Advanced Definitions for ACT Biology
Monocot = flowering plant whose seeds have one embryonic leaf (cotyledon) Dicot = plant with seed with two embryonic leaves (cotyledons)
Cresskill Reading Tutor
Scientific Terms to Know for Standardized Tests
– Peduncle: the stalk of a flower – Receptacle: the part of a flower stalk where the parts of the flower are attached – Sepal: the outer parts of the flower (often green and leaf-like) that enclose a developing bud – Stamen: the pollen producing part of a flower, usually with a slender filament supporting[…]
Facts About the Cell – ACT Science
What is mitosis? Mitosis is the process of cell division. One cell becomes two cells with full chromosomal identity. Stages of mitosis: 1. Prophase 2. Metaphase 3. Anaphase 4. Telephase Cytokinesis begins in anaphase or telephase. Cytokinesis is the division of the cytoplasm into 2 new cells.
DNA Info for Science Section on Standardized Tests
– DNA undergoes transcription to become RNA. RNA undergoes translation to become protein. – Ribosomes contain RNA – Proteins are large molecules with smaller amino acids in them. – The nucleus of a cell contains chromosomes. The chromosomes have DNA wrapped in proteins.
What Are the Types of Electronic Bonds? SAT & ACT
Types of Electronic Bonds 1. Covalent bonds – 2 or more elements share electrons (ex: H2O) 2. Ionic bonds – strongest bonding. One element takes an electron from another molecule (ex: NaCl) 3. Hydrogen bonds – weakest form of bonding. Hydrogen atom interacts with an electronegative atom like nitrogen, oxygen, or fluorine
SAT/ACT Math Practice
Find the value of x: 4x + x + x + x + x − 9 − 3 = 8 + x + x + x
Try out a sample SAT / ACT math problem!
The width of a rectangular floor is w feet. The length of the floor is 8 feet longer than its width. Write expressions for the area and perimeter of the floor in terms of w.
Example Math Problem
z(x) = 5x − 2 h(x) = 2 − 3z(x) What is the value of h(1)?
Practice Some Math!
A block in the shape of a right rectangular prism has dimensions 40 cm by 35 cm by 28 cm. The block has a density of 3.2 grams per cubic centimeter. What is the mass of the block in grams?
SAT & ACT Math Practice
Sample Math Problem If there are 2 hydrogens and 1 oxygen in each molecule of water, how many hydrogens are there in 89 molecules of water?