Science, Recall From Year 7, Cells

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

True or False: All living organisms are made up of cells.

Answer 2

True

Question 3

What part of the cell contains genetic material?

Answer 3

Nucleus

Question 4

Fill in the blank: The _____ is responsible for producing energy in the cell.

Answer 4

Mitochondria

Question 5

Which part of the cell is selectively permeable?

Answer 5

Cell membrane

Question 6

What is the jelly-like substance inside the cell called?

Answer 6

Cytoplasm

Question 7

Multiple Choice: Which of the following is NOT a part of a prokaryotic cell? A) Nucleus B) Ribosome C) Cell wall D) Plasma membrane

Answer 7

A) Nucleus

Question 8

What are the small structures within a cell that perform specific functions called?

Answer 8

Organelles

Question 9

True or False: Ribosomes are responsible for protein synthesis.

Answer 9

True

Question 10

Fill in the blank: The _____ is responsible for packaging and transporting proteins.

Answer 10

Golgi apparatus

Question 11

What organelle is involved in the production of lipids?

Answer 11

Smooth endoplasmic reticulum

Question 12

Multiple Choice: Which state of matter has a definite shape and volume? A) Solid B) Liquid C) Gas D) Plasma

Answer 12

A) Solid

Question 13

What are the three primary states of matter?

Answer 13

Solid, liquid, gas

Question 14

True or False: In a liquid, the particles are tightly packed and vibrate in place.

Answer 14

False

Question 15

What is the term for the smallest unit of an element?

Answer 15

Atom

Question 16

Fill in the blank: _____ are negatively charged particles found in an atom.

Answer 16

Electrons

Question 17

Multiple Choice: Which of the following describes a gas? A) Definite shape and volume B) No definite shape or volume C) Definite volume but no definite shape D) All of the above

Answer 17

B) No definite shape or volume

Question 18

What is the term for the change of a substance from solid to liquid?

Answer 18

Melting

Question 19

True or False: The nucleus contains protons and neutrons.

Answer 19

True

Question 20

What is the function of lysosomes in a cell?

Answer 20

Digestion and waste removal

Question 21

Fill in the blank: The _____ is a network of protein filaments that helps maintain cell shape.

Answer 21

Cytoskeleton

Question 22

What is the primary function of the cell wall in plant cells?

Answer 22

Provide structure and support

Question 23

Multiple Choice: Which particle is found in the nucleus of an atom? A) Electron B) Proton C) Neutron D) Both B and C

Answer 23

D) Both B and C

Question 24

True or False: Osmosis is the movement of water across a selectively permeable membrane.

Answer 24

True

Question 25

What is the process by which cells divide to form new cells?

Answer 25

Cell division

Question 26

What is the main function of the cell wall in plant cells?

Answer 26

To provide structural support and protection.

Question 27

True or False: Animal cells have a cell wall.

Answer 27

False

Question 28

Fill in the blank: The _______ is a membrane-bound organelle that contains the cell's genetic material.

Answer 28

nucleus

Question 29

Which organelle is responsible for photosynthesis in plant cells?

Answer 29

Chloroplast

Question 30

What is the primary function of the vacuole in plant cells?

Answer 30

To store nutrients and waste products.

Question 31

Multiple Choice: Which of the following is NOT found in animal cells? A) Mitochondria B) Chloroplast C) Ribosomes D) Nucleus

Answer 31

B) Chloroplast

Question 32

What is the jelly-like substance inside both plant and animal cells called?

Answer 32

Cytoplasm

Question 33

True or False: Ribosomes are involved in protein synthesis.

Answer 33

True

Question 34

Fill in the blank: The _______ is responsible for packaging and distributing proteins within the cell.

Answer 34

Golgi apparatus

Question 35

What type of cell has a large central vacuole?

Answer 35

Plant cell

Question 36

Multiple Choice: Which of the following structures is involved in energy production? A) Cell wall B) Mitochondria C) Ribosome D) Endoplasmic reticulum

Answer 36

B) Mitochondria

Question 37

What is a pure substance?

Answer 37

A material that has a constant composition and consistent properties.

Question 38

True or False: Water is an example of a pure substance.

Answer 38

True

Question 39

Fill in the blank: A substance that cannot be broken down into simpler substances by chemical means is called a _______.

Answer 39

element

Question 40

Which organelle is known as the powerhouse of the cell?

Answer 40

Mitochondria

Question 41

Multiple Choice: Which part of the plant cell is selectively permeable? A) Cell wall B) Plasma membrane C) Chloroplast D) Nucleus

Answer 41

B) Plasma membrane

Question 42

What is the role of the endoplasmic reticulum in the cell?

Answer 42

To synthesize proteins and lipids.

Question 43

True or False: Lysosomes contain enzymes that break down waste materials.

Answer 43

True

Question 44

Fill in the blank: The _______ is involved in the synthesis of ATP in cells.

Answer 44

mitochondria

Question 45

What distinguishes plant cells from animal cells?

Answer 45

Plant cells have a cell wall, chloroplasts, and large vacuoles.

Question 46

Multiple Choice: Which of the following is a characteristic of pure substances? A) Variable composition B) Fixed composition C) Mixture of elements D) Contains impurities

Answer 46

B) Fixed composition

Question 47

What is the primary function of chloroplasts?

Answer 47

To convert light energy into chemical energy through photosynthesis.

Question 48

True or False: Animal cells do not contain chloroplasts.

Answer 48

True

Question 49

Fill in the blank: The _______ is responsible for detoxifying harmful substances in the cell.

Answer 49

smooth endoplasmic reticulum

Question 50

Multiple Choice: Which of the following is a component of the cell membrane? A) DNA B) RNA C) Phospholipids D) Cellulose

Answer 50

C) Phospholipids