Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

Di manakah kebanyakan DNA sel eukariot ditemui?

1. ADalam membran sel
2. BDalam lisosom
3. CDalam dinding sel
4. DDalam nukleus

What is a eukaryote?

1. AAn organism that lives only in extreme heat
2. BAn organism made of a single cell without a nucleus
3. CA virus that infects animal cells
4. DAn organism whose cells have a nucleus

Apakah gen?

1. ASejenis sel yang membawa sifat baka
2. BProtein yang menyalin DNA sebelum pembahagian sel
3. CSatu bahagian DNA yang mengekod hasil seperti protein
4. DSet lengkap semua kromosom sesuatu sel

Why do the palisade cells near the top surface of a leaf contain many chloroplasts?

1. AThey carry sugars from the leaves down to the roots
2. BThey get the most light and do most of the photosynthesis
3. CThey protect the leaf from insects and strong winds
4. DThey store most of the plant's water for dry periods

What happens to an enzyme after it has catalysed a reaction?

1. AIt becomes part of the product and leaves with it
2. BIt is released unchanged and can be used again
3. CIt changes into the substrate
4. DIt is broken down into amino acids

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt works only in the dark, like the bacteria it comes from
2. BIt copies RNA as well as DNA
3. CIt survives the high temperatures used to separate the strands
4. DIt makes the DNA strands stick together

A man with an X-linked recessive disorder (XʰY) has children with a woman who has two normal alleles (XᴴXᴴ). What is expected among their children?

1. AAll sons are affected, and no daughters are carriers
2. BHalf of the sons and half of the daughters are affected
3. CAll daughters are carriers, and no sons are affected
4. DAll daughters are affected, and all sons are carriers

A single-celled organism has a nucleus, no cell wall and swims using cilia. In which group is it best placed?

1. APlants
2. BProtists
3. CFungi
4. DBacteria