
Kuis Vitamin B12 dan Folat
Authored by harry freitag
Biology
University
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa indikator paling spesifik untuk menilai metabolisme vitamin B12?
Kadar serum vitamin B12
Kadar folat plasma
Kadar metilmalonat (MMA)
Kadar hemoglobin
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa kadar homosistein (tHcy) tidak selalu spesifik sebagai indikator defisiensi vitamin B12?
Karena tidak dipengaruhi oleh vitamin lain
Karena juga dipengaruhi oleh asupan protein
Karena juga meningkat pada defisiensi folat dan vitamin B6
Karena hanya berubah jika terjadi anemia
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa fungsi utama dari Intrinsic Factor (IF) dalam penyerapan vitamin B12?
Mengubah B12 menjadi bentuk aktif
Mengangkut B12 ke hati
Mengikat B12 untuk diserap di ileum
Memecah B12 dari protein makanan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa defisiensi vitamin B12 dapat berkembang cepat pada pasien dengan anemia pernisiosa?
Karena kehilangan asam lambung
Karena kehilangan Intrinsic Factor
Karena diet rendah protein
Karena konsumsi alkohol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Makanan mana yang merupakan sumber alami tertinggi vitamin B12?
Telur
Susu
Hati
Nori
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan mana yang benar mengenai vitamin B12 dari makanan nabati?
Selalu bioaktif dan mudah diserap
Ditemukan dalam semua jenis jamur
Biasanya berupa analog yang tidak aktif bagi manusia
Tersedia dalam semua sayuran hijau
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa lansia sering mengalami defisiensi subklinis vitamin B12?
Karena penurunan konsumsi daging
Karena kehilangan fungsi ginjal
Karena atrophic gastritis menyebabkan malabsorpsi protein-bound B12
Karena kekurangan folat
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