Lembar rumus, langkah-langkah metode utama untuk setiap topik, dan 16 soal latihan, dengan pembahasan lengkap di bagian belakang.
“Unlike email, which can be read at any time, a phone call needs both people to be available at once.” What difference does the sentence describe?
Visiting rules: “Children under 14 may visit only with an adult. No more than 2 visitors at the bedside. Visiting ends at 8 p.m.” A mother and her 12-year-old and 15-year-old children want to visit together at 7 p.m. Which rule would they break?
Sebuah klinik menangani 540 pasien pada bulan Maret dan 513 pada bulan April. Berapa persen penurunannya p?
Tabel menunjukkan jumlah relawan di pusat A, B, dan C pada 2024 dan 2025. Berapa rata-rata jumlah relawan per tahun x̄ di pusat B selama dua tahun?
Katup apa yang terletak di antara atrium kiri dan ventrikel kiri?
Struktur apa yang terdapat di mediastinum posterior?
Peristiwa hormonal mana yang memicu ovulasi?
Mengapa pasien keracunan karbon monoksida dapat memiliki PaO₂ normal tetapi hipoksia jaringan berat?
A solution of pH 4 is compared with a solution of pH 6. How many times more hydrogen ions does the pH 4 solution have?
One sample of an enzyme is boiled and then cooled to 37 °C. Another is kept at 4 °C and then warmed to 37 °C. Which sample will work at 37 °C?
At STP (0 °C and 1 atm), what volume does 1 mole of an ideal gas occupy?
How does a rise in temperature affect how much carbon dioxide gas can dissolve in a soft drink?
Choose the correct word: “Last night he ___ awake for hours.”
Choose the correct verb: “A number of patients ___ waiting outside.”
Choose the meaning of the word in bold: “The patient’s compliance with treatment was excellent.”
Which word is closest in meaning to alleviate?
Jawaban: C · Calls need both people free at once.
The sentence contrasts email, which can be read whenever is convenient, with a phone call, which needs both people available at the same moment.
Jawaban: D · The limit of 2 visitors at the bedside
Three visitors would exceed the limit of 2. The 12-year-old is with an adult, and 7 p.m. is before visiting ends.
Jawaban: p = 5 %
Persen berarti per seratus: p% dari suatu bilangan adalah (p/100) × bilangan itu. Untuk mencari A adalah berapa persen dari B, bagi A dengan B lalu kalikan 100. Perubahan persen membandingkan perubahan dengan nilai semula: perubahan persen = (baru − semula)/semula × 100.
Jawaban: x̄ = 87,5
Rata-rata, median, modus, dan jangkauan: rata-rata (mean) adalah jumlah dibagi banyaknya nilai. Median adalah nilai tengah setelah nilai diurutkan; jika banyak nilai genap, median adalah rata-rata dari dua nilai tengah. Modus adalah nilai yang paling sering muncul. Jangkauan adalah nilai terbesar dikurangi nilai terkecil.
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 · Esofagus
Mediastinum posterior berisi esofagus, aorta desendens, vena azigos, dan duktus torasikus. Jantung dan aorta asendens berada di mediastinum medius; timus di mediastinum superior dan anterior.
Jawaban: B · Lonjakan luteinising hormone (LH)
Estrogen yang meningkat dari folikel dominan memicu lonjakan LH dari hipofisis anterior, yang menyebabkan ovulasi sekitar sehari kemudian.
Jawaban: A · CO menempati situs ikatan hemoglobin, sehingga kandungan oksigen turun
CO mengikat hemoglobin jauh lebih kuat daripada oksigen dan menggeser kurva ke kiri. O₂ terlarut (PaO₂) normal, tetapi kandungan oksigen total dan pelepasannya ke jaringan turun tajam.
Jawaban: B · 100 times
The pH scale is logarithmic. A difference of 2 pH units means 10 × 10 = 100 times more hydrogen ions in the more acidic solution.
Jawaban: B · Only the sample that was kept at 4 °C
Low temperature slows an enzyme without damaging it, so activity returns when it is warmed. Boiling denatures the enzyme, and the lost shape usually does not return on cooling.
Jawaban: D · 22,4 L
One mole of any ideal gas at 0 °C and 1 atm occupies 22,4 L, called the molar volume. It does not depend on which gas it is.
Jawaban: A · Less gas dissolves, so warm drinks go flat faster
Gas solubility decreases as temperature rises, because gas molecules gain energy and escape the liquid. Most solids show the opposite trend, dissolving better in hot water.
Jawaban: D · lay
“Lie” means to recline: lie, lay, lain. “Laid” is the past of “lay” (to put something down), and “lied” means told an untruth.
Jawaban: A · are
“A number of” means “several” and takes a plural verb. “The number of” refers to one figure and takes a singular verb.
Jawaban: C · Following the treatment as instructed
Compliance (or adherence) means following the agreed treatment plan.
Jawaban: A · Relieve
To alleviate is to make suffering or a problem less severe, which is to relieve it.
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