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Semester 1 Final Exam Review 2018

Total questions: 50

Worksheet time: 2hrs 34mins

Name
Class
Date
1.
What is the part of the experiment that is left alone or “natural", and is used to compare back to?
a)
Independent Variable
b)
Dependent Variable
c)
Control Group
d)
Experimental Group 
2.
You will want your experiment to have ____ independent variable(s) in it for the experiment to be valid.
a)
1
b)
2
c)
3
d)
4
3.
What is a factor that the experimenter has full control over and changes to see what happens?
a)
Dependent Variable
b)
Independent Variable
c)
Control group 
d)
Hypothesis
4.
What skill is a scientist using when she listens to the sounds that an elephant makes?
a)
drawing conclusions
b)
making observations
c)
interpreting data
d)
making a hypothesis
5.
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
a)
the size of the baby alligators
b)
the gender of the baby alligators
c)
the incubator
d)
the temperature
6.

The yucca plant releases a strong scent at night when the yucca moth is active. The yucca moth, attracted by the scent, gathers pollen from the yucca flower. The yucca moth then deposits her eggs and the pollen on the another plant. This ensures that the plant will be cross-pollinated and that the yucca moth larvae have a steady food supply. Which relationship does this best illustrate?

a)

commensalism

b)

mutualism

c)

parasitism

d)

predation

7.

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

a)

competition

b)

mutualism

c)

parasitism

d)

predator-prey

8.
Ecosystems are made up of....
a)
Living things only
b)
Living and non-living things
c)
air and nutrients only
d)
dust particles
9.

In an ecosystem the producers

a)

use sunlight to make food

b)

break down dead organisms

c)

eat the food

d)

create a food web

10.
All of the living AND non-living things in an particular area is called a(n):
a)
ecosystem
b)
house
c)
community
d)
mountain
11.
Many animals have fur that helps them to camouflage with their surroundings.  This is an example of 
a)
Population changes
b)
Adaptations
c)
Keystone species
d)
Biodiversity
12.
Abiotic factors are environmental factors that are NOT associated with
a)
the activities of living organisms
b)
temperature of the environment
c)
the type of soil in a biome
d)
the salinity of the ocean
13.
An example of a population is
a)
All the field mice in a field
b)
The mice, owls and oak trees in a forest
c)
All the trees, animals, soil, sunlight and water in a biome
d)
All the people and pets at a dog show
14.

An example of a community is

a)

All the frogs, tadpoles and lily pads in a pond

b)

All the frogs, tadpoles, lily pads, sunlight, wind and temperature of the pond.

c)

All the water, mud, a certain temperature and certain amount of sunlight in a pond

15.
Study of interactions between organisms and their environment 
a)
niche
b)
community 
c)
ecology
d)
ecosystem
16.
Choose the correct order of organization from smallest to largest
a)
Species--> Population--> Community--> Ecosystem-->Biosphere
b)
Community--> Species--> Population--> Biosphere --> Ecosystem
c)
Ecosystem--> Community--> Species--> Population--> Biosphere 
d)
Population-->Species--> Community--> Ecosystem-->Biosphere
17.
What is the main function of nucleic acids?
a)
To function in insulation.
b)
To store and transmit hereditary information.
c)
To provide energy
18.
Water is polar and oil is nonpolar.
a)
True
b)
False
19.
What are the monomers of carbohydrates?
a)
Amino acids
b)
Fatty acids
c)
Nucleotides
d)
Monosaccharides (simple sugars)
20.
Most enzymes — 
a)
Speed up the chemical reaction
b)
Have no effect on the rate of the chemical reaction 
c)
Keep the rate of the chemical reaction the same
d)
Slow the rate of the chemical reaction 
21.
Enzymes _____ the activation energy of a reaction by binding a substrate and holding it in a way that lowers the activation energy.
a)
Lower
b)
Raise
c)
Maintain
22.
Most enzymes in with the suffix --
a)
-yme
b)
-gen
c)
-nic
d)
-ase
23.

Living and nonliving things made of tiny units of matter called __________.

a)

cells

b)

atoms

c)

iron

d)

insects

24.

