Botany Mcqs Practice Test

Botany Mcqs Practice Test

The osmosis means

flow of solutes from low concentration to higher concentration
flow of solutes from higher concentration to low concentration
flow of solvents from low concentration to high concentration
flow of solvent from high concentration to low concentration

Water is absorbed through the root hairs by means of :

respiration
tugor pressure
transpiration
osmosis

A land biome is identified primarily by its

climax vegetation
pioneer organisms
dominanant animals
food chains

Radial vascular bundles occur in:

monocot stem
dicot stem
monocot leaf
monocot root

Transpirational pull in land plants is a physical factor associated with upward transport in the

phloem
cambium
xylem
cotyledon

Plants cells differ from animals cells in which one important way?

plants cells all possess chlorophyll
plants cells have a large central vacuole
plants cells are bigger
plants cells are not so specialized

The edible fungi are

rusts
carrot
Mildews
mushrooms

The vacule of a plant cell contains

water
cytoplasm
the nucleus
water plus dissolved chemical

Transpiration takes place from:

steam
leaves
all parts of the plants
only arial part of the plant

Atibiotics are mostly produced commerciatty from?

bacteria
viruses
algae
fungi

The presence of lignin in the cell wall is the characteristic feature of:

woody tissue
phloem
soft tissue
cortex

genes are made of:

histone
polynucleotides
hydrocarbons
Lipoprotein

The path of translocation of mineral ions in the plant is through:

cortex
phloem
pith
endodermis

Wilting of a plant results from excessive:

absorption
phytosynthesis
respiration
transpiration

The process in which water is split during photosynthesis is

photolysis
plasmolysis
hydrolysis
hemolysis
 

Botany Mcqs Practice Test

Botany Mcqs Practice Test

Botany Mcqs Practice Test

What should happend if thin sliec of suger beet is plased in a concentrated solution of sodium cloride?

it should lose water from the cells
It should become turgid
it should niether absorb water nor lose water
it should absorb water from salt solution

Saprophytes break down dead organic mater by secreting

hormones
enzymes
auxin
bacteria

The presence of lignin in the cell wall is the characteristic feature of:

woody tissue
phloem
soft tissue
cortex

Stomata in moss are present in

leaf
stem
lower part of capsule
uper part of capsule

Transpiration takes place from:

steam
leaves
all parts of the plants
only arial part of the plant

The size of the stomates in a leaf is controlled by the

xylem cells
phloem cells
guard cels
heterotrophic cells

Why cambium is considerd a lateral meristem?

Because it gives rise to lateral branches
Because it increase the birth of the plant
Because it increase the length of the plant
Because it increase the height and the diameter of the plant

in respiration pyruvic acid is

Formed only when oxygen is available
product of glycolysis
broken doun into carbon fragment
a result of protein breakdown

Opning of stomata is due to:

turgidity of guard cells
size of guard cells
number os guard cells
amount of corbon_dioxide in atmosphare

The tissue responsible for translocation of food material is:

Vessels
sieve tubes
parenchyma
fibres

Which of the following is a rapid type of absorption?

passive absorption
active absorption
salt absorption
root tip absorption

The vasculer bundles are surrounded by a scelrenchymatous sheath is:

dicot stem
monocot stem
dicot root
monocot stem

The living part of plant cell is called?

cell wall
protoplasm
hyloplasm
cell sap

If genes for two different traits are located on the same chromosome , they are said to be

allelic
linked
segregated
intermediate

Radial vascular bundles occur in:

monocot stem
dicot stem
monocot leaf
monocot root
 

Botany Mcqs Practice Test