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Biology Midterm
Flashcards
50 cards
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Practice quiz
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Questions
50
Answers
1
Which of the following is a carbohydrate?
Sucrose
DNA
Insulin
Wax
2
The process by where plants make sugar from sunlight?
Krebs cycle
Photosynthesis
Calvin Cycle
Homestasis
3
A molecule with a partial positive charge on one side and negative on the other is called?
bipolar molecule
nonpolar molecule
polar molecule
charged molecule
4
The source of oxygen produced during photosynthesis is?
Chlorophyll
Water
Glucose
Caron dioxide
5
Proteins are made on the?
plasma membranes
ribosomes
mitochondrion
nucleus
6
All organisms are composed of?
protein coat
cells
diatoms
cellulose
7
What substance produced during photosynthesis is used during cellular respiration?
NADPH
Water
ATP
Oxygen
8
What is the process during photosynthesis where glucose is produced from Nadph and ATP called?
Light reactions
Krebs cycle
Electron transport chain
Calvin cycle
9
Acidic solutions have a pH that is?
More than 7
Less than 7
Between 0-14
A negative number
10
Amino acids are monomers of?
nucleotides
steroids
proteins
disaccharides
11
Only eukaryotic cells have?
membrane-bound organelles
ribosomes
DNA
cytoplasm
12
Homeostasis means?
rapid change
same as evolution
staying the same
change over time
13
One important organelle that helps maintain homeostasis by moving supplies?
golgi apparatus
endroplasmic reticulum
lysosome
mitochondrion
14
Lipids are?
protein molecules
nonpolar molecules
similar to water molecules
polar molecules
15
Large molecules get through the cell membrane by?
diffusion
osmosis
lipid carriers
endocytosis
16
Which is not a characteristic of living things?
reproduction
complexity
homeostasis
metabolism
17
In which of the following organelles is a cell's ATP produced?
endoplasmic reticulum
mitochondrion
lysosome
Golgi apparatus
18
Ecology is the study of?
species
cells
organisms and environment
evolution
19
Scientific hypotheses are most often tested by the process of?
experimenting
inferring
communicating
analyzing data
20
What is glycolysis?
Splitting of amino acids
Splitting of ATP
Splitting of water
Splitting of glucose
21
The process of water passing into and out of a cell is called?
solubility
osmosis
endocytosis
selective transport
22
Hooke's discovery of the cell was made observing?
algal cell
plant cells
blood cells
protist cell
23
A substance composed of only one type of atom?
molecule
cell
element
nucleus
24
Lipids are soluable in?
oil
peroxide
water
salt water
25
Heterotrophs are organisms that can?
consume others
survive w/o energy
use photosynthesis
Make food from sunlight
26
Animals store glucose in the form of?
cellulose
glycogen
protein
lipids
27
Enzymes are?
able to absorb heat
biological catalyst
able to heat up molecules
able to provide co2
28
A particularly active cell might contain large numbers of?
chromosomes
pigments
vacuoles
mitochondria
29
What is the original source of energy for life on Earth?
Carbon
Sun
Glucose
Water
30
The dispersal of ink in a beaker of water is an example of?
diffusion
osmosis
endocytosis
active transport
31
Which is a example of a prokaryotic cell?
virus
bacterium
liver
amoeba
32
Biology is the study of?
life
minerals
energy
weather
33
Ridding the cell of material by discharging it from sacs at the cells surface?
phagocytosis
endocytosis
exocytosis
pinocytosis
34
All organic compounds contain the element?
N
Na
Ca
C
35
The electrons of an atom?
are found in the nucleus
are attacted to neutrons
have a positive charge
orbit the nucleus
36
The major atmospheric byproduct of photosynthesis is?
Water
Oxygen
Carbon dioxide
Nitrogen
37
What is the name of the process where sugar is broken down in the absence of oxygen?
Fermentation
Aerobics
Respiration
Oxidation
38
A hypothesis is a?
concluding statement
possible explanation
definite answer
proven statement
39
What is produced when muscles work hard without oxygen?
Alcohol
Lots of ATP
Lactic acid
Vitamin D
40
The structure that regulates what enters and leaves the cell is called the?
cell wall
nucleus
endoplasmic reticulum
plasma membrane
41
The organelles associated with photosynthesis are the?
chloroplasts
vacuoles
mitochondria
golgi apparatus
42
The size to which a cell can grow is limited by its?
surface area
structure
function
location
43
An atom that has gained or lost electrons is called?
nucleon
molecule
Ion
element
44
Diffusion takes place?
only in lipid bilayer
low to high
only in lipids
from high to low
45
A calcium channel will allow what to pass through?
Only Potassium
Any gas
Only calcium
Positive ions
46
Without enzymes, chemical reactions would?
occur to slowly
happen to fast
make no difference
require a different pH
47
A solution with a pH of 11 is?
acidic
a buffer
neutral
alkaline
48
A unifying explanation is a?
theory
hypothesis
guess
prediction
49
Polysaccharides are?
carbohydrates
proteins
unsaturated fats
lipids
50
All of the following are found in both plant and animal cells, except?
endoplasmic reticulum
plasma membrane
mitochondria
cell wall
