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Cumulative Exam Life Science 2018 Flashcards | StudBud
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Cumulative Exam Life Science 2018
Cumulative Exam Life Science 2018
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1
In science a hypothesis must be
correct
manipulated
testable
controlled
2
Which of the following statement is part of the cell theory?
All cells are produced from other cells.
cells are only one of the several basic units
Cells can be produced from non living matter.
Only plants are composed of cells.
3
Your brain is a structure composed of different kinds of tissues. What is the structure called?
a tissue
a cell
an organ system
an organ
4
Which organelle is the control center of a cell?
mitochondrion
nucleus
ribosome
chloroplast
5
What captures energy from sunlight during photosynthesis?
solar cells
chloroplasts
stomata
carbohydrates
6
Which of the following best describes the function of mitochondria?
they store energy from sunlight.
They produce nucleic acid that releases energy.
they store energy from food molecules.
they convert energy from food into energy the cell can use.
7
Which of the following is not a way to gain scientific knowledge?
through making models
by making assumptions
through experimentation
through observations
8
In which order does mitosis occur
prophase, anaphase, metaphase, telaphase
prophase, metaphase, anaphase, telophase
telophase, anaphase, metaphase, prophase
metaphase, telophase, anaphase, prophase
9
Which organelle stores food, water and material needed for the cell?
vacuoles
mitochondria
ribosomes
chloroplasts
10
Carbon dioxide is an example of
compound
nucleic acid
element
sugar
11
A well-tested explanation for a wide range of observations or experimental results is called
a hypothesis
a law
an inquiry
a theory
12
To find out why bread left on the table counter eventually molds is an example of
making predictions.
collecting data.
using scientific inquiry
developing a theory.
13
What does the term resolution refer to
how many lenses a microscope uses
how much light is needed to see an image
how large an image can be
how well structures close together can be distinguished
14
Making decisions and drawing conclusions based on evidence uses which kind of thinking?
curious
objective
deductive
subjective
15
Trying to explain why a solar eclipse occurs is an example of
a prediction
an experiment
scientific inquiry
classification
16
Observations that deal with a number or amounts are called?
manipulated observations
operational observations
qualitative observations
quantitative observations
17
The invention of the microscope made it possible for people to discover
animals
plants
cells
skin
18
A variable that purposely changes to test a hypothesis is a(n)
dependent variable
controlled variable
independent variable
observed variable
19
To produce their own food, plants use the abiotic factors sunlight, carbon dioxide, and
water
soil
salt
bacteria
20
Which of these is arranged from smallest to largest level of organization?
atoms, organs, cells, organ systems
atoms, molecules, cells, tissues, organs
organs, tissue, cells, organ systems
molecules, atoms, elements, compounds
21
Using one or more of your senses to gather information is called
inferring
classifying
observing
predicting
22
What is the function of a cell membrane?
to form a hard layer on the cell.
to preform different functions in each cell.
to control which substances enter and leave the cell.
to support the cell
23
What is the products of photosynthesis?
Carbon dioxide and water
oxygen and sugars
oxygen and water
carbon dioxide and sugars
24
Observations that deal with descriptions that cannot be expressed in numbers are called
qualitative observations
relative observations
evidence observations
quantitative observations
25
Unlike the cell wall, the cell membrane
is made of chromatin.
is found in all cells.
produces energy from the cell.
protects the nucleus with rigid layer of cellulose.
26
As plants and animals grow, they
are only part of one nutrient cycle.
use up matter throughout their life cycle.
do not follow conservation laws.
use energy to transform raw materials.
27
Scientific knowledge changes with
repeated experiments
careful reading of facts
new evidence or new interpretations
new magazine articles
28
Interpreting observations based on reasoning from what you already know
classifying
observing
predicting
inferring
29
Which would be the most appropriate tool for modeling a complex system?
a simple equation
pencil and paper
a computer
a calculator
30
Cells in a multi cellular organism
all look the same
are the same size in every part of the organism.
all have the same structures
are specialized
31
Scientists have developed models for the structure of atoms because
atoms are too small to study directly
atoms move to quickly to see
looking at atoms directly can be harmful.
atoms are too far away to study.
32
What is the basic unit of structure and function in a living thing?
a tissue.
an organ system.
a cell.
an organ.
33
Scientists group together items that are alike in some way, they are
inferring
predicting
making models
classifying
34
When you make a possible explanation for a set of observations you are formulating a
law
theory
hypothesis
prediction
35
Spontaneous generation is a mistaken idea because living things
exhibit binomial nomenclature
maintain homeostasis
are produced only by living things
do not reproduce
36
What happens during cellular respiration?
water and carbon dioxide are converted into energy
Glucose is broken down, releasing energy.
Oxygen is released into the air
carbohydrates are released into the bloodstream
37
The basic unit of length in the metric system is the
kilometer
meter
foot
mile
38
The amount of space an object takes up is its
density
mass
length
volume
39
Which of the following is an example of a scientific law?
all objects in the universe attract each other like gravity
All cells are produced by other cells
all substances are composed of tiny objects called atoms
Mass can make energy and energy can be converted to mass
40
Why would a scientist reject a scientific theory?
it covers too broad a topic
it applies everywhere in the known universe
some people disagree with it
new evidence contradicts it
41
Why are line graphs said to be powerful tools?
They give more information than a bar graph
They are easier to make than bar graphs
They can show both numerical and categorical data
They show how different sets of data are related
42
The metric system is based on the number
12
10
1
100
