Biology – Class 11 Mock Test 2

10%

Question 1 of 10

1. Which among the following is incorrect about phyllotaxy?

Opposite phyllotaxy is present in China rose

In alternate phyllotaxy, a single leaf is present at each node

The arrangement of leaves in the plant is called phyllotaxy

In whorled phyllotaxy, multiple leaves are present at each node

Question 1 of 10

Question 2 of 10

2. Which among the following is correct about the following structure?

a-Petiole; b-Leaf base; c–Leaf blade

a-Leaf base; b-Lamina; c-Petiole

a-Petiole; b-Lamina; c-Leaf base

a-Petiole; b-Leaf base; c-Lamina

Question 2 of 10

Question 3 of 10

3. Which among the following is incorrect about Haplo-diplontic life cycle?

Ectocarpus exhibits haplo-diplontic life cycle

This kind of life cycle is exhibited by Pteridophytes and Bryophyte

Both sporophytic and gametophytic phases are multi-cellular and have independent existence

In this life cycle, both sporophytic phase and gametophytic phase have equal life time

Question 3 of 10

Question 4 of 10

4. The branch of biology that deals with the internal structure and parts of an organism is called “Anatomy”.

True

False

Question 4 of 10

Question 5 of 10

5. The property of emitting light from a living organism is called as ________

Phosphorescence

Cytoluminescence

Biophosphorescence

Bioluminescence

Question 5 of 10

Question 6 of 10

6. Which among the following is incorrect about arrangement of cells in embryo?

If the number of cell layers in blastula is three in number, i.e. ectoderm, mesoderm and endoderm, then such organisms are considered to triploblastic

The word “blasted” derives its origin from the word blastula which means a hollow ball of cells formed during the early stage of embryo

If the number of cell layers in blastula is two in number, i.e. ectoderm and endoderm, then such organisms are considered to diploblastic

In diploblastic organisms, mesoglea, a well differentiated substance, is present between endoderm and ectoderm

Question 6 of 10

Question 7 of 10

7. Spines in cactus are due to _______

modifications of leaves

modifications of flower

modifications of stem

modifications of bud

Question 7 of 10

Question 8 of 10

8. Which among the following is the tallest tree?

Deodar

Red wood tree

Cycads

Pine

Question 8 of 10

Question 9 of 10

9. Mesoderm gives rise to ______

Urinary bladder

Skin

Muscular tissues

CNS

Question 9 of 10

Question 10 of 10

10. Which among the following is not correct about flower?

A flower has 4 whorls arranged successively i.e. calyx, corolla, androecium and gynoecium

Members of calyx and corolla are called as sepals and petals respectively

Tulip is an example of polypetalous

In polysepalous, the sepals are arranged in a free manner whereas in gamosepalous, the sepals are united

Question 10 of 10