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Worksheetssemester exam// science
Total questions: 101
Worksheet time: 51mins
Name
Class
Date
1.
the maintenance of a stable and internal environment
a)
homeostasis
b)
heterotrophs
c)
biome
d)
community
2.
condensed chromatin
a)
chloroplast
b)
chromatin
c)
chromosome
d)
organism
3.
condensed chromatin
a)
chloroplast
b)
chromatin
c)
chromosome
d)
organism
4.
organisms that use sunlight to make food by photosynthesis (producers)
a)
decomposers
b)
heterotrophs
c)
autographs
d)
cells
5.
the basic building blocks of life; simplest level of organization
a)
meiosis
b)
homologous chromosomes
c)
centrolie
d)
cells
6.
chromosomes that have the same sequence of genes and the same structure
a)
centriole
b)
homologous chromosomes
c)
meiosis
d)
autographs
7.
a process in cell division during which the number of chromosomes decrease to one half the original number by 2 divisions of the nucleus which result in the production of 4 haploid sex cells
a)
mitosis
b)
meiosis
c)
cellular respiration
d)
population
8.
the process that cells use oxygen to release energy stored in water
a)
homeostasis
b)
heredity
c)
energy pyramid
d)
cellular respiration
9.
a membrane - covered structure that contains all of the materials necessary for life
a)
stimulus
b)
cell
c)
biosphere
d)
chromosome
10.
a change that affects the activity or an organism
a)
heredity
b)
stimulus
c)
cellular respiration
d)
metabolism
11.
two parents produce offspring that share characteristics of both parents
a)
sexual reproduction
b)
cell wall
c)
cell membrane
d)
biome
12.
the maintenance of a stable internal environment
a)
homeostasis
b)
autographs
c)
energy pyramid
d)
ribosomes
13.
a single parent produces offspring that are identical to the parent
a)
asexual reproduction
b)
sexual reproduction
c)
clone
d)
genetic
14.
the passing of traits from parents to offspring
a)
heredity
b)
gene
c)
tissue
d)
cells
15.
the total of all the chemical activities that an organism performs
a)
cell
b)
metabolism
c)
diffusion
d)
chlorophyll
16.
a diagram that shows and ecosystems loss of energy
a)
heredity
b)
homeostasis
c)
energy pyramid
d)
centriole
17.
organisms that eat each other (consumers)
a)
scavengers
b)
carnivores
c)
heterotrophs
d)
herbivores
18.
eats only plants
a)
community
b)
herbivores
c)
scavengers
d)
omnivores
19.
eats only animals
a)
carnivores
b)
decomposers
c)
biome
d)
scavengers
20.
eats both plants and animals
a)
herbivores
b)
omnivores
c)
carnivores
d)
population
21.
eats dead plants and animals
a)
cellular respiration
b)
community
c)
omnivores
d)
scavangers
22.
eats dead plants and animals
a)
abiotic
b)
cell
c)
decomposers
d)
biotic
23.
the study of how organisms interact with other orginisms and their enviroment
a)
ecology
b)
fertilization
c)
gamete
d)
biome
24.
a group of organisms of the same species that live together
a)
population
b)
community
c)
ecology
d)
biome
25.
all of the biotic factors in an area
a)
population
b)
scavengers
c)
community
d)
ecosystem
26.
the biotic and antibiotic factors in a certain environment
a)
ecosystem
b)
ecology
c)
biome
d)
heterotrophs
27.
a group of ecosystems that have similar biotic and abiotic factors
a)
biosphere
b)
ecology
c)
biome
d)
community
28.
the part of earth where life exists
a)
population
b)
community
c)
biome
d)
biosphere
29.
movement of materials across the cell membrane without using energy
a)
passive transport
b)
active transport
c)
diffusion
d)
cells
30.
movement of materials across the cell membrane that requires energy
a)
passive transport
b)
active transport
c)
photosynthesis
d)
tissue
31.
movement of materials from an area where they are crowded to where they aren't crowded
a)
diffusion
b)
biome
c)
community
d)
cellular respiration
32.
the diffusion of water
a)
ribosome
b)
osmosis
c)
cells
d)
tissue
33.
the process that cells use oxygen to release energy stored in sugar
a)
photosynthesis
b)
osmosis
c)
cellular respiration
d)
cells
34.
