Advanced Definitions for ACT Biology
Monocot = flowering plant whose seeds have one embryonic leaf (cotyledon) Dicot = plant with seed with two embryonic leaves (cotyledons)
Cliffside Park Tutoring
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[…]
Know the Parts of the Cell
– Cell wall: surrounds/protects cell (only in plant cells) – Cell membrane: controls movement of materials into and out of the cell (active/passive transport) – Cytoplasm: watery area of movement – Mitochondria: produces/supplies energy – Chloroplasts: contain chlorophyll (capture sunlight) [only in plants] – Vacuoles: store food/water/chemicals – Nucleus: regulars.controls cell activities – Nuclear membrane:[…]
The Structure of a Molecule – ACT Prep
The center of an atom is a nucleus. In the nucleus, there are 2 subatomic particles: protons (positive charge) and neutrons (neutral charge). Outside of the nucleus are electrons. The energy of an electron is in shells. An atom is a single nucleus with a positive charge surrounded by a cloud of negatively charged electrons.[…]
SAT/ACT Math Practice
Find the value of x: 4x + x + x + x + x − 9 − 3 = 8 + x + x + x
Math Practice
y > 4x − 2 6x > 15 Find the y-coordinates of all the points that satisfy this system of inequalities.
Systems of Equations Practice
−2x + 3y = −10.5 3x + y = 5 Find the values of x and y.
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?
SAT & ACT Math Practice Problem
On Wednesday, Alan sent x text messages per hour for 6 hours, and Tyler sent y text messages per hour for 3 hours. Write an expression for the total number of messages sent by Alan and Tyler on Wednesday.
Practice Math for Standardized Tests!
What is the sum of (6+2i) + (−9+11i) ?