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Biology Midterm Flashcards | StudBud
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Biology Midterm
Biology Midterm
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Biology study guide
Flashcards
45 cards
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Practice quiz
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Questions
45
Answers
1
How does carbon dioxide affect the production of sugar (glucose) in plants?
plants need carbon dioxide for photosynthesis to make sugar
carbon dioxide lowers the production of sugar in plants
carbon dioxide is released from a plant after photosynthesis
plants don't need carbon dioxide, they need oxygen
2
If a pea plant's alleles for height are
tt,
what is true of its parents?
Both parents were short.
Both parents were tall.
Both parents contributed a dominant allele.
Both parents contributed a recessive allele.
3
An advantage of sexual reproduction is...
requires more time
provides more genetic diversity
takes less time
produces identical offspring
4
Which of the following is NOT a characteristic of all living things?
growth and development
response to the environment
ability to reproduce
ability to move
5
Plants gather the sun's energy using...
glucose
thylakoids
chloroplasts
pigments
6
What happens when the data in an investigation does not support the original hypothesis?
the scientist gives up
the hypothesis is revised
the data is altered to support the original hypothesis
the data must be incorrect and thrown out
7
Which is a function of the cell membrane?
stores water, salt, proteins and carbohydrates
keep the cell wall in place
regulates the movement of materials into and out of the cell
breaks down lipids, carbohydrates, and proteins from food
8
Who used a compound microscope to see chambers within cork and named them "cells"?
Matthias Schleiden
Rudolf Virchow
Anton Van Leeuwenhoek
Robert Hooke
9
What can happen if cancer cells are left untreated?
can prevent organs from performing properly
can absorb nutrients needed by other cells
can block nerve connections
all of the above
10
How do scientists communicate with the results of investigations?
e-mails
scientific journals
giving talks at science conferences
all of the above
11
Looking at a cell under a microscope, you know the cell is prokaryotic because...
the cell lacks genetic material
The cell lacks cytoplasm.
the cell lacks a cell membrane
the cell lacks a nucleus
12
Choose the letters on the right for
cell membrane, Golgi, mitochondrion, cytoplasm, ribosome
H, I, F, C, B
I, C, F, B, H
C, B, E, A, D
B, C, I, A, G
13
What happens during photosynthesis?
Heterotrophs produce ATP.
Autotrophs consume carbohydrates.
Heterotrophs consume ATP.
Autotrophs produce carbohydrates.
14
If a pea plant has a recessive allele for green peas (y), it will produce...
both green peas & yellow peas if it has dominant allele (Y)
yellow peas if no dominant allele for green peas
green peas if it also has a dominant allele for yellow peas
green peas if no dominant allele for yellow peas
15
Which is found in a eukaryotic cell but not a prokaryotic cell?
chromatin
ribosomes
mitochondrion
nucleus
16
Compare the 2 experimental set-ups. What factor is the student varying? What is he/she testing
Carbon dioxide; how adding or taking it away affects plants
water; how CO2 takes away water
Soil; how the glass affects soil health
Oxygen; how it affects plants
17
Which sequence correctly traces the path of a protein in the cell?
ribosome, endoplasmic reticulum, chloroplast
ribosome, endoplasmic reticulum (ER), Golgi apparatus
ER, lysosome, Golgi
ribosome, Golgi, ER
18
Looking at the picture, why do animals need green plants?
animals can only eat plants
green plants protect animals
they are pretty
green plants give off oxygen
19
If Plant A was put in direct sunlight for 2 days, how would photosynthesis compare to Plant B?
Plant A rate of photosynthesis would be greater than Plant B
Plant A rate of photosynthesis would be less than Plant B
Plant B rate of photosynthesis would be the same as Plant A
Photosynthesis would suddenly stop in Plant A
20
This graph is used to show how a part of something relates to the whole.
circle graph
line graph
bar graph
direct proportion
21
During normal mitosis, a parent cell that has 4 chromosomes will produce 2 daughter cells with
4 chromosomes
8 chromosomes
16 chromosomes
2 chromosomes
22
Damaged _______ genes cause cells to lose the information for the signal to control cell growth
p53
lymph
blue
male
23
Which event occurs during interphase?
