Soal Latihan Online Quiz #2

Hati merupakan organ ekskresi karena kemampuannya menetralisir dan membuang sampah Nitrogen hasil metabolisme protein berupa urea. Urea adalah senyawa yang dihasilkan oleh hati sebagai produk akhir dari pemecahan asam amino. Urea kemudian diekskresikan melalui ginjal dalam bentuk urine.

The correct answer is "bibit tanaman dengan jumlah banyak dan waktu yang singkat". This is because kultur jaringan, or tissue culture, is a biotechnology technique that allows for the rapid production of a large number of plantlets in a short period of time. This method involves taking small pieces of plant tissue and placing them in a nutrient-rich medium to stimulate their growth and development into complete plants. This process is highly efficient and can result in the production of a large quantity of healthy plantlets in a relatively short period, which is beneficial for improving agricultural productivity.

The correct answer is "Mengangkut garam dan mineral" because the X part in the cross-section of the dicotyledonous root is the vascular tissue, which includes the xylem and phloem. The xylem is responsible for transporting water and minerals from the roots to the rest of the plant. Therefore, the X part functions in transporting salts and minerals.

Lumut adalah jawaban yang tepat karena memiliki ciri-ciri yang sesuai dengan yang diberikan. Lumut hidup di tempat yang lembab seperti di hutan atau di tepi sungai. Permukaan tubuh lumut dilapisi lilin untuk melindungi dari kehilangan air. Lumut juga memiliki klorofil yang digunakan untuk fotosintesis. Selain itu, lumut merupakan tumbuhan yang tergolong dalam talophyta, yaitu tumbuhan yang tidak memiliki akar, batang, dan daun sejati seperti tumbuhan tingkat tinggi, namun memiliki talus yang berbentuk seperti daun.

The correct answer is "Bagaimanakah pengaruh pemberian tepung bekicot terhadap pertumbuhan lele dumbo ?" because it directly relates to Fahri's research topic and his intention to study the potential of using snail flour as an alternative feed for dumbo catfish. This question focuses on the potential impact of feeding snail flour to dumbo catfish and aligns with Fahri's objective of investigating the potential of snail as an alternative feed.

The correct answer is Elang dan laba - laba. In a food chain, organisms are organized into different trophic levels based on their position in the transfer of energy. The first trophic level consists of primary producers, such as plants, which convert sunlight into energy through photosynthesis. The second trophic level consists of herbivores that eat the primary producers. The third trophic level consists of carnivores that eat the herbivores. In this case, the elang (eagle) and laba - laba (spider) are both carnivores, so they belong to the third trophic level.

The correct answer is kecap. Kecap is a type of food product that is made using Aspergillus wentii. Aspergillus wentii is a type of mold that is commonly used in the fermentation process of making kecap. This mold helps to break down the ingredients and develop the unique flavor and aroma of kecap. Therefore, kecap is the correct answer as it is a food product that utilizes Aspergillus wentii in its production process.

The correct answer is "molusca" because the passage mentions that the observed animals have a soft body, which is a characteristic of mollusks. Mollusks are a phylum of invertebrate animals that include squids, clams, and snails. Therefore, "molusca" is the most suitable answer as it represents the phylum to which these animals belong.

The correct answer is 22A + X atau Y. This karyotype represents the chromosomal composition of human sperm cells. The "22A" indicates that there are 22 pairs of autosomes (non-sex chromosomes), while the "+ X atau Y" indicates that there is either an X or a Y sex chromosome present. This reflects the normal chromosomal makeup of sperm cells, which carry either an X or a Y chromosome, determining the sex of the offspring.

Both types of animals mentioned in the question have an exoskeleton, which is a hard outer covering that provides support and protection for their bodies. This similarity allows them to be grouped together.

The correct answer is "fiksasi, nitrifikasi, denitrifikasi". Fiksasi adalah proses di mana nitrogen gas diubah menjadi senyawa nitrogen yang dapat digunakan oleh tanaman. Nitrifikasi adalah proses di mana senyawa nitrogen diubah menjadi nitrat oleh bakteri nitrifikasi. Denitrifikasi adalah proses di mana nitrat diubah kembali menjadi nitrogen gas oleh bakteri denitrifikasi. Urutan ini sesuai dengan siklus nitrogen di alam, di mana nitrogen gas diubah menjadi senyawa yang dapat digunakan oleh tanaman, kemudian diubah menjadi nitrat, dan akhirnya kembali menjadi nitrogen gas.

The correct answer is Azolla pinnata (paku air) because it belongs to the same division as the plant in the picture. Without the picture, it is not possible to determine the division of the plant.

