Cell structure and function

Multiple Choice

The nuclear envelope _________

• blocks all material to move into and out of the nucleus

• does not allow material to move into and out of the nucleus

• allows material to move into and out of the nucleus

Multiple Choice

The nucleus is surrounded by a nuclear envelope composed of ________

• one membrane

• two membranes

• three membranes

Multiple Choice

In the nucleus the DNA molecule is packaged into thread-like structures called__________

• RNA

• chromosomes

• chromatin

Multiple Choice

Chromosomes contain the _______________ that is passed from one generation of cells to the next

• genetic information

• proteins

• enzymes

Multiple Choice

The main function of the nucleus is _______

• to provide oxygen to the cell

• to provide energy to the cell

• to control cell's different functions

Multiple Choice

cell membrane is made of__________ bilayer

• carbohydrates

• lipid

• protein

Multiple Select

The cell membrane functions are______

Choose two answers

• It regulates what enters and leaves the cell and also protects and supports the cell

• It separates the inside of the cell from the outside

• It replicates DNA

• It controls all cell's functions

Multiple Choice

Cytoplasm is mainly composed of ________

• Enzymes

• water, salts, and proteins. 

• minerals

Multiple Choice

Rough endoplasmic reticulum is given this name because of_________

• the ribosomes found on its surface.

• the hair like structure found on its surface.

• the pores found on its surface.

Multiple Choice

lipid components of the cell membrane are assembled in_______

• Endoplasmic reticulum

• Cytoplasm

• Nucleus

Multiple Choice

Smooth endoplasmic reticulum is known as (smooth ER) because________

• It has ribosomes on its surface.

• ribosomes are not found on its surface.

• it is does not have lipids

Multiple Choice

In many cells, the smooth ER contains collections of enzymes that perform specialized tasks, such as detoxification of drugs

• True

• False

Multiple Choice

Ribosomes produce __________ by following coded instructions that come from DNA.

• carbohydrates

• lipids

• proteins

Multiple Select

Ribosomes can be found _______

Choose all correct answers

• floating in the cytoplasm.

• on the endoplasmic reticulum.(Rough ER. )

• inside the nucleus

• inside the mitochondria

Multiple Choice

_________store materials such as water, salts, proteins, and carbohydrates.

• Vacuoles

• Cell membrane

• Nucleus

Multiple Choice

Lysosomes main function is _________

• to build up proteins

• to remove waste form the cell

• to replicate DNA

Multiple Select

Lysosomes breaks down________

Choose all correct answers

• Lipids and proteins

• Cell wall

• Carbohydrates and Worn-out organelles

• Cell membrane

Multiple Select

Cytoskeleton is responsible for _______

• giving the cell its shape

• Removing waste from the cell

• helping in transporting materials between different parts of the cell

• breaking down proteins

Multiple Choice

_____________packages and sorts proteins before they are sent to their destination inside or outside the cell.

• Golgi apparatus

• Cytoskeleton

• Cytoplasm

Multiple Choice

The main function of mitochondria is_______

• to provide energy to the cell

• to build up proteins

• to protect the cell against infection

Multiple Choice

Green chlorophyll molecules in chloroplastss ___________

• converts light energy of the sun into water

• converts light energy of the sun into carbon dioxide 

• converts light energy of the sun into sugars that can be used by cells. 

Multiple Select

Cell wall exits in _______

Choose all correct answers

• Animal cell

• Plant cell

• bacterial cell

• fungi cell