Lembaran formula, langkah kaedah utama untuk setiap topik dan 16 soalan latihan, dengan penyelesaian penuh di bahagian belakang.
“The town had a problem: the only bridge over the river was too narrow for two cars. The council solved it by building a second bridge and making each one-way.” How is the passage organised?
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?
Hitung 3 2/5 ÷ 5/8. Klik jawapan dalam bentuk termudah.
Seorang ibu berumur 2 kali ganda umur anak lelakinya. Umur mereka berdua berjumlah 21 tahun. Berapakah umur anak lelaki itu x?
Manakah saraf yang terbesar dalam tubuh manusia?
Semasa tusukan lumbar, ligamen manakah yang terakhir ditembusi sebelum jarum memasuki ruang epidural?
Apakah yang menyebabkan bunyi jantung pertama (S1)?
Embolus pulmonari menyekat aliran darah ke kawasan paru-paru yang diventilasi dengan baik. Bagaimanakah nisbah ventilasi–perfusi (V/Q) kawasan itu berubah?
What happens in the lytic cycle of a virus?
Bacteria grown in heavy nitrogen (¹⁵N) are moved to normal nitrogen (¹⁴N) and allowed to divide once. All their DNA now has a density halfway between heavy and light. Which model of replication does this support?
A room is at 25 °C. What is this temperature in kelvin?
What is a triglyceride made of?
Which is the correct spelling of the past tense of “occur”?
Which phrase puts the adjectives in the usual English order?
Choose the meaning of the word in bold: “The nurse recorded the time of onset of the chest pain.”
What does the term polyuria mean?
Jawapan: D · Problem and solution
The passage states a problem (a narrow bridge) and then gives the solution (a second bridge and one-way traffic).
Jawapan: A · 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.
Jawapan: 5 11/25
Mendarab dan membahagi pecahan: mula-mula tukarkan nombor bercampur kepada pecahan tak wajar (2 1/3 = 7/3). Untuk mendarab, darabkan pengangka dan penyebut. Untuk membahagi, kekalkan pecahan pertama, tukar ÷ kepada ×, dan terbalikkan pecahan kedua (darab dengan salingannya). Batalkan faktor sepunya dan tulis hasilnya dalam bentuk termudah sebagai nombor bercampur.
Jawapan: x = 7 tahun
Soalan perkataan: namakan nilai yang tidak diketahui (contohnya x = bilangan bulan), tulis fakta sebagai satu persamaan, selesaikannya, dan semak bahawa jawapan masuk akal dalam cerita itu. Yuran tetap ditambah kadar bagi setiap unit memberikan jumlah = yuran + kadar × unit.
Jawapan: B · Saraf siatik
Saraf siatik (L4–S3) meninggalkan pelvis melalui foramen siatik besar dan membekalkan hamstring serta semua otot di bawah lutut. Kulit di sebelah dalam kaki pula dibekalkan oleh saraf safenus.
Jawapan: A · Ligamentum flavum
Jarum melalui kulit, ligamen supraspinus dan interspinus, kemudian ligamentum flavum ke dalam ruang epidural, seterusnya dura dan araknoid ke dalam ruang subaraknoid.
Jawapan: D · Penutupan injap mitral dan trikuspid
S1 ("lub") disebabkan oleh penutupan injap atrioventrikel pada permulaan sistol. S2 ("dub") ialah penutupan injap semilunar.
Jawapan: D · Ia menjadi sangat tinggi, bertindak sebagai ruang mati
Ventilasi tanpa perfusi memberikan nisbah V/Q yang sangat tinggi (ruang mati). Pirau, seperti dalam pneumonia, adalah sebaliknya: perfusi tanpa ventilasi.
Jawapan: C · The virus makes many copies in the host cell, which then bursts
In the lytic cycle the virus takes over the cell, makes new virus particles and bursts (lyses) the cell to release them. In the lysogenic cycle the viral DNA hides in the host genome before becoming active later.
Jawapan: B · Semiconservative replication
This is the Meselson–Stahl experiment. Intermediate density after one generation means each molecule had one old (heavy) and one new (light) strand. Conservative replication would have given separate heavy and light bands.
Jawapan: B · 298 K
K = °C + 273, so 25 + 273 = 298 K. Kelvin temperatures are never negative because 0 K is absolute zero.
Jawapan: D · One glycerol molecule joined to three fatty acids
A triglyceride, the main form of fat stored in the body, forms when three fatty acids each bond to one of glycerol's three –OH groups by condensation, releasing three water molecules.
Jawapan: D · occurred
“Occur” is stressed on the last syllable, so the r doubles: occurred, occurring, occurrence.
Jawapan: C · a lovely old wooden table
English adjectives usually follow the order opinion, size, age, shape, colour, origin, material, purpose. “Lovely” (opinion), “old” (age), “wooden” (material) follows that order.
Jawapan: A · Beginning
Onset is the beginning of a symptom or disease.
Jawapan: D · Passing large amounts of urine
Poly- (much) + -uria (urine). Anuria is no urine, dysuria painful urination and haematuria blood in the urine.
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