During the process of photosynthesis, green plants take in carbon dioxide from the atmosphere and convert it into glucose. Glucose is a type of sugar that serves as a source of energy for the plant. This energy is used for various metabolic processes and growth. Therefore, the correct answer is Glukosa.

The given correct answer is 2 and 4. This is because statement 2 mentions that the process occurs in the grana, which is a part of the chloroplast where the light-dependent reactions of photosynthesis take place. Statement 4 states that the process requires RuBp, which is a molecule involved in the Calvin cycle, also known as the light-independent reactions or the dark reactions of photosynthesis. Therefore, both statements 2 and 4 are related to the dark reactions of photosynthesis.

The correct answer is "memiliki tulang belakang". This is because having a backbone is a characteristic of animals belonging to the phylum Chordata.

In the given life cycle of coelenterates, the generative reproductive phase is carried out by structure number 1.

Transduksi adalah proses perpindahan materi genetik dari satu bakteri ke bakteri lain melalui perantara virus. Dalam proses ini, virus menginfeksi bakteri dan mengambil sebagian materi genetik dari bakteri tersebut. Ketika virus tersebut menginfeksi bakteri lain, materi genetik yang telah diambil tadi akan ditransfer ke bakteri baru. Oleh karena itu, transduksi merupakan bentuk reproduksi seksual pada bakteri dengan bantuan virus.

The correct answer is "Peningkatan suhu bumi" because an increase in CO2 levels in the atmosphere leads to the greenhouse effect, trapping heat and causing a rise in global temperatures. This increase in temperature can have various negative effects on the environment, such as melting ice caps, rising sea levels, and changes in weather patterns.

The utilization of satellite and technology for mapping the potential of an area and the development of agricultural/ plantation machines leads to the rapid and extensive opening of plantation lands such as palm oil, rubber, teak, and others. From a biological perspective, these factors will result in an increase in agricultural food products. This means that the correct answer is "Peningkatan produk pangan hasil perkebunan" (Increase in agricultural food products).

The correct answer is "Pospat – gula – adenine – sitosin". This is because the sequence of the DNA molecule is composed of a phosphate group (pospat), a sugar (gula), and the nitrogenous bases adenine and cytosine. The order of these components is important in determining the genetic information encoded in the DNA molecule.

The correct answer is "kerja enzim spesifik" because the image shows a diagram of an enzyme, which is a protein that acts as a catalyst to speed up chemical reactions. Enzymes have specific substrates that they bind to and act upon, which is what is depicted in the image. This specificity allows enzymes to carry out their functions effectively and efficiently.

The correct answer is Arteri pulmonalis dan aorta. This is because the image shows two blood vessels, one labeled G and the other labeled H. G is connected to the lungs, indicating that it is the pulmonary artery, which carries oxygen-depleted blood from the heart to the lungs for oxygenation. H is connected to the rest of the body, indicating that it is the aorta, which carries oxygen-rich blood from the heart to the rest of the body. Therefore, the correct answer is Arteri pulmonalis dan aorta.

Oksigen (O2) adalah akseptor terakhir yang berperan dalam fosforilasi oksidatif pada rantai transpor elektron. Setelah elektron melewati kompleks protein di dalam rantai transpor elektron, elektron terakhirnya diterima oleh oksigen. Oksigen menerima elektron dan proton untuk membentuk air (H2O). Reaksi ini penting karena menghasilkan energi yang digunakan untuk menghasilkan ATP dalam fosforilasi oksidatif.

The given answer states that the result of their marriage will be an equal number of male and female children. This is because the father has both X and Y gametes, while the mother only has X gametes. When fertilization occurs, there is an equal chance for the sperm to carry either the X or Y chromosome, and an equal chance for the egg to carry the X chromosome. Therefore, there is an equal probability for the offspring to inherit either XX (female) or XY (male) chromosomes, resulting in an equal number of male and female children.

The correct answer is 1 - 2 - 3 - 4 - 6 - 5 - 7. This is the correct sequence of the life cycle of Taenia solium, a tapeworm. The proglottids, which contain the eggs, are passed in the feces of an infected human. The eggs are then ingested by a pig, where they hatch into larvae called oncospheres. The oncospheres penetrate the pig's intestinal wall and migrate to various tissues, forming cysticerci. If a human consumes undercooked pork containing cysticerci, the larvae develop into adult tapeworms in the human intestine.

The correct answer is 1, 2, and 5. The given explanation states that deforestation and forest burning for settlement or agricultural land causes the loss of producers in the ecosystem. This loss of producers will affect the existence of abiotic components, which are indicated by numbers 1 (decrease in oxygen content in the air), 2 (soil erosion), and 5 (increase in CO2 content in the air). Therefore, the correct answer is 1, 2, and 5.

