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Duplicate of Midterm Biology
Duplicate of Midterm Biology
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Midterm for Bio
Flashcards
25 cards
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Questions
25
Answers
1
Which of the following statements explains why the nucleus is important to cells?
The nucleus contains coded instructions for making proteins.
The nucleus transports proteins
The nucleus is surrounded by a nuclear envelope.
The nucleus makes ribosomes
2
Which of the following organisms does NOT require sunlight to live?
trees
chemosynthetic bacteria
photosynthetic bacteria
algae
3
Which organelle makes proteins using coded instructions that come from the nucleus?
mitochondria
golgi appartatus
ribosome
vacuole
4
A covalent bond is formed as the result of
sharing a proton pair.
transferring protons.
sharing an electron pair.
transferring electrons.
5
What is an organism that feeds only on plants called?
herbivore
detritivore
carnivorne
omnivore
6
What is the term used to describe the energy needed to get a reaction started?
activation energy
cohesion energy
adhesion energy
chemical energy
7
Which structure contains the other?
nucleus; genetic material
cell membrane; cell wall
nucleus; cytoplasm
prokaryote; organelles
8
Isotopes are atoms of the same element with the same number of protons and
a different number of electrons.
the same number of neutrons.
a different number of molecules.
a different number of neutrons.
9
Enzymes affect the reactions in living cells by changing the
products of the reaction.
speed of the reaction.
temperature of the reaction.
pH of the reaction.
10
Which means of particle transport requires input of energy from the cell?
osmosis
facilitated diffusion
diffusion
active transport
11
Which organelle would you expect to find in plant cells but not animal cells?
chloroplasts
ribosome
mitochondria
smooth ER
12
Biology is the study of ___________.
echoes
physical world
chemicals
life
13
Green plants are
omnivores
consumers
herbivores
producers
14
The nucleus is made up of
protons, neutrons, and electrons.
protons and electrons.
electrons and neutrons.
protons and neutrons.
15
The three particles that make up an atom are
protons, neutrons, and electrons.
neutrons, isotopes, and electrons.
positives, negatives, and electrons.
protons, neutrons, and isotopes.
16
Which of the following organic compounds is the main source of energy for living things?
Nucleic Acids
Lipids
Proteins
Carbohydrates
17
Which of the following contains a nucleus?
eukaryotes
prokaryotes
organelles
bacteria
18
When salt is dissolved in water, water is the
reactant
solute
solution
solvent
19
The thin, flexible barrier around a cell. Allows some items in and out
cell membrane
cytoplasm
cell wall
nucleus
20
Water molecules are polar, with the
oxygen side slightly - and the hydrogen side slightly +.
oxygen and hydrogen sides being slightly positive.
oxygen and hydrogen sides being slightly negative.
oxygen side slightly + and the hydrogen side slightly -
21
Which cell structure contains the cell’s genetic material and controls the cell’s activities?
organelle
cytoplasm
nucleus
cell membrane
22
Diffusion is the movement of molecules from
area of high concentration to an area of low concentration.
an area of equilibrium to an area of high concentration.
area of low concentration to an area of high concentration.
all of these
23
Identify the reactant(s) in the chemical reaction, CO2 + H2O --> H2CO3.
CO2, H2O, and H2CO3
CO2 and H2O
CO2
H2CO3
24
Which of the following organisms are prokaryotes?
animals
bacteria
plants
all of these
25
Which organelles help provide cells with energy?
smooth endoplasmic reticulum
rough endoplasmic reticulum
Golgi apparatus and ribosomes
mitochondria and chloroplasts