process where chloroplasts change energy from the sun
a)
photosynthesis
b)
chlorophyll
c)
diffusion
d)
active transport
35.
light absorbing pigment that traps energy in sunlight
a)
cellular respiration
b)
chlorophyll
c)
photosynthesis
d)
diffusion
36.
the basic building blocks of life; simplest level of organization
a)
cells
b)
tissue
c)
organ
d)
osmosis
37.
made up of many cells
a)
organ
b)
cells
c)
tissue
d)
organells
38.
a group of tissues
a)
organ
b)
cells
c)
tissue
d)
organell
39.
a group of organs
a)
cells
b)
tissue
c)
organ systems
d)
organelle
40.
a single living thing made up of organ cells
a)
organ
b)
mitosis
c)
ribosomes
d)
organism
41.
tiny structures that preform specific processes that keep cells alive
a)
organelles
b)
organ system
c)
tissue
d)
ribosomes
42.
gelatin like substance that suu
a)
chlorophyll
b)
stimulus
c)
cytoplasm
d)
autographs
43.
use instructions from dna to make protiens
a)
rough endoplasmic
b)
ribosomes
c)
cell
d)
gametes
44.
control center of cell; contains DNA that controls all the cells activities
a)
organism
b)
organelle
c)
ribosome
d)
nucleus
45.
powerhouse of cell; cellular respiration occurs here to get energy from food
a)
mitochondria
b)
meiosis
c)
nucleus
d)
lysosome
46.
digests bacteria and worn out
a)
vacuole
b)
ribosomes
c)
lysosome
d)
chloroplast
47.
stores water, wastes and other materials in the cell
a)
cell membrane
b)
vacuole
c)
cytoplasm
d)
organelle
48.
covering of the cell, keeps organelles inside
a)
cell membrane
b)
vacuole
c)
ribosome
d)
organ
49.
packages material to be moved in and out of the cell
a)
cell wall
b)
rough endoplasmic
c)
Golgi complex
d)
chloroplast
50.
moves materials around the cell (with ribosomes)
a)
smooth endoplasmic reticulum
b)
rough endoplasmic reticulum
c)
cell wall
d)
tissue
51.
moves materials around the cell (without ribosomes)
a)
rough endoplasmic reticulum
b)
smooth endoplasmic reticulum
c)
Golgi complex
d)
chloroplast
52.
provides the plant cell with shape and support
a)
stimulus
b)
organelle
c)
tissue
d)
cell wall
53.
contain chlorophyll which makes the cell green; where photo
a)
chloroplast
b)
chlorophyll
c)
cell wall
d)
autograp
54.
dna inside the nucleous
a)
rna
b)
chlorophyll
c)
chromatin
55.
condensed chromatin
a)
chromosome
b)
haploid
c)
chromatid
d)
dna
56.
one member of a pair of copied chromosomes
a)
centrolie
b)
sister chromatids
c)
omnivore
d)
haploid
57.
proteins that hold together sister chromatids at the center of the chromosome
a)
centromere
b)
chromatin
c)
herbivore
d)
gamete
58.
organelles responsible for moving spindle fibers and helping to control cell division
a)
egg
b)
heterotrophs
c)
diploid
d)
centrolie
59.
proteins that move chromosomes during cell division
a)
mitosis
b)
spindle fibers
c)
meiosis
d)
fertiization
60.
a type of asexual reproduction in which the nucleus divides and makes a copy of itself
a)
mitosis
b)
meiosis
c)
ribosomes
d)
haploid
61.
sperm/egg cell (haploid)
a)
cell
b)
fertilization
c)
diploid
d)
gamete
62.
male sex cell
a)
sperm
b)
egg
c)
haploid
d)
diploid
63.
female sex cell
a)
sperm
b)
egg
c)
haploid
d)
diploid
64.
when male and female sex cells combine together to make a new cell
a)
spindle fibers
b)
chromatin
c)
fertilization
65.
a process in cell division during which the number of chromosomes decrease to one half the original number by two divisions of the nucleus which result in the production of four haploid sex cells
a)
mitosis
b)
sperm
c)
meiosis
d)
diploid
66.
gametes have one half the normal number of chromosomes- only one member from the pair
a)
gamete
b)
egg
c)
diploid
d)
haploid
67.