When the muscles between the ribs relax during human respiration, the ribs themselves become loose. This causes the chest cavity to decrease in size, resulting in expiration.

The correct answer is "Pemakaian H dari NADPH2 untuk menghasilkan senyawa PGAL yang beratom C3". This is the step of reduction in the dark reaction of photosynthesis. NADPH2 is used as a source of hydrogen (H) to convert carbon dioxide (CO2) into a three-carbon compound called PGAL. This reduction step is essential for the production of glucose in the Calvin cycle.

Organel X yang terdapat pada tumbuhan tetapi tidak pada sel hewan berperan dalam pembentukan karbohidrat. Karbohidrat merupakan salah satu jenis senyawa organik yang berfungsi sebagai sumber energi utama bagi sel. Proses pembentukan karbohidrat, yang dikenal sebagai fotosintesis, terjadi di dalam organel X pada tumbuhan. Sel hewan tidak memiliki organel X ini, sehingga mereka tidak dapat melakukan fotosintesis dan pembentukan karbohidrat.

If the genes C and D are linked in an individual with genotype AaBbCcDd, there will be a total of 8 different types of gametes that can be formed. This is because during meiosis, the linked genes C and D will tend to be inherited together as a unit, resulting in fewer possible combinations of alleles. Therefore, the number of different gametes formed is reduced compared to if the genes were not linked.

When someone bends their arm (flexion), the mechanism that occurs is the contraction of the biceps muscle and the relaxation of the triceps muscle. This is known as the antagonistic muscle action, where one muscle group contracts while the other relaxes to produce the desired movement. In this case, the biceps muscle is the agonist (prime mover) responsible for flexing the arm, while the triceps muscle acts as the antagonist, opposing the action of the biceps by relaxing.

The characteristics that are in line with the organelle of the endoplasmic reticulum are 4 and 6. The endoplasmic reticulum has a stacked membrane structure (characteristic 4) and contains hydrolytic enzymes (characteristic 6).

The correct answer is 2, 4, dan 5. This is because albinism, hemophilia, and color blindness are all congenital diseases, meaning they are present at birth and are inherited from one or both parents. AIDS and tuberculosis (TBC) are not congenital diseases as they are caused by infections and can be acquired later in life.

Pada gambar nefron, tahap reabsorbsi terjadi di bagian 3, yaitu tubulus proksimal. Di bagian ini, sebagian besar air, glukosa, garam, dan zat-zat lain yang dibutuhkan oleh tubuh akan diserap kembali ke dalam darah. Tahap aukmentasi terjadi di bagian 4, yaitu lingkup Henle. Di bagian ini, terjadi pertukaran aktif garam dan air antara filtrat dan darah untuk menghasilkan urin yang lebih pekat.

The correct answer is that agglutination will occur because the agglutinin b in Amin's blood will clump the agglutinogen B from the donor. This is because Amin's blood type is O, which does not have any antigens on the surface of red blood cells. Therefore, if Amin receives blood from a donor with type B blood, the agglutinin b in Amin's blood will recognize the agglutinogen B on the donor's red blood cells as foreign and cause them to clump together, leading to agglutination.

When black wheat (Hhkk) is crossed with yellow wheat (hhKk), black is epistatic to yellow. This means that the presence of the black allele (H) masks the expression of the yellow allele (K). The genotype of the offspring will be HhKk. When these offspring are crossed with each other, there is a 25% chance of producing black wheat (HHKK or HHKk), a 50% chance of producing yellow wheat (hhKK or hhKk), and a 25% chance of producing white wheat (hhkk). Therefore, the correct answer is 50% black, 25% yellow, and 25% white.

The correct answer is 3.1. 3. 1. In this question, the given information states that the cross is between a walnut (RrPp) and a pea (rrPp). The capital letters represent dominant traits, while the lowercase letters represent recessive traits. The possible offspring can be determined using the Punnett square method. By filling in the alleles for each parent and combining them, we get the ratio of 3 walnut, 1 rose, 3 pea, and 1 single.

The given answer "2. 1. 1" suggests that the offspring of a gray rabbit with genotype Cc and Cch c will have a genotype of Cc Cch c. This means that the offspring will have gray fur (Cc), chinchilla fur (Cch), and albino fur (c). The dominant alleles C and Cch determine the gray and chinchilla fur colors, respectively, while the recessive allele c determines the albino fur color. Therefore, the correct answer indicates the possible genotype and fur color combination of the offspring.

