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Worksheets1st SEMESTER EXAM
Total questions: 77
Worksheet time: 39mins
Which structure controls what enters and leaves the cell?
Nucleus
Cell membrane
Mitochondria
Ribosome
The “powerhouse” of the cell is the:
Mitochondria
Nucleus
Golgi body
Vacuole
Plant cells contain which structure that animal cells do NOT?
Ribosomes
Cell wall
Cytoplasm
Cell membrane
The basic unit of life is the:
Tissue
Organ
Cell
Organ system
Which organelle holds DNA?
Lysosome
Nucleus
Ribosome
Chloroplast
What process do cells use to turn glucose into energy?
Photosynthesis
Cell respiration
Mitosis
Osmosis
Which organelle packages and ships proteins?
Golgi apparatus
Endoplasmic reticulum
Nucleus
Vacuole
Photosynthesis occurs in the:
Ribosome
Chloroplast
Vacuole
Cytoplasm
The jelly-like fluid inside the cell is called the:
Cytoplasm
Nucleus
Cell wall
Membrane
Bacteria are examples of:
Eukaryotes
Prokaryotes
Multicellular
Fungi
What organelle makes a cell’s food?
Ribosomes
Mitochondria
Nucleolus
Vacuole
A group of similar cells working together is called a:
Organ
Organ system
Tissue
Organism
The ____________________ wall gives plant cells a rigid structure.
cell
plasma
nuclear
mitochondrial
The ____________________ controls the cell and contains DNA.
nucleus
mitochondria
ribosome
cell membrane
15. ____________________ are small ball-like structures that make proteins.
Ribosomes
Mitochondria
Lysosomes
Nucleus
The process where plants make food using sunlight is called ____________________.
photosynthesis
respiration
transpiration
fermentation
The difference between prokaryotic and eukaryotic cells is that:
Prokaryotic cells lack a nucleus, while eukaryotic cells have a nucleus.
Both prokaryotic and eukaryotic cells have a nucleus.
Eukaryotic cells lack genetic material, while prokaryotic cells have it.
Prokaryotic cells are always multicellular, while eukaryotic cells are unicellular.
18. Mitochondria and chloroplasts differ in both structure and function. Which of the following best describes these differences?
Mitochondria produce ATP through cellular respiration, while chloroplasts carry out photosynthesis.
Mitochondria carry out photosynthesis, while chloroplasts produce ATP through cellular respiration.
Both mitochondria and chloroplasts perform the same function in all cells.
Chloroplasts are found in animal cells, while mitochondria are found only in plant cells.
Cells need to divide because:
they need to grow, repair, and reproduce.
they need to stop functioning.
they need to shrink in size.
they need to lose energy.
The system responsible for transporting oxygen and nutrients is the:
Respiratory
Circulatory
Digestive
Nervous
Which organ is part of the respiratory system?
Heart
Brain
Lungs
Stomach
The nervous system communicates using:
Blood
Electrical signals
Food
Hormones
Which system breaks down food into nutrients?
Digestive
Circulatory
Skeletal
Endocrine
Bones are part of which system?
Muscular
Skeletal
Integumentary
Digestive
Muscles move the body by:
Stretching
Pushing
Pulling
Floating
The skin is part of which system?
Nervous
Circulatory
Integumentary
Digestive
Which organ filters waste from the blood?
Lung
Kidney
Pancreas
Stomach
The brain and spinal cord are part of the:
Central nervous system
Peripheral system
Muscular system
Respiratory system
The main function of the circulatory system is to:
Break down food
Move blood throughout the body
Control movement
Remove carbon dioxide
The organ where most nutrient absorption occurs is the:
Stomach
Small intestine
Large intestine
Pancreas
Which system produces hormones?
Nervous
Endocrine
Digestive
Skeletal
32. The __________________ system is responsible for movement.
muscular
digestive
respiratory
nervous
The brain is protected by the __________________.
skull
rib cage
spinal cord
pelvis
34. The __________________ system is responsible for sending messages through the body.
nervous
digestive
respiratory
circulatory
The __________________ filters waste from the blood.
kidney
heart
lungs
stomach
36. The circulatory and respiratory systems work together to:
deliver oxygen to body cells and remove carbon dioxide
digest food and absorb nutrients
control movement and coordination
produce hormones for growth
Describe the process of food digestion from ingestion to absorption.
Food is ingested, broken down mechanically and chemically in the mouth, stomach, and small intestine, then nutrients are absorbed in the small intestine.
Food is ingested and immediately absorbed in the stomach without any breakdown.
Food is digested only in the mouth and absorbed in the large intestine.
Food is ingested, passes through the esophagus, and is absorbed in the stomach without chemical breakdown.
38. The skeletal system is important besides supporting the body because it:
protects internal organs and produces blood cells.
helps in digestion and absorption of nutrients.
regulates body temperature and produces hormones.
controls the nervous system and senses the environment.
