TKA 2025 – Berdasarkan pengumuman resmi dari Pusmendik, Kemdikbud, pelaksanaan TKA 2025 untuk tingkat SMA/MA/SMK/MAK berlangsung mulai 1 hingga 9 November 2025. Jadwal ini diumumkan secara resmi melalui akun Instagram @pusmendik pada 10 Juli 2025.
Sebelum mengikuti tes utama, peserta dijadwalkan mengikuti simulasi TKA lebih dulu pada 6-12 Oktober 2025 untuk memberikan gambaran teknis mengenai soal dan sistem ujian.
Update Rapat Nasional Terkait AN dan TKA 2025
Rapat Koordinasi Nasional Pusmendik pada 30 Juni – 2 Juli 2025 menghasilkan sejumlah pembaruan. Salah satu keputusan penting adalah pendataan AN dilakukan lebih terstruktur dan terintegrasi. Selain AN, TKA juga tetap menjadi fokus dengan simulasi dilaksanakan sekali sebelum ujian.
Acara ini dihadiri lebih dari 400 perwakilan instansi pendidikan dari 38 provinsi. Pemerintah menegaskan TKA akan menjadi alat ukur tambahan untuk mendukung pemerataan kualitas pendidikan nasional, selain untuk mendukung seleksi jalur prestasi di jenjang selanjutnya.
Contoh Soal TKA
1. teori evolusi Darwin menyatakan:
“Alam akan mengadakan seleksi terhadap makhluk yang ada di dalamnya, hanya makhluk hidup yang mampu beradaptasi dengan lingkungan yang dapat bertahan hidup.” Fenomena evolusi yang sesuai dengan pendapat Darwin tersebut adalah ….
A. Populasi kupu-kupu Biston bitularia sayap gelap lebih banyak dibandingkan kupu-kupu Biston bitularia sayap cerah setelah revolusi industri
B. Populasi jerapah leher panjang lebih banyak setelah populasi pohon berbatang pendek sebagai penyedia makanannya berkurang
C. Usus buntu pada manusia mengalami penyusutan dan mengecil karena manusia menjadi pemakan segala (omnivora)
D. Populasi ular semakin menurun ketika berada di lingkungan yang terdapat banyak predatornya
E. Populasi tikus berekor pendek menurun seiring menurunnya jumlah makanan yang tersedia di lingkungannya
Jawaban: A
Pembahasan:
Keberadaan kupu-kupu Biston bitularia sekarang sudah punah. Hal ini disebabkan karena pada saat terjadi revolusi industri di Inggris, semua batang tempat hinggap kupu-kupu Biston bitularia dipenuhi asap dan jelaga.
Akibatnya, Biston bitularia bersayap cerah tidak mempunyai tempat hinggap yang aman. Hinggap di mana saja diketahui oleh pemangsanya. Hal ini karena warna sayap dan warna tempat hinggapnya sangat kontras.
Hingga akhirnya kupu-kupu Biston
bitularia bersayap cerah punah karena terseleksi
alam.
Jadi, fenomena evolusi yang sesuai dengan pendapat Darwin tersebut adalah tentang kupu-kupu Biston bitularia (A).
2. Tanaman gandum bulir banyak kulit keriput (AAbb) disilangkan dengan tanaman gandum bulir sedikit kulit halus (aaBB) didapatkan keturunan F1 bulir banyak kulit halus (AaBb). Kemudian antar F1 disilangkan sesamanya dihasilkan F2. Berapa persen individu yang memiliki genotip double heterozigot (AaBb)?
A. 56,25%.
B. 50%.
C. 25%.
D. 18,75%.
E. 6,25%.
Jawaban: C
Pembahasan
Tanaman gandum dengan genotip AAbb disilangkan dengan aaBB.
P : AAbb × aaBB
F1 : AaBb
F1×F1 :AaBb×AaBb
F2 :
Jumlah semua genotip yang terbentuk adalah 16 sedangkan jumlah genotip heterozigot ganda (AaBb) adalah 4. Dengan demikian, persentase genotip AaBb adalah:
% AaBb = 4/16 × 100% = 25%
Jadi, individu yang memiliki genotip double heterozigot adalah 25%
3. Perhatikan diagram persilangan Linaria marocana merah dan putih berikut!
Rasio fenotip antara ungu : putih : merah pada F2 adalah ….
A. 3:2:3
B. 5:2:8
C. 9:3:4
D. 9:4:3
E. 12:3:1
Jawaban: D
Pembahasan
Persilangan Linaria marocana di atas merupakan penyimpangan semu hukum Mendel. Gen dominan tidak menampakkan pengaruhnya bila berdiri sendiri, tetapi akan berpengaruh bila berada bersama-sama gen dominan lainnya. Penyimpangan ini dikenal dengan istilah kriptomeri.
9A_B_ → ungu
3A_bb → merah
3aaB_ → putih
1aabb → putih
Dengan demikian, perbandingan fenotip antara ungu : merah : putih = 9 : 3 : 4. Tapi soal di atas minta perbandingan ungu : putih : merah = 9 : 4 : 3.
Jadi, rasio fenotip antara ungu : putih : merah pada F2 adalah 9 : 4 : 3 (D)
Soal TKA Bahasa Inggris
1. Answer: C. Climate change disrupts both environmental and human systems.
Explanation: The main idea highlights how climate change impacts both environmental (melting ice caps, rising sea levels) and human systems (agriculture, food security). Other options either oversimplify or focus on specific details that are not the central message.
Mengidentifikasi Simpulan, Pandangan Atau Maksud
We must act now to reduce plastic pollution. Every year, millions of tons of plastic waste end up in the ocean, endangering marine life and polluting ecosystems. Simple actions like using reusable bags, avoiding single-use plastics, and recycling can significantly reduce the problem.
