ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

Which carbohydrate forms plant cell walls and acts as dietary fibre?

1. AGlucose
2. BGlycogen
3. CCellulose
4. DLactose

What does phloem carry in a plant?

1. ASugars made in the leaves
2. BWater from the roots only
3. CChlorophyll to the stem
4. DCarbon dioxide from the air

What is a genetically modified organism (GMO)?

1. AAn organism that has been grown in a greenhouse
2. BAn organism that has caught a virus
3. CAn organism whose DNA has been changed by genetic engineering
4. DAn organism produced by normal sexual reproduction between two parents

A thermometer gives readings of 36.1, 36.1 and 36.2 °C for a water bath that is really at 37.0 °C. How are these readings best described?

1. APrecise but not accurate
2. BNeither accurate nor precise
3. CAccurate but not precise
4. DBoth accurate and precise

Why must human gametes be haploid?

1. ASo that the gametes can divide quickly by mitosis
2. BSo that the gametes can make more proteins
3. CSo that the zygote has the normal number of 46 chromosomes
4. DSo that the zygote has twice the normal number of chromosomes

แป้ง ไกลโคเจน และเซลลูโลสมีสิ่งใดร่วมกัน

1. Aเป็นพอลิแซ็กคาไรด์ที่ประกอบด้วยหน่วยกลูโคส
2. Bเป็นโปรตีนที่ประกอบด้วยกรดอะมิโน
3. Cเป็นลิพิดที่สะสมพลังงาน
4. Dเป็นกรดนิวคลีอิกที่เก็บข้อมูลพันธุกรรม

Redi placed meat in open jars and in jars covered with gauze. Maggots appeared only on meat that flies could reach. What did this show?

1. AMaggots come from eggs laid by flies, not from the meat itself
2. BGauze produces chemicals that stop meat from rotting
3. CFlies form from rotting meat, and then they lay eggs on fresh meat
4. DMeat turns into maggots when exposed to air

PCR starts with one double-stranded DNA molecule, and the number of copies doubles each cycle. How many copies are there after 10 cycles?

1. A1024
2. B20
3. C512
4. D100