organelles

Question 1

• semi permeable membrane
• maintains shape& size of the cell, protects internal contents of the cell, maintains homeostasis

Answer 1

Plasma membrane

Question 2

non-living & outermost covering of a cell.
• provides definite shape, strength, and rigidity. Prevents drying up of cells.

Answer 2

Cell Wall

Question 3

• Dense spherical body located near the centre of the cell
• Has a double layered covering called __________
• Controls all the cell activities like metabolism, protein synthesis, growth & cell division

Answer 3

Nucleus
Nuclear membrane

Question 4

In Nucleus, there is a colorless dense sap present inside known as ________. This contains round shaped Nucleulos and a network of _______. This is composed of DNA & Protein histone.

Answer 4

Nucleoplasm
Chromatin fibres

Question 5

Contains stretches of DNA called genes

Answer 5

Chromosomes

Question 6

This transfers the hereditary information from one generation to the next.

Answer 6

Genes

Question 7

Jelly-like material formed by 80% of water; Present between the Plasma membrane & the nucleus. Contains a clear liquid portion called ______ and various particles

Answer 7

Cytoplasm
Cytosol

Question 8

Networks of Tubular & Vesicular structures w/c are interconnected with one another. It gives internal support to the cytoplasm

Answer 8

Endoplasmic Reticulum

Question 9

Rough endoplasmic reticulum sythesize __________

Answer 9

secretory proteins and membrane proteins

Question 10

Smooth Endoplasmic reticulum synthesize ________

Answer 10

lipids

Question 11

It’s discovered by Camillo Golgi. Formed by stacks of 5-8 membranous sacs that are called _______

Functions:
modifies, sorts, & packs materials synthesized in the cell

Answer 11

Golgi Body
Cisternae

Question 12

Small, spherical, single membrane sac filled with hydrolytic enzymes.

function:
helps in digesting of large molecules

Answer 12

Lysosomes

Question 13

single membrane sac filled with liquid/sap

functions:
store various substances including waste products; maintains osmotic pressure of the cell

Answer 13

Vacuoles

Question 14

small, rod-shaped organelles bounded by two membranes- inner&outer

function:

it synthesizes energy rich compound ATP (provide energy for the vital activities of living cells)

Answer 14

Mitochondria

Question 15

double membrane-bound organelles found inside plants and some algae. They are responsible for activities related to making and storing food; often contain different types of pigments that can change the colour of the cell

Answer 15

plastids

Question 16

plastids that produce &store pigments; responsible for diff colors found in leaves, fruits, and veggies

Answer 16

Chromoplasts

Question 17

colorless plastids that store foods

Answer 17

Leucoplasts

Question 18

double membrane organelle found in plant cells. It converts light energy to chemical energy in the form of food and provides green color to leaves, stems, and veggies.

Answer 18

Chloroplast

Question 19

membrane bound organelle present near the nucleus. Consists of two structures called ________.

Forms spindle fibres which helps in the movement of chromosomes.

Answer 19

Centrosome
Centrioles

Question 20

Formed by microtubules and microfilaments. It determines the shape of the cell; give structural strength to the cell

Answer 20

Cytoskeleton

Question 21

Nucleus is undeveloped
Only one chromosome is present

Answer 21

Prokaryotic Cell

Question 22

Nucleus is well- developed
More than one chromosome is present

Answer 22

Eukaryotic Cell