2nd Semester Review

0Which of the following is not found in animal cells?0 A. Golgi bodies0 B. chloroplast0 C. lysosome0 D. Mitochondria

0Lysosomes are organelles that contain ________________ to break down food and cell waste. 0 A. bacteria 0 B. cellular molecules0 C. digestive enzymes0 D. viruses

0What are the structures in the cytoplasm of a cell called?0 A. organs0 B. organelles0 C. organ systems0 D. tissues

0A __________________ is the smallest unit of an organism that carries out the functions of life. 0 A. atom0 B. molecule0 C. cell0 D. tissue

0Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis? 0 A. two stages of cell division0 B. replication of cellular genetic material0 C. daughter cells that are identical to the parent cell0 D. four daughter cells that are produced from each

parent cell

0Which of the following phases of mitosis is represented by the diagram at the botton? ?

0A.prophase B. metaphase C. anaphase D. telephase

0The twisted shape of DNA is called a0a. double ladder 0b. double helix0 c. nucleotide0d. base pair.

0Blue flowers (B) are dominant. Green flowers (b) are recessive. If a male blue flower plant with genotype Bb is crossed with a female blue flower plant with genotype Bb, what is the percent chance that they will have a green flower offspring.

0a. 0% b. 25% c. 50% d. 75%

0An abnormal condition that a person inherits through genes or chromosomes is a

0a. pedigree.0b. gene therapy.0 c. genetic disorder0 . d. genetic chromosome

0Phenotype is the0a. physical characteristics0b. alleles that make up the gene 0 c. dominant genes

0The chart showing classifications of elements according to their properties and increasing atomic numbers is called

0a. element table 0b. periodic table0 c. group table

0Which feature on the Periodic Table is used to identify an element?

0a. atomic mass 0b. charge0 c. group0d. atomic number

0True or False? The horizontal rows are called groups and the vertical rows are called periods.

0Substances with a pH higher than 7 are __________________.

0a. acids b. bases c. neutral d. radicals

0AB → A + B is an example of which kind of reaction?0a. Synthesis0b. Decomposition 0 c. Exchange

0 . Which scientist invented the periodic table?0a. Gregor Mendel0b. Watson and Crick 0 c. Albert Einstein0d. Dimitri Mendeleev

0The distance and direction from a starting point to an ending point is defined as _____________________.0Distance0Displacement0Velocity0Acceleration

0Unequal forces that do not cancel each other out wen acting on an object. It causes a change in the objects motion. 0Balanced Force0Gravitational Force0Unbalanced Force0Velocity

0 ________________ Equals the distance traveled divided by the time needed to travel that distance. 0Acceleration 0Force0Speed0Displacement

0The force between two surfaces in contact that resists the sliding of the surfaces past each other is called ____________________.0Friction0Gravitational Force0Acceleration0Displacement

0A doorknob, pencil sharpener, and automobile are examples of what type of machine?

0a. Wheel and axle0b. pulley 0 c. inclined plane0d. wedge

0 ______A crowbar is an example of what type of machine?

0a. Pulley b. wedge c. inclined plane d. lever

0 ______An ax and a knife are examples of what type of machine?

0a. Screw b. Wheel and axle c. Lever d. Wedge

0 ______A water well is an example of what type of machine?

0a. Inclined plane b. Lever c. Pulley d. Screw

0Static electricity is 0An imbalance of positive and negative charged

atoms0A build up of electrical charges on an object0Electricity that flows through wire from 1 place to

another0None of the above

0 In a parallel circuit with multiple bulbs, if you unscrew one bulb, ____________.0All of the bulbs would go out0None of the bulbs would go out0That one bulb would go out

0This type of wave vibrates in a perpendicular direction.0Transverse0b. Longitudinal0 c. Water0d. Electrical

0The distance between two crests is called __________.0 a. Amplitude b. Wavelength c.

Frequency

0The displacement of a wave is called ___________.0 a. Amplitude0b. Displacement0 c. Frequency0d. Wavelength

0 . Short EM waves, like gamma waves, have decreased wavelength and _____________ frequency.

0 a. increased0b. decreased0 c. the same0d. none of the above

0As the energy increases, the wavelength ______________0 a. increases0b. decreases0 c. stays the same0d. none of the above