act科学词汇与知识点.pdfVIP

ACT 科学词汇与知识 Prepared by Manhattan English 曼哈顿英语教学中心地址：上海静安区愚园路309 号紫安大厦606 室（图A 位，2、7 号线静安寺站） 1. An electrical device that directly converts the energy of light into electrical energy- Solar cell 2. A device that makes things appear larger than they really are- microscope. 3. A few organelles of a living cell are Nucleus, mitochondrion, chloroplast, endoplasmic reticulam and so on. 4. A fruit that is developed from one ovary is a simple fruit. 5. A gelatinous product of red algae used in growth media for microorganisms and in tissue culture agar. 6. An organ attaches to the rectum of cephalopods that secrets and ejects an ink like liquid is termed as - ink sac. 7. The plant secondary metabolites that appear in yellow, commonly known for their antioxidant activity in vitro are the - Flavonoids. 8. A group of similar cells that work together to perform a specific function- tissues. 9. A peptide hormone secreted by glands in the mucous membrane of the stomach that stimulates the secretion of gastric acid - gastrin. 10. A magnifying glass is a convex lens which is used to produce a magnified image. 11. A neutron has no net electric charge. 12. A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission. 13. A pair of bracts at the base of a spikelet seen in grass flower are the glumes. 14. A person who studies about the rocks- A geologist. 15. A person who studies biology is known as a biologist. 16. A pine cone shaped gland of the endocrine system that produces the melatonin hormone, located in between the cerebral hemisphere of the brain.- Pineal gland 17. A plant moves or grows in response to touch that leads to unequal growth. E.g the coiling of tendrils around a stick- Thigmotropism. 18. A plant that has its own polle