Quiz about 7th Grade Science Final

Question 1

Which organelle is responsible for producing energy in the form of ATP?

Accepted Answer

Mitochondrion

Answer

Nucleus

Answer

Ribosome

Answer

Golgi apparatus

Question 2

What is the main function of the cell membrane?

Accepted Answer

To control what enters and exits the cell

Answer

To store genetic information

Answer

To produce energy

Answer

To store waste

Question 3

The organelle responsible for protein synthesis is:

Accepted Answer

Ribosome

Answer

Mitochondrion

Answer

Nucleus

Answer

Lysosome

Question 4

The powerhouse of the cell is the __________.

Accepted Answer

Mitochondrion

Answer

Ribosome

Answer

Nucleus

Answer

Lysosome

Question 5

The structure that contains the cell's genetic material is the __________.

Accepted Answer

Nucleus

Answer

Mitochondrion

Answer

Ribosome

Answer

Lysosome

Question 6

Which of the following is found in plant cells but not in animal cells?

Accepted Answer

Chloroplast

Answer

Mitochondrion

Answer

Ribosome

Answer

Nucleus

Question 7

Which structure regulates the movement of substances in and out of the cell?

Accepted Answer

Cell membrane

Answer

Cell wall

Answer

Nucleus

Answer

Cytoplasm

Question 8

The gel-like substance inside the cell that supports the organelles is called the __________.

Accepted Answer

Cytoplasm

Answer

Cell Wall

Answer

Nucleus

Answer

Cell Membrane

Question 9

What is the function of the ribosomes in a cell?

Accepted Answer

Synthesize proteins

Answer

Produce energy

Answer

Store genetic information

Answer

Digest waste

Question 10

Which of the following organelles is responsible for breaking down waste in the cell?

Accepted Answer

Lysosome

Answer

Chloroplast

Answer

Ribosome

Answer

Mitochondrion

Question 11

The structure that gives plant cells their shape and support is the __________.

Accepted Answer

Cell wall

Answer

Cell Membrane

Answer

Nucleus

Answer

Endoplasmic Reticulum

Question 12

Which of the following is NOT a part of the cell theory?

Accepted Answer

Cells come from non-living matter

Answer

All living things are made of cells

Answer

Cells are the basic unit of structure and function in living organisms

Answer

All cells arise from pre-existing cells

Question 13

Where does most digestion of food take place?

Accepted Answer

Small intestine

Answer

Mouth

Answer

Stomach

Answer

Large intestine

Question 14

The process by which food is moved through the digestive tract by muscle contractions is called:

Accepted Answer

Peristalsis

Answer

Absorption

Answer

Segmentation

Answer

Digestion

Question 15

Which of the following digestive organs produces bile?

Accepted Answer

Liver

Answer

Stomach

Answer

Pancreas

Answer

Small intestine

Question 16

The process of absorbing nutrients into the bloodstream takes place in the __________.

Accepted Answer

Small intestine

Answer

Stomach

Answer

Mouth

Answer

Large intestine

Question 17

The __________ breaks down food using hydrochloric acid and digestive enzymes.

Accepted Answer

Stomach

Answer

esophagus

Answer

small intestine

Question 18

Which part of the digestive system is responsible for absorbing water and salts from indigestible food?

Accepted Answer

Large intestine

Answer

Small intestine

Answer

Stomach

Answer

Esophagus

Question 19

What is the main purpose of the digestive system?

Accepted Answer

To break down food into nutrients

Answer

To circulate nutrients in the blood

Answer

To store food

Answer

To regulate body temperature

Question 20

The food we eat is broken down into simpler molecules by:

Accepted Answer

Both A and B

Answer

Mechanical digestion

Answer

Chemical digestion

Answer

Peristalsis

Question 21

The ________ absorbs nutrients and sends them to the bloodstream.

Accepted Answer

small intestine

Answer

stomach

Answer

esophagus

Question 22

What does the liver do to help digestion?

Accepted Answer

Produces bile to digest fats

Answer

Produces digestive enzymes

Answer

Breaks down food molecules

Answer

Absorbs nutrients

Question 23

The process by which nutrients move from the digestive system into the bloodstream is called:

Accepted Answer

Absorption

Answer

Ingestion

Answer

Peristalsis

Question 24

The small intestine is lined with tiny finger-like projections called _________ that increase surface area for absorption.

Accepted Answer

villi

Answer

folds

Answer

fingers

Answer

tubules

Question 25

The process of removing waste from the digestive system is known as:

Accepted Answer

Excretion

Answer

Absorption

Answer

Digestion

Answer

Ingestion

Question 26

Which part of the nervous system is responsible for controlling voluntary movements?

Accepted Answer

Somatic nervous system

Answer

Autonomic nervous system

Answer

Spinal cord

Answer

Peripheral nervous system

Question 27

Which of the following is the primary function of the brainstem?

Accepted Answer

Basic life functions (breathing, heartbeat)

Answer

Memory

Answer

Muscle coordination

Answer

Sensory processing

Question 28

What is the main function of sensory neurons?

Accepted Answer

Carry sensory information from receptors to the brain and spinal cord

Answer

Carry information from the brain to muscles

Answer

Carry information from the spinal cord to the brain

Answer

Transmit signals from the brain to the heart

Question 29

The _________ is responsible for processing and interpreting sensory information.

Accepted Answer

brain

Answer

spinal cord

Answer

nerves

Question 30

The autonomic nervous system controls:

Accepted Answer

Involuntary actions like heart rate and digestion

Answer

Voluntary movements

Question 31

Which part of the brain is responsible for balance and coordination?

Accepted Answer

Cerebellum

Answer

Cerebrum

Answer

Brainstem

Answer

Medulla oblongata

Question 32

Which of the following structures transmits electrical signals in the nervous system?

