Plasma Membrane Cell Membrane

The plasma membrane is made up of

• phospholipids

• phospholipids and proteins

• proteins

• lipids

A cell will swell up if

• the concentration of water molecules in the cell is higher than the concentration of water molecules in the surrounding medium.

• the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.

• the concentration of water molecules is same in the cell and in the surrounding medium.

• concentration of water molecules does not matter.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

The proteins and lipids, essential for building the cell membrane, are manufactured by

• rough endoplasmic reticulum

• golgi apparatus

• plasma membrane

• mitochondria

chose the correct option for the labelled parts

• a. golgi apparatus

  b. cell membrane

  c. cellulose

  d. vacuole

  e. chloprophyll

• a. mitochondria

  b. cell wall

  c. outer membrane

  d. gas vacuole

  e. chloroplast

• a. mitochondria

  b. cytoplasm

  c. cell wall

  d. vacuole

  e. chloroplast

• a. mitochondria

  b. plasma membrane

  c. cell wall

  d. vacuole

  e. chloroplast

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

What is the role of integral proteins in the plasma membrane?

• Energy production

• Structural support

• Transport of molecules

• DNA synthesis

Which component of the plasma membrane is primarily responsible for its selective permeability (allowing only certain things in) ?

• Carbohydrates

• Proteins

• Lipids

• Nucleic acids

What is the primary structural component of the plasma membrane?

• Proteins

• Phospholipids

• Carbohydrates

• Nucleic acids

Which of the following best describes the fluid mosaic model?

• A rigid structure with fixed components

• A flexible layer with a variety of components that move freely

• A solid layer with immovable proteins

• A static layer with uniform components

What is the role of glycoproteins in the plasma membrane?

• Energy storage

• Cell recognition

• DNA replication

• Photosynthesis

What is the function of cholesterol in the plasma membrane?

• Provides energy

• Acts as a receptor

• Maintains fluidity

• Transports molecules