Centromeres divide.
Centrioles duplicate (cell growth).
Spindle fibers begin to form.
The cytoplasm divides.
24
In the Punnett square shown, which is true about the offspring resulting from the cross?
About half will be short.
About 3/4 will be tall.
All will be short.
All will be tall.
25
The cells of unicellular (single-celled) organisms are...
larger than those of multicellular organisms.
unable to respond to changes in their environment.
specialized to perform different tasks.
able to carry out all functions necessary for life
26
Which is a function of the cell wall?
stores water, salt, proteins and carbohydrates
regulates the movement of materials into and out of the cell
breaks down lipids, carbohydrates and proteins from food
gives the plant cell structure to stand up
27
Choose the letters on the left for
rough ER, nucleus, smooth ER
,
chromosomes
,in that order.
H, I,D, G
A, E, G, D
H, D, B, C
D, E, A, G
28
If a scientist proposes a new hypothesis about a new virus, other researchers would likely...
change the hypothesis to fit their own data
design new experiments to test the hypothesis
assume the hypothesis is true for all viruses
reject the hypothesis immediately
29
Identify the number that represents the cell organelle that stores minerals and water.
5 (cell membrane)
1 (nucleus)
7 (chloroplast)
6 (vacuole)
30
If 2 parents are homozygous recessive for a trait, how many offspring are homozygous recessive?
all
half
none
3/4
31
Which is an example of a safe laboratory procedure?
testing an odor by directly inhaling the vapor
eating or drinking from lab glassware
tying back long hair and loose clothing
touching hot objects with bare hands
32
Why might the candle in Jar A burn longer than the candle in Jar B?
Carbon dioxide from plant allows candle to burn longer
glucose from plant allows candle to burn longer
oxygen from plant allows candle to burn longer
chlorophyll from plant allows candle to burn longer
33
Which step of the scientific method is obtained through the senses?
drawing conclusions
revising a hypothesis
analyzing data
making observations
34
What is happening in this picture?
asexual reproduction
cancer cells growing out of control
normal mitosis
photosynthesis
35
Which is NOT a pure substance?
milk (water + fat + minerals)
oxygen
carbon dioxide
water
36
Gametes have...
twice the number of chromosomes found in body cells.
one allele for each gene.
2 sets of chromosomes.
homologous chromosomes.
37
Photosynthesis uses sunlight to convert water and carbon dioxide into...
sugar and oxygen.
alcohol and sugar
oxygen and alcohol
nitrogen and sugar
38
Why are scientific models important?
they make it harder to understand things
they help see things that are very small, large or complex
they never change
they prove scientific theories
39
Which one is NOT a statement from the cell theory?
all living things are composed of cells
all cells are eukaryotic
new cells are produced from existing cells
cells are the basic unit of life
40
When do chromosomes become visible during the cell cycle (mitosis)?
G1 phase
prophase
interphase
cytokinesis
41
If an unknown substance CANNOT be broken down into simpler substances, it is...
an element
both 2 & 3
made of only one kind of atom
a compound
42
Which of the following is found in the nucleus?
Golgi apparatus
mitochondrion
DNA
ribosomes
43
A well-tested explanation that explains a lot of observations is...
a theory
a controlled experiment
a hypothesis
an inference
44
From the same experiment, suggest an appropriate control for the experiment?
A glass jar with a timer
A glass jar containing just a plant
A plant in water instead of soil
A glass jar in the dark with no plant
45
In the diagram, what role does structure A play in mitosis?
connect to spindle fibers.
increase cell volume.
dissolve nuclear envelope.
replicate DNA.
