cell structure and function

Question 1

Plasma membrane

Answer 1

the outer boundary of the cell which act as a selectively permeable barrier.

Question 2

Cytoplasm

Answer 2

intracellular fluid packed with organelles, small structures that perform specific cell functions.

Question 3

Nucleus

Answer 3

the central and most important part of a cell it controls the cellular activities

Question 4

Chromatin

Answer 4

Chromatin is the material that makes up a chromosome that consists of DNA and protein.

Question 5

Smooth endoplasmic reticulum

Answer 5

an organelle found in cells. It’s main functions are the synthesis of lipids, steroid hormones, the detoxification of harmful metabolic by-products and the storage and Metabolism of calcium ions within a cell

Question 6

nuclear envelope

Answer 6

membrane is a double membrane that encloses the cell’s nucleus. Separate the chromosomes from the rest of the cell.

Question 7

Rough endoplasmic reticulum

Answer 7

its function is to produce proteins for the rest of the cell to function

Question 8

Golgi apparatus

Answer 8

esponsible for transporting, modifying and packaging proteins and lipids

Question 9

Peroxisome

Answer 9

contain powerful oxidase enzymes that use molecular oxygen to detoxify harmful or toxic substances.

Question 10

Intermediate filaments

Answer 10

are three types of cytoskeletal elements. They work together to enhance both structural Integrity, cell shape, and sew in organelle motility

Question 11

Microtubules

Answer 11

give shape to cells they provide cell movement which includes the contraction in muscle cells. They are involved in mitosis cell motility and intracellular transport

Question 12

centrioles

Answer 12

produce cilia during interphase and the aster in the spindle during cell division.

Question 13

Centrosomes

Answer 13

are organelle that regulates the cell cycle via the Assembly of microtubules. Each cell has a single centrosome that is copied or duplicated during S phase

Question 14

lysosomes

Answer 14

A key organelle involved in digestion and waste removal

Question 15

mitochondria

Answer 15

store calcium for cell signaling activities, generate heat, and mediates cell growth and death.

Question 16

Nucleolus

Answer 16

main function is ribosomal RNA synthesis

Question 17

Vacuole

Answer 17

perform functions such as storage, ingestion, digestion, excretion and expulsion of excess water

Question 18

chloroplast

Answer 18

organelles that convert light energy into relatively stable chemical energy

Question 19

Dictyosomes

Answer 19

store proteins in the Golgi apparatus