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Worksheets7th grade Science Midterm
Total questions: 40
Worksheet time: 1hrs 20mins
Which characteristic does NOT apply to all living things?
the ability to respond to stimuli
the ability to maintain homeostasis
the ability to reproduce by dividing
_____ make up an organism's scientific name.
Class and family
Genus and species
Phylum and order
Which is a characteristic of all living things?
All have cells and structure with specific functions.
They all grow, develop and reproduce.
All living things use energy.
All of these options.
Living things making new living things like themselves is called what?
organization
growth
reproduction
response to stimuli
What is the process of becoming larger by adding cells and/or by increasing cell size?
homeostasis
growth
adjusting
reproduction
Which structure is NOT found in animal cells?
cell wall
cell membrane
mitochondrion
Which part of the cell directs cell activity?
cell membrane
nucleus
vacuole
What is the movement of substances using transport protein?
facilitated diffusion
active transport
endocytosis
A _____ molecule is an example of a carbohydrate.
lipid
sugar
protein
nucleic acid
Which substance is most common in cells?
fat
amino acids
water
The movement of substances through a cell membrane without using cell's energy is called...
passive transport
active transport
osmosis
diffusion
Osmosis is a type of passive transport that involves movement of ___________molecules only through the cell membrane.
chlorophyll
oxygen
carbon dioxide
water
The movement of substances through a cell membrane only by using cell's energy is called...
passive transport
active transport
facilitated transport
endocytosis
The process during which a cell's vesicles release their contents outside the cell is called...
diffusion
endocytosis
exocytosis
osmosis
The boundary between the cell and its environment and controls what goes in and out of the cell is called what?
cell membrane
cell wall
mitochondria
chlorophyll
A process by which glucose is broken down into smaller molecules is called...
cellular respiration
fermentation
active transport
glycolysis
Lactic acid fermentation occurs in what type of cells?
milk cells
muscle cells
yeast cells
plant cells
A series of chemical reactions that convert light energy, water and CO2 into the food-energy molecule glucose and give off oxygen is called?
fermentation
dffusion
passive transport
photosynthesis
What kind of pigments absorb energy in plant cells?
chloroplasts
chlorophyll
ATP
eukaryotes
What essential element is also produced during photosynthesis?
oxygen
carbon dioxide
nitrogen
ATP
This feature holds together the DNA strands in a chromosome?
sister chromatids
centromere
cell cycle
When a cell's cytoplasm divides it is called...
cytokinesis
mitosis
interphase
Which is true of cell differentiation?
Tissues produce various stem cells.
Stem cells become different types of cells.
Unicellular organisms become multicellular.
Two identical _____ result when a cell undergoes cytokinesis.
stem cells
tissues
daughter cells
chromatids
Vascular _____ transport water and nutrients throughout a plant's body.
chromatids
tissue
cells
cytoplasm
When one diploid cell divides to make four haploid cells it is called?
homologous
meiosis
fertilization
mitosis
When an egg cell and a sperm cell join is called?
fertizilation
sexual reproduction
zygote
homologous
What is a new cell formed by joining of a sperm and an egg?
homologous
fertilization
sexual reproduction
zygote
When the genetic materials from two different cells combine to produce a new organism is called?
zygote
fertilization
sexual reproduction
homologous
_____ cells are cells that have pairs of chromosomes.
haploid
diploid
sperm
DNA
Which process in NOT a form of asexual reproduction?
fisson
budding
vegetative reproduction
meiosis
What is an offspring growing from a piece of its parent?
budding
regeneration
fisson
cloning
When one parent produces offspring without meiosis and fertilization it is called what?
asexual reproduction
cloning
vegetative reproduction
budding
What are identical organisms growing from cells grown in a laboratory?
asexual reproduction
vegetative reproduction
cloning
fission
The process in which one parent produces offspring without meiosis and fertilization is called_________.
sexual reproduction
asexual reproduction
cloning
regeneration
Each base pair combined with a sugar and phosphate molecule is called a what?
chromosome
codon
nucleotide
DNA
What is three nucleotides in a row called?
codon
base
chromosome
nucleotide
A mutation where a base is exchanged for another is...
deletion
frame shift
insertion
substitution
What is the phenotype that is always shown when this allele is inherited? It masks any other alleles that might be present in the genotype.
recessive
heterozygous
dominant
homozygous
Having two different allelles for a trait is what?
Heterozygous
Homozygous
Phenotype
Dominant
