During photosynthesis, the series of reactions that create complex carbohydrates needed for energy and growth are called

the light independent reactions (Calvin cycle).

a testable possible explanation of an observation.

Diffusion takes place

from an area of high concentration to an area of low concentration.

Placing an animal cell in a hypotonic solution will

cause the cell to swell as water moves in.

Surface area is an important factor in limiting cell growth because

the cell may become too large to take in enough food and to remove wastes.

Which of the following is the correct order of organization in living things, from simple to complex?

cells, tissues, organs, organ systems

is essential for a cell to perform all the tasks necessary for life.

Cellular respiration takes place in two stages:

glycolysis, then aerobic respiration.

Placing a red blood cell into a hypertonic environment will

cause the red blood cell to shrink as water moves out.

The process of cellular respiration

breaks down food molecules to release stored energy.

This graph demonstrates that the rate of photosynthesis

increases in response to light intensity, but only to a certain point.

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Questions 43

Answers

1
Carbon is different from many other elements in that
it has four electrons in its outermost energy level.
all of the above.
it readily bonds with other carbon atoms.
it can form single, double, or triple bonds with other atoms.
2
The smallest unit that can carry on all the functions of life are called
organelles.
cells.
species.
molecules.
3
During photosynthesis, the series of reactions that create complex carbohydrates needed for energy and growth are called
the light reactions.
the light independent reactions (Calvin cycle).
photosystems I and II.
the citric acid cycle (Krebs cycle).
4
Which of the following does not expend energy?
a sodium-potassium pump
active transport
diffusion
endocytosis
5
A hypothesis is
a concluding statement.
a proven statement.
a testable possible explanation of an observation.
a definite answer to a given problem.
6
Proteins are made on the
plasma membrane.
ribosomes.
nucleus.
mitochondria.
7
Long chains of amino acids are found in
proteins.
carbohydrates.
lipids.
sugars.
8
Diffusion takes place
from an area of high concentration to an area of low concentration.
from an area of low concentration to an area of high concentration.
only in liquids.
only through a lipid bilayer membrane.
9
Which of the following is not an example of good laboratory practice?
washing water glassware before use
working alone in lab
asking permission before using equipment
wearing goggles in the lab
10
Nucleic acids include
glucose and glycogen.
DNA and RNA.
lipids and sugars.
chlorophyll and retinal.
11
When glycolysis occurs,
two molecules of pyruvic acid are made.
all of the above.
some ATP is produced.
a molecule of glucose is split.
12
Products of the light reactions of photosynthesis that provide energy for the Calvin cycle are
ATP and NADPH.
water and oxygen.
oxygen and ATP.
oxygen and NADPH.
13
In which of the following organelles is a cell's ATP produced?
lysosome
endoplasmic reticulum
mitochondria
Golgi apparatus
14
All matter in the universe is composed of
cells.
atoms.
molecules.
carbon.
15
Which of the following is a carbohydrate?
insulin
glucose
DNA
wax
16
Which of the following characteristics of water is a result of hydrogen bonding?
all of the above
adhesive strength
cohesive strength
capillarity
17
One difference between prokaryotes and eukaryotes is that
mitochondria are found in larger quantities in eukaryotes.
nucleic acids are found only in prokaryotes.
the Golgi apparatus is found only in prokaryotes.
prokaryotes have no nucleus.
18
Which of the following is a characteristic of all living things?
movement
cellular organization
photosynthesis
contain a nucleus
19
Lipids are
similar to water molecules.
polar molecules.
nonpolar molecules.
protein molecules.
20
Placing an animal cell in a hypotonic solution will
cause the cell to shrink as water moves out.
none of the above.
have no effect on the cell.
cause the cell to swell as water moves in.
21
With oxygen present, the Krebs cycle and the electron transport chain
produce most of the ATP needed for life.
break down glucose to produce carbon dioxide, water, and ATP.
all of the above.
provide organisms an alternative to glycolysis.
22
The plasma membrane
all of the above.
encloses the contents of a cell.
allows materials to enter and leave the cell.
is selectively permeable.
23
Surface area is an important factor in limiting cell growth because
materials cannot enter the cell if the surface is too large.
waste products cannot leave the cell if it's too small.
the cell can burst if the membrane becomes too large.
the cell may become too large to take in enough food and to remove wastes.
24
Jack wonders what effect fertilizer has on plant growth. The dependent variable is
what kinds of plants are grown.
fertilizer.
plant growth.
how much the plants are watered.
25
Photosynthesis takes place within a
ribosome.
mitochondria.
Golgi apparatus.
chloroplast.
26
The name of the process that takes place when organic compounds are broken down in the absence of oxygen is
oxidation.
all of the above.
fermentation.
respiration.
27
Molecules that are too large to be moved through the membrane can be transported into the cell by
endocytosis.
osmosis.
diffusion.
lipid carriers.
28
The graph below depicts a(n) _________ reaction.
none of these
exergonic
endergonic
explosive
29
Which of the following is the correct order of organization in living things, from simple to complex?
tissues, cells, organs, organ systems
cells, tissues, organs, organ systems
cells, tissues, organ systems, organs
organ systems, organs, tissues, cells
30
ATP
contains 5 phosphate groups.
is found only in bacteria.
all of the above.
is essential for a cell to perform all the tasks necessary for life.
31
The process whereby plants capture radiant energy and converts it to chemical energy in the form of organic compounds is
evolution.
homeostasis.
development.
photosynthesis.
32
Cellular respiration takes place in two stages:
glycolysis, then aerobic respiration.
glycolysis and fermentation.
stage 1 and stage 2 of photosynthesis.
aerobic respiration, then fermentation.
33
Enzymes
are able to heat up molecules so that they can react.
provide CO2 for chemical reactions.
absorb excess heat so that reactions occur at low temperatures.
are biological catalysts.
34
Biology is the study of
minerals.
the weather.
energy.
life.
35
All living things maintain a balanced set of internal conditions within their cells through the process of
growth.
development.
homeostasis.
evolution.
36
Placing a red blood cell into a hypertonic environment will
cause the red blood cell to swell as water moves in.
none of the above.
cause the red blood cell to shrink as water moves out.
have no effect on the red blood cell.
37
The process of cellular respiration
is performed only by organisms that are incapable of photosynthesis.
occurs only in animals.
breaks down food molecules to release stored energy.
occurs before plants are able to carry out photosynthesis.
38
The role of chlorophyll in photosynthesis is to
pass electrons to carotenoids.
split water molecules.
absorb light energy.
all of the above.
39
Atoms are composed of
protons with a positive charge.
all of the above.
electrons with a negative charge.
neutrons with no charge.
40
All organic compounds contain the element
nitrogen.
carbon.
sulfur.
calcium.
41
The major atmospheric byproduct of photosynthesis is
water.
carbon dioxide.
nitrogen.
oxygen.
42
The process by which water passes into or out of a cell is called
selective transport.
solubility.
endocytosis.
osmosis.
43
This graph demonstrates that the rate of photosynthesis
is unaffected by changes in light intensity.
increases in response to light intensity, but only to a certain point.
decreases in response to increasing light intensity.
increases indefinitely in response to increasing light intensity.

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