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cells ig- Flashcards

cambridge learners book 7 science chapter 1 - cells (27 cards)

1
Q

What is the basic unit of life?

A

The 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

Fill in the blank: Cells are surrounded by a _______.

A

cell membrane.

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4
Q

What are the two main types of cells?

A

Prokaryotic and eukaryotic cells.

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5
Q

Which type of cell lacks a nucleus?

A

Prokaryotic cell.

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6
Q

What is the function of the nucleus in a cell?

A

It controls the cell’s activities and contains genetic material.

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7
Q

Multiple Choice: Which of the following is a function of the cell membrane? A) Energy production B) Protection C) Protein synthesis

A

B) Protection.

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8
Q

Name one organelle found in eukaryotic cells.

A

Mitochondria.

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9
Q

What is the role of mitochondria in a cell?

A

They produce energy through respiration.

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10
Q

True or False: Plant cells have chloroplasts.

A

True.

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11
Q

Fill in the blank: The jelly-like substance inside a cell is called _______.

A

cytoplasm.

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12
Q

What structure provides support and shape to plant cells?

A

Cell wall.

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13
Q

Multiple Choice: Which of the following is NOT found in animal cells? A) Cell wall B) Lysosome C) Ribosome

A

A) Cell wall.

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14
Q

What is the function of ribosomes?

A

They are responsible for protein synthesis.

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15
Q

True or False: All cells have DNA.

A

True.

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16
Q

What is the primary component of the cell membrane?

A

Phospholipids.

17
Q

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

A

Golgi apparatus.

18
Q

What are lysosomes often referred to as?

A

The ‘digestive system’ of the cell.

19
Q

Multiple Choice: Which organelle is known as the powerhouse of the cell? A) Nucleus B) Mitochondria C) Endoplasmic reticulum

A

B) Mitochondria.

20
Q

What is the main difference between prokaryotic and eukaryotic cells?

A

Prokaryotic cells do not have a nucleus; eukaryotic cells do.

21
Q

True or False: The endoplasmic reticulum is involved in lipid and protein synthesis.

22
Q

Fill in the blank: The _____ helps in the movement of materials within the cell.

A

cytoskeleton.

23
Q

What is the function of chloroplasts?

A

They conduct photosynthesis in plant cells.

24
Q

Multiple Choice: Which organelle is involved in detoxifying harmful substances? A) Lysosome B) Peroxisome C) Ribosome

A

B) Peroxisome.

25
What is the function of the vacuole in plant cells?
It stores nutrients and waste products.
26
True or False: Cells can exist independently of each other.
False.
27
What are stem cells?
Undifferentiated cells that can develop into different cell types.