Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the main job of the cell wall in a plant cell?

1. ATo control which genes are switched on in the nucleus
2. BTo release energy from glucose
3. CTo support the cell and stop it from bursting
4. DTo make proteins for the cell

In genetics, what is a carrier?

1. AA person with one recessive allele for a disorder but no symptoms
2. BA person who has lost both alleles for the gene, so shows no trait
3. CA person with two recessive alleles who has the disorder
4. DA person who has a dominant disorder

What do receptor proteins in the cell membrane do?

1. AThey digest bacteria that enter the cell
2. BThey make ATP for the cell
3. CThey store the cell's genetic code for making proteins
4. DThey bind specific signal molecules, such as hormones

During which division of meiosis do homologous chromosomes separate?

1. ABoth meiosis I and meiosis II
2. BMeiosis I
3. CNeither, because they separate in mitosis
4. DMeiosis II

What is a prion?

1. AA bacterium without a cell wall that lives inside nerve cells
2. BA fungal spore that infects the brain
3. CA very small virus with a DNA genome
4. DA misfolded protein that causes normal proteins to misfold

Which statement about Archaea is correct?

1. AThey are eukaryotes that have a nucleus and membrane-bound organelles
2. BThey are prokaryotes, and many live in extreme environments
3. CThey are multicellular plants
4. DThey are a type of virus

Two parents who both have a genetic condition have a child who does not. Assuming a single gene, what inheritance pattern does this show?

1. AAutosomal recessive, with both parents heterozygous
2. BAutosomal recessive, with both parents homozygous
3. CX-linked recessive, with the father as a carrier
4. DAutosomal dominant, with both parents heterozygous

Paper discs with antibiotics X, Y and Z are placed on a plate covered with bacteria. The clear zones around them are 2 mm, 15 mm and 0 mm wide. What is the best conclusion?

1. AZ is most effective, because no bacteria grew under the disc
2. BX is most effective, and the bacteria are resistant to Y
3. CY is most effective, and the bacteria are resistant to Z
4. DAll three are equally effective against these bacteria