Antibodi monoklonal menggunakan teknik hibridoma yang menggabungkan sel penghasil antibodi dan sel kanker. Sel kanker digunakan sebagai sel hibrid karena dapat bereproduksi terus-menerus sehingga mudah dikembangbiakkan. Dengan kemampuan ini, antibodi monoklonal dapat diproduksi dalam jumlah yang besar dan konsisten, sehingga memudahkan dalam pengembangan dan produksi untuk keperluan diagnostik dan pengobatan penyakit.

The correct answer is 6 : 12 : 6. This can be explained by understanding the concept of genotypes and the trait being studied. In this case, the trait is the ability to taste the bitterness of PTC paper. The genotype TT represents individuals who can taste the bitterness, Tt represents individuals who can partially taste it, and tt represents individuals who cannot taste it at all. Since 25% of individuals cannot taste it, this means that 25% have the genotype tt. The remaining 75% of individuals can taste it either partially or fully, which means that they have either the genotype TT or Tt. Since the ratio of TT to Tt is 1:2, the ratio of TT:Tt:tt is 1:2:1, which simplifies to 6:12:6.

The correct answer is "eritrosit" because the question is asking about the occurrence of asexual reproduction of Plasmodium sp. in the human body. Plasmodium sp. is a parasite that causes malaria and it reproduces asexually in the red blood cells (eritrosit) of the host. This is a crucial part of the life cycle of the parasite and is responsible for the spread and persistence of malaria in the human population.

The correct answer is 1), 2), 4) dan 5). This is because during the menstrual phase, the endometrium lining of the uterus sheds (1). This is followed by a decrease in estrogen levels (2) and the cessation of corpus luteum activity (4). Additionally, there is a decrease in progesterone levels (5) during this phase. Therefore, all of these processes occur during the menstrual phase of the menstrual cycle.

The correct answer is 1), 3), dan 4). This is because these characteristics are specific to Gymnosperms. Gymnosperms have a taproot system (akar tunggang) and can undergo double fertilization (pembuahan ganda). They also have a cambium layer (kambium) which allows for secondary growth. Additionally, Gymnosperms have strobili (mempunyai strobilus), which are cone-like structures that produce reproductive structures.

The correct answer is "Mengurangi energi aktivasi yang diperlukan sehingga reaksi kimia berlangsung cepat". This conclusion can be drawn from the graph because it shows that the presence of a catalyst lowers the activation energy required for the chemical reaction to occur. This means that the reaction can proceed more quickly and efficiently in the presence of a catalyst.

Interferon is a protein produced by the body's immune system in response to viral infections. It helps to inhibit the replication of viruses and boost the immune response against them. By utilizing interferon as a medical treatment, it can be used to treat various viral infections, such as hepatitis and certain types of cancer. Therefore, the use of interferon as a medical product is beneficial in the field of medicine.

The correct answer is 5. The explanation for this is that the image of the chloroplast is not provided, so it is difficult to determine the exact location of the Calvin cycle. However, based on prior knowledge, the Calvin cycle occurs in the stroma of the chloroplast. Therefore, option 5 is the most likely answer as it represents the stroma, which is the correct location for the Calvin cycle.

The correct answer is that the immune system becomes specific when it produces antibodies in response to the entry of antigens. This is because antibodies are proteins that are specifically designed to recognize and bind to specific antigens, which are foreign substances that can cause harm to the body. By producing antibodies, the immune system can target and neutralize the specific antigens that have entered the body, providing a specific and targeted defense mechanism against pathogens.

The correct answer is 1, 2, 3, 4. This is because the given characteristics of Chlorophyta include: having a single cell without locomotive organs, having round-shaped cells, having a cup-shaped chloroplast, and being able to be used as food.

The correct answer is "glikolisis". Pada respirasi terjadi proses pemakaian karbohidrat menjadi piruvat yang disebut glikolisis. Glikolisis adalah proses penguraian glukosa menjadi dua molekul piruvat melalui serangkaian reaksi kimia. Proses ini terjadi di sitoplasma sel dan merupakan tahap awal dari respirasi seluler. Selama glikolisis, sejumlah kecil energi juga dihasilkan dalam bentuk ATP dan NADH.

The correct answer is 1 - 2 - 3. In a cell membrane, peripheral proteins are found on the outer surface of the membrane, attached to the integral proteins. Phospholipids are the main component of the cell membrane and are present in both the inner and outer layers. Integral proteins span the entire width of the membrane, with parts of the protein exposed on both the inner and outer surfaces. Therefore, the correct order of these components in a cell membrane is 1 - 2 - 3.