NEW
Font size
Worksheets7th Grade DBA1 practice
Total questions: 43
Worksheet time: 22mins
Which of the following is produced as a waste of cellular respiration?
a. carbon dioxide b. sodium chloride c. oxygen d. Sugar
a
b
c
d
In photosynthesis, sunlight is converted into
a. chemical energy. b. nuclear energy. c. mechanical energy. d. kinetic energy.
a
b
c
d
The main function of a group of muscle cells is to
a. make oxygen. b. release energy. c. digest nutrients. d. cause movement.
a
b
c
d
Which is an example of asexual reproduction?
a. the process of meiosis in a fruit fly
b. fertilization of a chicken egg
c. binary fission in an amoeba
d. the process of embryo development in a mous
a
b
c
d
What advantage do the offspring of sexual reproduction likely have that offpspring of asexual reproduction do not?
a. DNA variation may allow survival in a changing environment.
b. Unfavorable traits from each parent will be eliminated.
c. Traits will be perfectly adapted to the environment.
d. DNA will be less varied and therefore more stable.
a
b
c
d
The central nervous system includes the brain and the...
a. senses. b. organs. c. muscles. d. spinal cord.
a
b
c
d
Which term best describes the movement of water through semi-permeable membranes?
a. respiration b. osmosis c. mitosis d. Condensation
a
b
c
d
Frog eggs hatch into tadpoles, and then develop into frogs. This process is known as
a. adolescence. b. crossbreeding. c. regeneration. d. Metamorphosis.
a
b
c
d
During plant reproduction, what structure enlarges to become a fruit?
a. seed b. ovary c. oviduct d. embryo
a
b
c
d
Group of specialized cells that all perform the same function?
a. virus b. tissue c. organ d. Nucleus
a
b
c
d
The diagram below shows a one-celled organism. Cell structures called organelles are labeled. Which statement about the labeled structures is correct?
a. They normally can be seen without magnification.
b. They can survive outside the cell.
c. They help carry on life activities within the cell.
d. They cause disease within the cell.
Modern cell theory is summarized below. Cell theory explains all of the following except
a. the growth of animals.
b. how viruses require the cells of living organisms to survive.
c. how bacteria reproduce.
d. the storage of chemical energy in plant cells.
Materials pass through a cell’s semi-permeable membrane is called
a. diffusion. b. oxidation. c. respiration. d. reproduction.
a
b
c
d
What is the main function of the cell wall in a plant cell?
a. to protect against disease
B. support
c. to contain tissues
d. to help with cell division
a
b
c
d
The process shown in the diagram above is known
a. cell differentiation. b. cell division. c. asexual reproduction. d. sexual reproduction.
a
b
c
d
Why do cells need to divide?
a. obtain nutrients. b. grow and reproduce. c. make proteins. d. conserve matter and energy.
a
b
c
d
Which organelle in plant cells capture sunlight to produce sugars?
a. vacuoles b. ribosomes c. mitochondria d. Chloroplasts
a
b
c
d
Which of the following is a major difference between the processes of photosynthesis and cellular respiration?
a. photosynthesis occurs in only plants, cellular respiration does not occur in plants
b. photosynthesis stores energy in carbohydrates, cellular respiration releases energy from carbohydrates
c. photosynthesis releases carbon dioxide, cellular respiration uses carbon dioxide
d. photosynthesis uses oxygen, cellular respiration releases oxygen
Cellular respiration breaks down sugar molecules. What results from this process?
a. growth of bacteria b. release of energy c. activity of enzymes d. production of oxygen
a
b
c
d
Which list correctly shows how these levels are organized from the simplest to the most complex?
a. tissue, cell, organ, organ system
b. organ, cell, organ system, tissue
c. cell, tissue, organ, organ system
d. organ system, tissue, organ, cell
The skin, lungs, and kidneys all do what?
a. help eliminate body wastes. b. help blood circulate. c. aid in digestion. d. aid in respiration
a
b
c
d
Which example shows a chemical change?
a. teeth chewing food
b. enzymes breaking down food
c. food moving through the intestines
d. food churning in the stomach
a
b
c
d
Which statement best describes how the systems are similar?
a. Both systems provide structure to the body.
b. Both systems contain specialized cells and tissues.
c. Both systems assume the functions of other failing body parts.
d. Both systems establish homeostasis and communication.
How does the skin maintain homeostasis?
a. The skin transports oxygen.
b. The skin digests viruses.
c. The skin sends messages to the brain.
d. The skin stabilizes temperature.
a
b
c
d
Any change that causes a response
a. stimulus b. habit c. reflex d. Source
a
b
c
d
What Celebrity is this?
Ariana Grande
Selena Gomez
Caillou
A Celebrity
What Celebrity is this?
Drake
Justin Bieber
Bruno Mars
Post Malone
I'm gonna take my horse to the
old town road
old clown road
old toad road
old down town
What is Lil Nas X's real name
Montero Lamar Hill
Lamar Hill
Gazzy Garcia
Dwyane John
What is Beyonce's full name?
Beyoncé Giselle Knowles
Beyoncé Destiny Knowles
Beyoncé Giselle Cowl
Beyoncé Childs
A sea creature with eight legs
Seahorse
Octopus
Squid
Crab
If a white house is white and a yellow house is yellow, what color is a green house?
White
Yellow
Green
Clear