body cells have the full number of chromosomes
a)
genes
b)
diploid
c)
haploid
d)
fertilization
68.
chromosome that have the same sequence of genes and the same structure
a)
homologous chromosomes
b)
autographs
c)
heterotraphs
d)
egg
69.
segment of dna on a chromosome that controls a specific trait
a)
heredity
b)
sister chromatids
c)
genes
d)
rna
70.
an allele whose trait always shows up in the organism when the allele is present
a)
genotype
b)
dominant
c)
recessive
d)
heredity
71.
allele that is masked when a dominant allele is present
a)
abiotic
b)
allele
c)
recessive
d)
biotic
72.
different forms of a gene
a)
allele
b)
biotic
c)
gamete
d)
recessive
73.
organisms genetic makeup
a)
dominant
b)
phenotype
c)
genotype
d)
homozygous
74.
an organisms physical appearance
a)
genotype
b)
dominant
c)
phenotype
d)
recessive
75.
having two identical allies for a trait
a)
homozygous
b)
heterozygous
c)
cell
d)
phenotype
76.
having two different alleles for a trait
a)
heterozygous
b)
homozygous
77.
chart shows all possible combinations of alleles that can result from genetic cross
a)
food web
b)
food chain
c)
punnett square
d)
energy pyramid
78.
diagram that shows feeding relationships between different organisms
a)
food diagram
b)
food web
c)
food chain
d)
energy pryamid
79.
non living
a)
abiotic
b)
biotic
80.
living
a)
abiotic
b)
biotic
81.
series of events in which one organism eats another
a)
food wed
b)
energy pyramid
c)
food chain
82.
single celled organisms that are usually too small for you to see directly
a)
multicellular
b)
unicellular
83.
organisms made up of many cells
a)
multicellular
b)
unicellular
84.
instrument which makes an object seem bigger than it really is
a)
genetics
b)
prokaryotic
c)
microscope
d)
bacteria
85.
tiny single celled organisms that sometimes cause disease
a)
lysosome
b)
genetic
c)
bacteria
d)
haploid
86.
no nucleus
a)
prokaryotic cells
b)
eukaryotic cells
c)
double helix
d)
dna
87.
true nucleus
a)
eukaryotic cells
b)
prokaryotic cells
c)
ribosome
d)
rna
88.
study of heredity
a)
genetics
b)
ecology
c)
double helix
89.
twisted ladder shape of dna
a)
genes
b)
dna
c)
double helix
90.
deoxyribonucleic acid-a molecule that is present in all living things and contains the info that determines the traits that a living the inherits and needs to be alive
a)
rna
b)
nucleotide
c)
dna
d)
ribosome
91.
in a nucleic-acid chain a subunit that consists of sugar of phosphate and nitrogen base
a)
substitution
b)
nucleotide
c)
mutation
d)
insertion
92.
ribonucleic acid-a molecule that is present in all living things and plays a role in protein production
a)
dna
b)
ribosome
c)
lysosome
d)
rna
93.
cell organelle that uses info from rna to make proteins
a)
ribosome
b)
lysosome
c)
mutation
d)
deletion
94.
a change in the nucleotide base sequence of a gene or DNA molecule
a)
deletion
b)
mutation
c)
substitution
d)
DNA
95.
a type of mutation in which a nucleotide base is left out during replication
a)
deletion
b)
mutation
c)
insertion
d)
substitution
96.
a type of mutation in which an extra nucleotide base is added during replication
a)
insertion
b)
deletion
c)
ribosome
d)
substitution
97.
type of mutation in which the wrong base is used during replication
a)
deletion
b)
substitution
c)
insertion
d)
nucleotide
98.
when scientists manipulate genes in an organism by moving genes from one type of organism to another
a)
pedigree
b)
clone
c)
DNA
d)
genetic engineering
99.
a method used to identify the unique patterns in a individual's DNA
a)
pedigree
b)
DNA fingerprinting
c)
clone
d)
DNA
100.
new organism that has an exact copy of another organism's genes
a)
pedigree
b)
DNA
c)
clone
d)
genetic engineering
101.
chart that shows family relationships that includes 2 or more generations
a)
pedigree
b)
clone
c)
DNA
d)
genetic engineering
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