An element is ___________________________

a)

a substance made of two or more kinds of atoms

b)

any liquid

c)

A substance made entirely of one kind of atom

d)

any gas found in the atmosphere

25.

When two or more different elements are connected by a chemical bond a ______________ is formed

a)

compound

b)

element

c)

atom

d)

cell

26.

DNA and RNA are two kinds of

a)

nucleic acids

b)

atoms

c)

cells

d)

elements

27.

The function of the cell membrane is _____________________

a)

“Control Center.” Regulates DNA & RNA actions.

b)

Makes proteins.

c)

Regulates materials entering and exiting the cell

d)

Produce energy for the cell – site of cellular respiration.

28.

A Gummi bear becoming bigger after soaking in water is an example of

a)

magic

b)

dehydratation

c)

diffusion

d)

osmosis

29.

A low solute concentration compared to the solvent concentration is

a)

osmosis

b)

hypotonic

c)

diffusion

d)

hypertonic

30.

Hypertonic is

a)

high solute concentration compared to solvent

b)

osmosis

c)

diffusion

d)

a low solute concentration compared to a solvent

31.

A phospholipid contains

a)

non-polar heads and polar tails

b)

gold

c)

sharp teeth

d)

polar heads and non-polar tails

32.

Which pair of definitions is correct

a)

Hydrophobic is water fearing and Hydrophilic is water loving

b)

Hydrophobic is water loving and Hydrophilic is water fearing

c)

Hydrophobic is a fear of fire and Hydrophilic is a love of fire

d)

Hydrophobic is fat water drops and Hydrophilic is skinny water drops

33.

Where is the DNA found in a PROKARYOTIC cell?

a)

floating around in the cytoplasm

b)

in the nucleus

34.

What type of cell has a true nucleus?

a)

eukaryotic

b)

prokaryotic

35.
Under a microscope, what kind of cells lack membrane-bound internal organelles?
a)
Prokaryotes
b)
Eukaryotes
c)
Plants
d)
Animals
36.

The picture illustrates a (Look closely at picture)

a)

Prokaryotic Plant Cell

b)

Prokaryotic Animal Cell

c)

Eukaryotic Plant Cell

d)

Eukaryotic Animal Cell

37.

Releases energy for cells to use, most common in animal cells

a)

mitochondria

b)

ribosomes

c)

lysosomes

d)

nucleolus

38.
Amino acids link together to form proteins. In which organelle would this process occur?
a)
Lysosome
b)
Ribosome
c)
Centriole
d)
Mitochondria
39.

Packages proteins for delivery

a)

endoplasmic reticulum

b)

ribosomes

c)

Golgi apparatus

d)

lysosomes

40.

Break down (digest) worn out cell parts, mostly in animal cells

a)

cytoplasm

b)

lysosomes

c)

mitochondria

d)

vacuoles

41.

Jello-like material, fills the space between cell organelles, is where many chemical reactions occur

a)

cytoplasm

b)

chromatin

c)

chloroplast

d)

cell membrane

42.
Transportation network for the cell, moves materials around in the cell
a)
Lysosome
b)
Nuclear Membrane
c)
Endoplasmic Reticulum
d)
Centriole
43.
What am I?
a)
vacuole
b)
ribosome
c)
endoplasmic reticulum
d)
golgi apparatus
44.
Movement of particles from high to low concentration. 
a)
Passive Transport
b)
Active Transport
45.
a)
Passive Transport
b)
Active Transport
46.
Movement of materials from high to low concentration through a protein channel. 
a)
Passive Transport
b)
Active Transport
47.
Solutes move against the concentration gradient, therefore energy is needed. 
a)
Passive Transport
b)
Active Transport
48.
In this image, the cell is using which type of molecular transport?
a)
Osmosis
b)
Diffusion 
c)
Endocytosis
d)
Exocytosis 
49.
This picture represents which type of cellular transport?
a)
passive transport
b)
endocytosis
c)
exocytosis
d)
osmosis
50.
The sodium potassium pump usually pumps
a)
potassium out of the cell 
b)
sodium out of the cell 
c)
sodium into the cell 
d)
both potassium and sodium into the cell 

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