Explore topic-wise MCQs in Life Sciences.

This section includes 533 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.

501.

Layer of sporophyte tissue that envelops and protects megasporangium is called

A. cuticle
B. stem
C. integument
D. xylem
Answer» D. xylem
502.

Which of following is mass of green one cell thick filaments formed by mosses?

A. filaments
B. stoma
C. stomata
D. protonema
Answer» E.
503.

An angiosperm structure that is specialized for reproduction is called

A. stems
B. seed
C. flower
D. leaf
Answer» D. leaf
504.

A structure containing plant embryo and its food supply is called

A. seed
B. spores
C. Stromalite
D. leaf
Answer» B. spores
505.

Male gamates reach to embryo sac by help of

A. pedicel
B. petal
C. pollen tube
D. pith
Answer» D. pith
506.

Dull colored, smaller and non-scented flowers rely upon

A. insect-pollination
B. wind pollination
C. self pollination
D. cross pollination
Answer» C. self pollination
507.

Edge of capsule of sporangium is made up of two parts, annulus and the

A. stomium
B. sori
C. sporophyll
D. chlorophyll
Answer» B. sori
508.

Rapid folding of leaflets upon touching is shown in

A. mimosa
B. adiantum
C. liver-worts
D. mosses
Answer» B. adiantum
509.

Lipase act upon the fats, in germinating seeds to produce

A. fatty acids
B. glycerol
C. glucagon
D. lipids
Answer» D. lipids
510.

Plants which produce flowers, fruits and seeds are from class

A. Angiospermae
B. gymnospermae
C. schlerenchyma
D. Both a and b
Answer» B. gymnospermae
511.

In grass Ischaemum, the lower spikelet is

A. sessile
B. stalked
C. smaller
D. filament
Answer» B. stalked
512.

Zaemays and corns belong to family name

A. Rosaceae
B. Acacia
C. Poaceae
D. Solanaceae
Answer» D. Solanaceae
513.

People experiencing muscle wasting are a case of

A. malnutrition
B. starvation
C. over eating
D. over nutrition
Answer» C. over eating
514.

Bilaterally symmetrical flower is of

A. hibiscus
B. clitoria
C. allamanda
D. capsicum
Answer» C. allamanda
515.

Androecium is also known as

A. stamen
B. pistil
C. filament
D. anther
Answer» B. pistil
516.

Cotton is an example of

A. plumed seed
B. plumed fruit
C. radicated seed
D. radicated fruit
Answer» B. plumed fruit
517.

Piliferous layers refers to the

A. cuticle
B. cortex
C. pith cells
D. root hairs
Answer» E.
518.

Plants which produce seeds are termed as

A. spermatophytes
B. gametophytes
C. ovulophytes
D. ovarophytes
Answer» B. gametophytes
519.

Groups of sporangi are found on underside of reflexed lobes of margins of leaflets and protected by bent margin of leaflet is called

A. sori
B. sertoli
C. tini
D. petioli
Answer» B. sertoli
520.

Egg and male gametes fuse together to develop into an embryo and endosperm nucleus by process

A. conjugation
B. fertilization
C. double fertilization
D. triple fertilization
Answer» D. triple fertilization
521.

Male gametes of bryophytic plant are called

A. antherozoids
B. archegonia
C. spermatogonia
D. spermophytes
Answer» B. archegonia
522.

Tobacco pipes are made from wood

A. sheesham
B. pyrus patia
C. pine
D. timber
Answer» C. pine
523.

MELIA,_A_FLOWER_HAS_A_PISTIL_OF_TWO_OR_MORE_FUSED_CARPELS,_WHICH_OF_THE_FOLLOWING_CONDITION_DESCRIBE_THIS??$

A. One carpel
B. Fused carpel
C. Fused androcium
D. One androcium
Answer» C. Fused androcium
524.

WHICH_OF_THE_FOLLOWING_IS_NOT_THE_PART_OF_FOUR_WHORLS_OF_FLOWER_LEAVES??$

A. Calyx
B. Corolla
C. Androcium
D. Stem
Answer» E.
525.

1-B, 2-A, 3-D, 4-C$

A. 1-D, 2-C, 3-A, 4-B
B. 1-C, 2-A, 3-B, 4-D
C. 1-A, 2-D, 3-B, 4-C
Answer» C. 1-A, 2-D, 3-B, 4-C
526.

Double fertilization is a characteristic feature of which of these groups of plants?

A. Chlorophyta
B. Thallophyta
C. Angiosperm
D. Bryophytes
Answer» D. Bryophytes
527.

Which of the following is also known as fruitless plants?

A. Pteridophyte
B. Bryophytes
C. Angiosperm
D. Gymnosperm
Answer» E.
528.

Which of the following is a seedless vascular plant?

A. Gymnosperm
B. Bryophytes
C. Pteridophytes
D. Angiosperm
Answer» D. Angiosperm
529.

Bryophyte have flask shaped archegonia.

A. True
B. False
Answer» B. False
530.

Which of the following spores is motile in nature?

A. Zoospores
B. Oomycetes
C. Aplanospores
D. Hepdnaspores
Answer» B. Oomycetes
531.

Which of the following class of algae consists of alginic acid in their cell wall component?

A. Green algae
B. Red algae
C. Lichens
D. Brown algae
Answer» E.
532.

Chlamydomonas is ________

A. Green algae
B. Red algae
C. Brown algae
D. Lichens
Answer» B. Red algae
533.

Which of the following does NOT belong to the class of Cryptogamae (plant without seeds)?

A. Bryophytes
B. Thallophyta
C. Angiosperm
D. Ptrediophytes
Answer» D. Ptrediophytes