different comb types. The percentage of walnut comb phenotype and rose comb phenotype is 37.5% each. This means that out of the four possible combinations of alleles, two of them will result in the walnut comb phenotype and the other two will result in the rose comb phenotype.

The correct answer is XbY, XBXb, XbY. This is because in the given genotype, the first individual has a sex chromosome combination of XbY, the second individual has a sex chromosome combination of XBXb, and the third individual has a sex chromosome combination of XbY.

The correct answer is (1) dan (4). The statement (1) suggests that giraffes with long necks originated from giraffes with short necks, indicating a change in the neck length over time. The statement (4) implies that giraffes with short necks died out while those with long necks survived, further supporting the idea of evolution and natural selection. Both statements align with Darwin's theory of evolution, making (1) dan (4) the correct answer.

The given question involves a cross between wheat plants with black husk (HHkk) and wheat plants with yellow husk (hhKK). All the offspring from this cross have black husk, indicating that the black husk trait is dominant over the yellow husk trait. When wheat plants with black husk (HhKk) are crossed with wheat plants with yellow husk (hhKk), the possible ratio of their offspring with black : yellow : white husk is 4 : 3 : 1. This is because the black husk trait is dominant over the yellow husk trait, but both traits are dominant over the white husk trait. Therefore, the correct answer is 4 : 3 : 1.

The given answer suggests that the phenotypic ratio obtained from the cross between the red-flowered Linaria marocana (Aabb) and the purple-flowered Linaria marocana (AaBb) is 60 ungu (purple), 60 putih (white), and 40 merah (red). This ratio is derived from the combination of alleles in the parent plants and follows Mendelian inheritance patterns.