What is the author’s purpose in writing this text?
A. To criticize the use of plastics in daily life.
B. To encourage readers to take action against plastic pollution.
C. To describe the harmful effects of plastic waste on ecosystems.
D. To argue that recycling is the only solution to pollution.
E. To inform readers about the history of plastic usage.
Answer: B. To encourage readers to take action against plastic pollution.
Explanation: The text emphasizes the urgency of the issue and provides solutions, indicating the author’s goal to persuade readers to make changes.
2. Making Logical Connections
Researchers have found that regular exercise not only improves physical health but also enhances mental well-being. Physical activity releases endorphins, which reduce stress and improve mood. Moreover, people who exercise regularly tend to have better sleep patterns and higher energy levels throughout the day.
Which of the following best summarizes the connection made in the text?
A. Exercise directly improves physical health and sleep quality.
B. Endorphins released during exercise are the main reason for better mental well-being.
C. Exercise benefits both mental and physical health through various mechanisms.
D. Regular exercise is only beneficial for managing stress levels.
E. Physical activity improves mood but does not affect energy levels.
Answer: C. Exercise benefits both mental and physical health through various mechanisms.
Explanation: The text links physical health, mental well-being, and secondary benefits like sleep and energy, making option C the most comprehensive summary.
3. Evaluating an Argument
Some argue that online education is a better alternative to traditional classrooms due to its flexibility and accessibility. However, critics point out that the lack of face-to-face interaction can hinder students’ social and communication skills.
Which of the following questions would best evaluate the argument?
A. How many students currently prefer online education?
B. What are the long-term effects of online learning on communication skills?
C. Can traditional classrooms incorporate flexible learning methods?
D. What is the role of teachers in online education?
E. How does online education affect the accessibility of learning materials?
Answer: B. What are the long-term effects of online learning on communication skills?
Explanation: This question directly addresses the critical point raised by critics, helping evaluate the argument’s validity about the social drawbacks of online education.
4. Identifying the Implication of a Plot
In the story, Sarah was excited to participate in her school’s science fair. She had spent weeks perfecting her experiment and was confident in her work. On the day of the event, her project malfunctioned, and she had to explain what went wrong to the judges. Despite this setback, Sarah was awarded a special recognition for her problem-solving skills and positive attitude.
What is the primary implication of the plot?
A. Hard work always guarantees success.
B. Problem-solving skills are more important than success.
C. Participation in events is more important than winning.
D. Attitude and adaptability can turn failures into opportunities.
E. Science fairs are meant to test resilience.
Answer: D. Attitude and adaptability can turn failures into opportunities.
Explanation: The story demonstrates how Sarah’s attitude and problem-solving abilities helped her turn a failure into recognition, making option D the best choice.
5. Menyimpulkan mengenai topik/isu/masalah
Deforestation has become a significant environmental issue. Forests are being cleared at alarming rates for agriculture, urban development, and logging. This not only leads to habitat destruction for countless species but also contributes to climate change by reducing the planet’s ability to absorb carbon dioxide.
What can be concluded about the issue of deforestation based on the text?
A. Deforestation is primarily caused by agriculture.
B. The loss of forests has minimal impact on the environment.
C. Deforestation negatively affects biodiversity and climate stability.
D. Urban development is the only cause of deforestation.
E. Reforestation efforts are unnecessary to address deforestation.
Answer: C. Deforestation negatively affects biodiversity and climate stability.
Explanation: The text highlights habitat destruction and climate change as key consequences of deforestation, making option C the most accurate conclusion.
6. Sikap/nilai yang diusung
Proponents of nuclear energy argue that it is a clean and efficient way to produce electricity without emitting greenhouse gases. However, critics highlight the potential risks, including nuclear accidents and the challenge of managing radioactive waste.
What is the key difference between the two perspectives mentioned in the text?
A. Proponents focus on economic benefits, while critics emphasize safety concerns.
B. Proponents focus on environmental benefits, while critics emphasize risks and waste management.
C. Critics argue for renewable energy, while proponents oppose it.
D. Both proponents and critics agree that nuclear energy is too risky.
E. Critics highlight cost efficiency, while proponents emphasize risks.
Answer: B. Proponents focus on environmental benefits, while critics emphasize risks and waste management.
Explanation: The proponents’ argument is based on nuclear energy’s positive impact on reducing greenhouse gas emissions, while critics focus on the risks and waste challenges, reflecting their differing priorities.
7. What is the primary role of the speaker in the text?
The speaker, an environmental scientist, addressed the audience about the dangers of plastic pollution in oceans. Her presentation included recent research findings and practical solutions for reducing plastic waste, such as recycling and using biodegradable materials.
Question:
A. To present recent research findings on marine ecosystems.
B. To educate and inspire action to reduce plastic pollution.
C. To argue for the ban on plastic use globally.
D. To discuss the history of plastic usage in industries.
E. To criticize governments for inaction on plastic pollution.
Answer: B. To educate and inspire action to reduce plastic pollution.
Explanation: The speaker’s role is to share knowledge and motivate the audience to act, based on the practical solutions provided in the presentation.
8. Penggunaan (a.l. tempat, waktu, situasi)
The library is a quiet place where students can focus on studying or completing assignments. It provides access to a wide range of books, journals, and digital resources. Visitors are expected to keep noise levels low and respect others.
In what situation is the library most appropriately used?
A. Organizing group debates with loud discussions.
B. Borrowing and returning books for academic purposes.
C. Hosting a celebration or party with friends.
D. Practicing a musical instrument with peers.
E. Holding a casual conversation with a large group.
Answer: B. Borrowing and returning books for academic purposes.
Explanation: The library is best suited for academic activities, such as studying and accessing resources, rather than noisy or casual gatherings.
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