141.
What is the function of the central vacuole in plants?
A
Stores water and dissolved nutrients
B
Carries out photosynthesis
C
Releases energy from stored nutrients
D
Protects the genetic material of the cell
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What is the function of the central vacuole in plants?
Stores water and dissolved nutrients
Carries out photosynthesis
Releases energy from stored nutrients
Protects the genetic material of the cell
What is meant by multicellular ?
The single celled organism.
The cytoplasmic projection which helps in locomotion & feeding of Amoeba
Organisms made of more than one cell.
A group of tissues which together perform specific function
What is autolysis ?
Self-replication
Self-digestion
Self-food producers
Food decomposer
What are suicide bags?
Plastids
Mitochondria
Lysosomes
Ribosomes
Vacuole is surrounded by:
plasmalemma
cell wall
tonoplast
plasmodesmata
The transportation of materials in the cell is done by
Golgi complex
lysosomes
mitochondria
endoplamic reticulum
Select the odd group from the following.
Chlamydomonas, Paramecium, bacteria
Fungi, Plants, Animals
Sperm, Neuron, Amoeba
Schleiden, Schwann, Virchow
Select the correct pair that comprises of only unicellular organisms
Amoeba and Rhizopus
Paramecium and Chlamydomonas
Bacteria an fungi
Plants and animals
Select the correct match:
Cell was first discovered - 1839
The term protoplasm was coined - 1665
The nucleus was discovered - 1831
Cell theory was proposed - 1674
Root hairs absorb water from soil by the process of
plasmolysis
diffusion
osmosis
endocytosis
Plasma membrane is composed of
cellulose and lipids
lipids and proteins
peptidoglycan and lipids
cellulose and proteins
Largest number of cell bodies of neuron in our body are found in:
retina
spinal cord
brain
tongue
In chloroplasts, light is captured by
thylakoids within grana
grana within cisternae
cisternae within grana
grana within thylakoids
If the ribosome of a cell are destroyed then
respiration will not take place
fats will not be stored
carbon assimilation will not occur
proteins will not be formed
Identify the organelle that exists only in plant cell but NOT in an animal cell?
Centriole
Chloroplast
Golgi apparatus
Ribosome
Find the correct statement:
Many fungi are single celled
Most cells are very large
Animals have many vacuoles
Chemical composition of Prokaryotes and eukaryotes vary
Find the best definition of vacuole ?
A fluid filled structure surrounded by membrane.
A thread like structure containing nuclear material.
A jelly like substance which is present between nucleus and cell membrance.
The basic structural units of an organism.
ER remains associated with
dictyosomes
mitochondria
nuclear membrane
chloroplast
Chromosomes are composed of
DNA and protein
DNA and sugar
sugar and protein
chromatin
Chemical nature of carrier molecules facilitating transport across plasma membrane is:
starchy
sugary
proteinaceous
fatty acidic