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revision year 8 > Science, Recall From Year 7, Cells > Flashcards

Science, Recall From Year 7, Cells Flashcards

1
Q

What is the basic unit of life?

A

Cell

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2
Q

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

A

True

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3
Q

What part of the cell contains genetic material?

A

Nucleus

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4
Q

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

A

Mitochondria

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5
Q

Which part of the cell is selectively permeable?

A

Cell membrane

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6
Q

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

A

Cytoplasm

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7
Q

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

A

A) Nucleus

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8
Q

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

A

Organelles

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9
Q

True or False: Ribosomes are responsible for protein synthesis.

A

True

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10
Q

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

A

Golgi apparatus

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11
Q

What organelle is involved in the production of lipids?

A

Smooth endoplasmic reticulum

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12
Q

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

A

A) Solid

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13
Q

What are the three primary states of matter?

A

Solid, liquid, gas

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14
Q

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

A

False

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15
Q

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

A

Atom

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16
Q

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

A

Electrons

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17
Q

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

A

B) No definite shape or volume

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18
Q

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

A

Melting

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19
Q

True or False: The nucleus contains protons and neutrons.

A

True

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20
Q

What is the function of lysosomes in a cell?

A

Digestion and waste removal

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21
Q

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

A

Cytoskeleton

22
Q

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

A

Provide structure and support

23
Q

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

A

D) Both B and C

24
Q

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

A

True

25
Q

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

A

Cell division

26
Q

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

A

To provide structural support and protection.

27
Q

True or False: Animal cells have a cell wall.

A

False

28
Q

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

A

nucleus

29
Q

Which organelle is responsible for photosynthesis in plant cells?

A

Chloroplast

30
Q

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

A

To store nutrients and waste products.

31
Q

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

A

B) Chloroplast

32
Q

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

A

Cytoplasm

33
Q

True or False: Ribosomes are involved in protein synthesis.

A

True

34
Q

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

A

Golgi apparatus

35
Q

What type of cell has a large central vacuole?

A

Plant cell

36
Q

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

A

B) Mitochondria

37
Q

What is a pure substance?

A

A material that has a constant composition and consistent properties.

38
Q

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

A

True

39
Q

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

A

element

40
Q

Which organelle is known as the powerhouse of the cell?

A

Mitochondria

41
Q

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

A

B) Plasma membrane

42
Q

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

A

To synthesize proteins and lipids.

43
Q

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

A

True

44
Q

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

A

mitochondria

45
Q

What distinguishes plant cells from animal cells?

A

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

46
Q

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

A

B) Fixed composition

47
Q

What is the primary function of chloroplasts?

A

To convert light energy into chemical energy through photosynthesis.

48
Q

True or False: Animal cells do not contain chloroplasts.

A

True

49
Q

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

A

smooth endoplasmic reticulum

50
Q

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

A

C) Phospholipids

revision year 8 (7 decks)

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