Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan
Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan percuma untuk dicetak: 8 soalan dari mudah hingga tahap peperiksaan, dengan skema jawapan. Cetak atau simpan sebagai PDF.
Untuk pensyarah dan guru: percuma untuk dicetak, disalin dan digunakan di dalam kelas. Setiap lembaran kerja baharu mempunyai nilai baharu dan skema jawapannya sendiri. Pautan ke ExamProblems di halaman kursus anda amat dihargai.
Nama: ____________________ Tarikh: ____________
1.Mudah
What is homeostasis?
AMaking identical copies of a cell
BChanging a species over many generations
CKeeping a stable internal environment
DBreaking down food for energy
2.Mudah
Which characteristic is shared by all living things?
AThey respond to changes in their environment
BThey make their own food by photosynthesis
CThey are made of many cells
DThey have a backbone and a brain
3.Mudah
Seorang organisma mempunyai genotip Bb. Bagaimanakah ia dihuraikan?
AHomozigus dominan
BHeterozigus
CHomozigus resesif
DHaploid
4.Sederhana
Why do the palisade cells near the top surface of a leaf contain many chloroplasts?
AThey carry sugars from the leaves down to the roots
BThey store most of the plant's water for dry periods
CThey protect the leaf from insects and strong winds
DThey get the most light and do most of the photosynthesis
5.Sederhana
Sickle cell disease is caused by a single base change that replaces one amino acid in haemoglobin. What type of mutation is this?
AA missense mutation
BA silent mutation
CA nonsense mutation
DA frameshift mutation
6.Sederhana
In gel electrophoresis, why does DNA move towards the positive electrode?
ADNA has no charge and moves at random
BDNA has a negative charge from its phosphate groups
CDNA is pulled by gravity through the gel
DDNA has a positive charge from the nitrogen bases it contains
7.Sukar
Why is one new DNA strand made in short pieces (Okazaki fragments) during replication?
ADNA polymerase works only 5' to 3', and the strands are antiparallel
BThe lagging strand is made of RNA instead of DNA, so it must be built in pieces
COnly half of the DNA needs to be copied
DHelicase cuts that strand into pieces before copying
8.Sukar
Griffith injected mice with heat-killed harmful bacteria mixed with live harmless bacteria. The mice died, and live harmful bacteria were found in them. What did this show?
AThe mice were killed by the dead bacteria alone
BBacteria can be killed by the immune system of mice
CA substance from the dead bacteria changed the harmless ones
DHeat makes harmless bacteria become harmful when they are injected
Kunci jawapan
1. C · Keeping a stable internal environment
2. A · They respond to changes in their environment
3. B · Heterozigus
4. D · They get the most light and do most of the photosynthesis
5. A · A missense mutation
6. B · DNA has a negative charge from its phosphate groups
7. A · DNA polymerase works only 5' to 3', and the strands are antiparallel
8. C · A substance from the dead bacteria changed the harmless ones
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