cells and organelles (week 2)

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

True or False: All living organisms are composed of cells.

Answer 2

True

Question 3

What organelle is known as the powerhouse of the cell?

Answer 3

Mitochondria

Question 4

Fill in the blank: The __________ is responsible for protein synthesis.

Answer 4

Ribosome

Question 5

Which organelle is involved in the modification and packaging of proteins?

Answer 5

Golgi apparatus

Question 6

What structure protects and gives shape to plant cells?

Answer 6

Cell wall

Question 7

True or False: The nucleus contains the cell’s genetic material.

Answer 7

True

Question 8

What is the function of lysosomes?

Answer 8

Digestion and waste removal

Question 9

Which organelle is known as the ‘control center’ of the cell?

Answer 9

Nucleus

Question 10

What is the primary function of the endoplasmic reticulum?

Answer 10

Protein and lipid synthesis

Question 11

Fill in the blank: The __________ is the jelly-like substance within the cell.

Answer 11

Cytoplasm

Question 12

What organelle is responsible for photosynthesis in plant cells?

Answer 12

Chloroplast

Question 13

True or False: Prokaryotic cells have a nucleus.

Answer 13

False

Question 14

What is the role of the plasma membrane?

Answer 14

Regulates what enters and leaves the cell

Question 15

Multiple choice: Which organelle is involved in detoxifying harmful substances? A) Ribosome B) Golgi apparatus C) Smooth endoplasmic reticulum D) Lysosome

Answer 15

C) Smooth endoplasmic reticulum

Question 16

What are the two types of endoplasmic reticulum?

Answer 16

Rough and smooth

Question 17

Fill in the blank: __________ are the ‘digestive system’ of the cell.

Answer 17

Lysosomes

Question 18

True or False: Ribosomes can be found free-floating in the cytoplasm.

Answer 18

True

Question 19

What is the main function of the cell membrane?

Answer 19

To protect the cell and control movement of substances

Question 20

Multiple choice: Which organelle is primarily involved in energy production? A) Nucleus B) Mitochondria C) Ribosome D) Golgi apparatus

Answer 20

B) Mitochondria

Question 21

What is the function of vacuoles in plant cells?

Answer 21

Storage of substances and maintaining turgor pressure

Question 22

Fill in the blank: The __________ is involved in the synthesis of lipids.

Answer 22

Smooth endoplasmic reticulum

Question 23

What structure is selectively permeable?

Answer 23

Plasma membrane

Question 24

True or False: All cells have a cell wall.

Answer 24

False

Question 25

What is the function of the cytoskeleton?

Answer 25

Provides structural support and shape to the cell

Question 26

Multiple choice: Which of the following is NOT an organelle? A) Mitochondria B) Ribosome C) Cytoplasm D) Nucleus

Answer 26

C) Cytoplasm

Question 27

What is the primary role of chloroplasts?

Answer 27

To convert solar energy into chemical energy through photosynthesis

Question 28

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

Answer 28

Cytoskeleton

Question 29

True or False: The Golgi apparatus is involved in the secretion of hormones.

Answer 29

True

Question 30

What type of cells lack membrane-bound organelles?

Answer 30

Prokaryotic cells

Question 31

Multiple choice: Which organelle is responsible for the synthesis of ATP? A) Ribosome B) Chloroplast C) Mitochondria D) Nucleus

Answer 31

C) Mitochondria

Question 32

what are stem cells?

Answer 32

Stem cells are undifferentiated cells that have the ability to develop into different cell types