Lembar rumus, langkah-langkah metode utama untuk setiap topik, dan 16 soal latihan, dengan pembahasan lengkap di bagian belakang.
“Basketball was invented in 1891 by James Naismith, a teacher in Massachusetts who wanted an indoor game for his students during the cold winter.” Why did Naismith invent basketball?
A medicine label reads: “Take 1 capsule every 8 hours. Do not take with milk or antacids. Finish the full course even if you feel better.” A patient feels well after 3 days of a 7-day course. What should the patient do?
Hitung 3 1/2 ÷ 1 1/4. Klik jawaban dalam bentuk paling sederhana.
Sebuah resep menyuruh memanggang pada 160 °C. Berapa suhu itu T dalam derajat Fahrenheit?
Katup apa yang terletak di antara atrium kiri dan ventrikel kiri?
Stroke yang mengenai arteri serebri media kiri pada orang yang dominan tangan kanan paling mungkin menyebabkan:
Apa efek utama aldosteron pada ginjal?
Seorang pasien kanker paru sel kecil memiliki natrium plasma rendah dan osmolalitas plasma rendah, tetapi urine yang pekat secara tidak sesuai. Apa penjelasan yang paling mungkin?
How does facilitated diffusion differ from active transport?
Redi placed meat in open jars and in jars covered with gauze. Maggots appeared only on meat that flies could reach. What did this show?
To which family of organic compounds does ethanol, C₂H₅OH, belong?
J.J. Thomson's cathode ray experiments led to which discovery?
Choose the correct word: “He was ___ by the loud noise.”
Choose the correct verb: “Either the manager or the employees ___ responsible for locking up.”
Choose the meaning of the word in bold: “The nurse gave an accurate handover report.”
Choose the meaning of the word in bold: “The aetiology of the disease is still unknown.”
Jawaban: B · To give students an indoor winter game
Naismith wanted an indoor game for his students during the cold winter, which is why he invented basketball.
Jawaban: B · Keep taking the capsules until the course is finished.
The label says to finish the full course even if you feel better, so the patient should continue every 8 hours until day 7.
Jawaban: 2 4/5
Mengalikan dan membagi pecahan: pertama ubah bilangan campuran menjadi pecahan tak wajar (2 1/3 = 7/3). Untuk mengalikan, kalikan pembilang dengan pembilang dan penyebut dengan penyebut. Untuk membagi, pertahankan pecahan pertama, ubah ÷ menjadi ×, dan balik pecahan kedua (kalikan dengan kebalikannya). Coret faktor persekutuan dan tulis hasilnya dalam bentuk paling sederhana sebagai bilangan campuran.
Jawaban: T = 320 °F
Skala suhu: °F = °C × 9/5 + 32 dan °C = (°F − 32) × 5/9. Perubahan suhu dikonversi tanpa 32, karena 32 hanya menggeser titik nol: perubahan 1 °C sama dengan perubahan 1,8 °F.
Jawaban: C · Katup mitral (bikuspid)
Katup mitral (bikuspid) memisahkan atrium kiri dan ventrikel kiri; katup trikuspid melakukan hal yang sama di sisi kanan.
Jawaban: B · Kelemahan sisi kanan dan afasia
ACM kiri memasok korteks motorik kiri (wajah dan lengan sisi kanan) serta area Broca dan Wernicke, sehingga hemiparesis kanan dengan afasia adalah gambaran khas.
Jawaban: A · Reabsorpsi natrium dan sekresi kalium di nefron distal
Aldosteron bekerja pada tubulus distal dan duktus koligens untuk meningkatkan reabsorpsi Na⁺ dan sekresi K⁺. Air mengikuti natrium, sehingga volume darah naik.
Jawaban: A · Sindrom sekresi ADH yang tidak sesuai
Pada SIADH, ADH berlebih membuat ginjal menahan air, mengencerkan plasma sementara urine tetap pekat. Kanker paru sel kecil dapat menyekresikan ADH.
Jawaban: A · It needs no energy and moves substances down their gradient
Both use membrane proteins, but facilitated diffusion is passive: substances move from high to low concentration without ATP. Active transport uses energy to move substances from low to high concentration.
Jawaban: B · Maggots come from eggs laid by flies, not from the meat itself
Redi's experiment showed that maggots did not arise spontaneously from meat. They appeared only where flies could lay eggs, which was early evidence against spontaneous generation.
Jawaban: C · Alcohols
Ethanol has an –OH group, so it is an alcohol. Names ending in "-ol" signal alcohols, such as methanol and propanol. Ethanol is used in hand sanitisers and as a disinfectant.
Jawaban: A · Atoms contain small, negatively charged particles
Cathode rays were deflected toward positive plates and were the same for every metal used, so Thomson concluded that all atoms contain negative particles, later called electrons. The nucleus and neutron were discovered later.
Jawaban: C · startled
The -ed participle describes the person who feels something. “Startling” would describe the noise itself.
Jawaban: A · are
With “either … or”, the verb agrees with the closer subject, “employees”, which is plural.
Jawaban: D · Correct
Accurate means correct and free of mistakes.
Jawaban: B · Cause or origin
Aetiology (US: etiology) is the cause or origin of a disease.
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