BBO竞赛真题分享来了这些英文版的题目词汇和问题你都能理解吗-唯寻国际教育

BBO竞赛将于2022年4月9日举行考试，关于这个竞赛的含金量以及重要性相信很多同学都已经了解了。离这个竞赛开始还有3个月的时间，下面给大家分享一些BBO竞赛真题，赶紧来练手感吧！

BBO竞赛真题分享来了这些英文版的题目词汇和问题你都能理解吗内容图片_1

BBO竞赛真题

Q1In which of the following polymers would you find alpha glucose joined only by 1,4 glycosidic bonds?

A. Amylopectin

B. Amylose

C. Cellulose

D. Glycogen

Q2Four different concentrations of glucose solution were each tested using Benedict's solution. The same volume of glucose and Benedict's solution was used in each case. After 5 minutes the colour of the precipitate was noted:

A. Sample 1: orange

B. Sample 2: yellow

C. Sample 3: green

D. Sample 4: brick-red

Q3Which of the following statements about clones is true?

A. Human twins are always clones

B. Only bacteria can form clones

C. Their DNA is identical

D. They will always show identical phenotypes

Q4Which of the following diseases may be treated with a course of antibiotics?

A. AIDS

B. Cholera

C. Common cold

D. Influenza

Q5Put the stages of meiosis in the correct order.

A. Chiasmata form

B. Homologous chromosomes separate

C. Non-identical sister chromatids separate

D. Homologous chromosomes pair up

E. DNA replicates

BBO竞赛真题分享来了这些英文版的题目词汇和问题你都能理解吗内容图片_2

Q6The transpiration rate of a plant may vary during the day. Which of the following

would result in an increase in transpiration?

A. A decrease in temperature

B. Closure of stomata

C. Humidity increasing

D. Wind speed increasing

Q7Which of the following organelles is surrounded by a double membrane?

A. Lysosome

B. Nucleus

C. Peroxisome

D. Smooth endoplasmic reticulum

Q8The wave of depolarisation across the walls of the atria in the heart is initiated by:

A. Atrioventricular bundle

B. Atrioventricular node

C. Bundle of His

D. Sinoatrial node

Q9Sufferers of DiGeorge syndrome may not develop a thymus gland correctly. Which leucocytes (white blood cells) would be present in lower numbers in these individuals?

A. B lymphocytes

B. Dendritic cells

C. Helper T lymphocytes

D. Macrophages

Q10Titin is the largest known protein and is a component of muscle. In humans the protein is 34,350 amino acids long.What is the minimum length of the human gene for titin?

A. 34,350 bases

B. 68,700 bases

C. 103,050 bases

D. 137,400 bases

BBO竞赛真题的分享就到这里了，对于已经有意向参赛的同学来说，既然花了时间就要拿到好成绩。但BBO不同于常规考试，注重国际课程思维与逻辑能力，这就少不了一个实战经验丰富导师的帮助。唯寻有着众多导师等你来选择哦!

BBO竞赛真题分享来了这些英文版的题目词汇和问题你都能理解吗内容图片_3