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