Newton's First Law is also called the law of:
Force
Action
Inertia
Gravity
A force that slows motion due to surfaces rubbing is:
Gravity
Friction
Motion
Speed
Newton's Second Law is written as:
F = m/a
F = ma
a = mt
m = Fa
Which situation demonstrates Newton's Third Law?
A ball rolling until friction stops it
A balloon flying when air shoots out
A car speeding up
A box sitting still
The amount of matter in an object is its:
Weight
Mass
Force
Acceleration
Which force pulls objects toward Earth?
Friction
Momentum
Gravity
Acceleration
If mass increases and force stays the same, acceleration:
Increases
Stays the same
Decreases
Doubles
A rocket launching is a good example of:
Inertia
Action-reaction
Gravity
Friction
A seatbelt helps protect passengers from what law?
First
Second
Third
Law of Friction
Which variable is directly related to acceleration?
Mass
Force
Gravity
Friction
When an object remains at rest unless acted on by a force, this is called:
Acceleration
Action
Inertia
Momentum
A push or pull on an object is a:
Force
Weight
Mass
Reaction
51. Newton’s First Law is the law of _____________________.
Inertia
Gravity
Motion
Force
The formula for force is _____________________.
Force = mass × acceleration (F = ma)
Force = mass ÷ acceleration (F = m/a)
Force = acceleration ÷ mass (F = a/m)
Force = mass + acceleration (F = m + a)
53. Gravity is a force that pulls objects toward the _____________________.
center of the Earth
surface of the Moon
top of the atmosphere
edge of the universe
54. Newton’s Third Law states that for every action, there is an equal and opposite _____________________.
reaction
force
energy
motion
Newton’s First Law can be explained using which real-life example?
A book resting on a table remains at rest until pushed.
A plant growing towards sunlight.
A melting ice cube in the sun.
A balloon popping when pricked.
56. Mass affects acceleration when the same force is applied in the following way:
As mass increases, acceleration decreases.
As mass increases, acceleration increases.
Mass does not affect acceleration.
Acceleration remains constant regardless of mass.
Newton’s Third Law can be explained using an example from sports. Which of the following best illustrates this law?
A soccer player kicks a ball, and the ball moves forward while the player's foot feels a backward force.
A runner gets tired after a long race.
A basketball bounces higher on a hard surface than on a soft surface.
A swimmer moves faster by wearing a swimsuit.
Energy of motion is called:
Potential energy
Kinetic energy
Thermal energy
Stored energy
Energy stored due to position is:
Kinetic
Potential
Heat
Electrical
At the top of a roller coaster hill, energy is mostly:
Kinetic
Potential
Thermal
Chemical
Which example shows kinetic energy increasing?
A ball sitting still
A roller coaster speeding down a hill
A book on a shelf
A frozen lake
Thermal energy is the energy of:
Chemical reactions
Moving particles
Stored food
Electricity
When something heats up, particle motion:
Decreases
Stops
Increases
Has no effect
Which object has the MOST thermal energy?
Ice cube
Warm water
Hot soup
Frozen metal
A roller coaster loop works because of:
Friction only
Potential and kinetic energy changes
Thermal energy
Magnetism
Energy cannot be created or destroyed describes:
Newton’s 3rd law
Law of Conservation of Energy
Thermal expansion
Gravity
When kinetic energy increases, potential energy:
Also increases
Stays the same
Decreases
Disappears
Rubbing your hands together produces:
Potential energy
Thermal energy
Light energy
Chemical energy
When a marble goes down the first big hill in a coaster, it gains:
Potential energy
Kinetic energy
Elastic energy
Electrical energy
70. _________________ energy is stored energy based on position.
Potential
Kinetic
Thermal
Chemical
71. _________________ energy is the energy of motion.
Kinetic
Potential
Thermal
Chemical
Fill in the Blank 72. Heat energy is also known as _________________ energy.
Thermal
Kinetic
Electrical
Chemical
Fill in the Blank 73. Energy cannot be created or destroyed, only _________________ .
transformed
measured
lost
stored
During a roller coaster ride, how do potential and kinetic energy change?
Potential energy decreases as the coaster descends, while kinetic energy increases.
Potential energy increases as the coaster descends, while kinetic energy decreases.
Both potential and kinetic energy remain constant throughout the ride.
Kinetic energy is always greater than potential energy during the ride.
Thermal energy is the energy that comes from the motion of particles, and it affects how fast the particles move. Which statement best describes the effect of thermal energy on particle motion?
Thermal energy increases particle motion, causing particles to move faster.
Thermal energy decreases particle motion, causing particles to move slower.
Thermal energy has no effect on particle motion.
Thermal energy causes particles to stop moving completely.
76. The marble in your roller coaster project needed enough potential energy at the start because:
it needed energy to move through the entire track.
it would look more interesting.
it would be easier to catch at the end.
it would make the track longer.
Which of the following best describes how concepts like cells, body systems, Newton’s laws, and mechanical energy can be applied to everyday life?
They help explain how our bodies function, how forces affect us, and how energy is used in daily activities.
They are only important for scientists and have no impact on daily life.
They are unrelated topics that do not connect to real-world experiences.
They only apply to machines and not to living things.