Accepted Answer

Neuron

Answer

Red blood cell

Answer

Muscle cell

Answer

Bone cell

Question 33

What is the function of the myelin sheath?

Accepted Answer

To speed up the transmission of electrical impulses along neurons

Answer

To protect the brain

Answer

To regulate hormone release

Answer

To store energy

Question 34

The part of the neuron that receives signals from other cells is called the:

Accepted Answer

Dendrite

Answer

Axon

Answer

Nucleus

Answer

Synapse

Question 35

The ________ is the part of the brain responsible for higher-level functions such as thinking, reasoning, and memory.

Accepted Answer

Cerebrum

Answer

Cerebellum

Answer

Medulla

Answer

Brain Stem

Question 36

Which of the following best describes a reflex action?

Accepted Answer

B) A rapid, involuntary response to a stimulus

Answer

A) A conscious decision made by the brain

Answer

C) A process controlled by the cerebellum

Answer

D) A learned response

Question 37

The _______ nervous system is responsible for controlling voluntary movements.

Accepted Answer

Somatic

Answer

Autonomic

Question 38

The tiny gap between two neurons where neurotransmitters are released is called the:

Accepted Answer

C) Synapse

Answer

A) Axon terminal

Answer

B) Dendrite

Answer

D) Node of Ranvier

Question 39

The _______ is a bundle of nerves that runs down the back and connects the brain to the rest of the body.

Accepted Answer

spinal cord

Answer

peripheral nervous system

Answer

central brain

Question 40

What is the function of the motor neurons?

Accepted Answer

B) To carry information from the brain to the muscles

Answer

A) To transmit sensory information to the brain

Answer

C) To detect changes in the environment

Answer

D) To process sensory information

Question 41

Energy cannot be created or destroyed, only transformed. This is known as:

Accepted Answer

A) The law of conservation of energy

Answer

B) The first law of thermodynamics

Answer

C) The second law of thermodynamics

Answer

D) Newton's law

Question 42

Which of the following is an example of kinetic energy?

Accepted Answer

C) A moving car

Answer

A) A ball sitting at the top of a hill

Answer

B) A book on a shelf

Question 43

Which type of energy is stored in chemical bonds?

Accepted Answer

Chemical energy

Answer

Thermal energy

Answer

Kinetic energy

Answer

Potential energy

Question 44

The energy stored in an object due to its position is called:

Accepted Answer

Gravitational potential energy

Answer

Kinetic energy

Answer

Mechanical energy

Answer

Elastic potential energy

Question 45

The energy of motion is called __________ energy.

Accepted Answer

kinetic

Answer

potential

Answer

chemical

Question 46

Which of the following is an example of potential energy?

Accepted Answer

A stretched rubber band

Answer

A ball rolling down a hill

Answer

A person running

Answer

A spinning wheel

Question 47

The energy stored in food is an example of:

Accepted Answer

Chemical energy

Answer

Kinetic energy

Answer

Nuclear energy

Answer

Gravitational potential energy

Question 48

The process of energy conversion in a solar panel is an example of converting:

Accepted Answer

Solar energy into electrical energy

Answer

Chemical energy into mechanical energy

Answer

Electrical energy into chemical energy

Answer

Kinetic energy into thermal energy

Question 49

What is the force that resists the motion of two surfaces sliding past each other?

Accepted Answer

Friction

Answer

Gravitational force

Answer

Tension

Answer

Air resistance

Question 50

The force of gravity on an object is known as its:

Accepted Answer

Weight

Answer

Mass

Answer

Density

Answer

Volume

Question 51

The _________ force is the pull exerted by the Earth on an object, causing it to fall toward the ground.

Accepted Answer

gravitational

Answer

magnetic

Answer

elastic

Question 52

Which of the following is NOT a type of force?

Accepted Answer

Emotional force

Answer

Magnetic force

Answer

Gravitational force

Answer

Elastic force

Question 53

When two forces act in the same direction, the result is:

Accepted Answer

The forces are added together

Answer

The forces cancel each other out

Answer

The forces remain separate

Answer

The object remains stationary

Question 54

Which of the following would increase the force of friction between two surfaces?

Accepted Answer

Increasing the roughness of the surfaces

Answer

Smoothing one of the surfaces

Answer

Applying less pressure to the surfaces

Question 55

The force that pulls objects toward the center of the Earth is called:

Accepted Answer

Gravitational force

Answer

Weight

Answer

Magnetism

Answer

Friction

Question 56

What is the unit of force in the International System of Units (SI)?

Accepted Answer

Newton

Answer

Kilogram

Answer

Joule

Answer

Meter

Question 57

If you push a box with a force of 10 N to the right, and another person pushes with a force of 5 N to the left, what is the net force on the box?

Accepted Answer

5 N to the right

Answer

5 N to the left

Answer

10 N to the right

Answer

15 N to the right

Question 58

What happens to the force of gravity between two objects as the distance between them increases?

Accepted Answer

The force decreases

Answer

The force increases

Answer

The force stays the same

Answer

The force becomes zero

Question 59

Newton's ________ law of motion states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force.

Accepted Answer

first

Answer

second

Answer

third

Question 60

The force that opposes the motion of objects through air is called:

Accepted Answer

fluid friction

Answer

rolling friction

Answer

sliding friction

Answer

tension friction

Question 61

Which of the following is an example of a balanced force?

Accepted Answer

A book resting on a table

Answer

A car speeding down a highway

Answer

A person pushing a cart with force

Answer

A falling apple

Question 62

If you are sitting in a car that suddenly stops, your body continues to move forward due to:

Accepted Answer

Inertia

Answer

Friction

Answer

Gravity

Answer

Air resistance

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