Common Monosaccharides

Q.

Which among the following is a non-reducing sugar?

1. Lactose

2. Maltose

3. Sucrose

4. Fructose

Q. Haplo-diplontic life cycle is seen in

1. bryophytes, pteridophytes and kelps
2. bryophytes only
3. bryophytes and pteridophytes only
4. pteridophytes only

Q. The alternation of gametophytic generation from a sporophytic generation occurs as a result of

1. oogamy
2. mitosis
3. meiosis
4. isogamy

Q. Fucus, the brown alga has a diplontic life cycle.

1. True
2. False

Q. Male and female gametophytes do not have an independent free living existence in:

1. Algae
2. Angiosperms
3. Pteridophytes
4. Bryophytes

Q. Haplo-diplontic life cycle is seen in

1. bryophytes, pteridophytes and kelps
2. bryophytes and pteridophytes only
3. pteridophytes only
4. bryophytes only

Q. Which of the following is a ketose sugar?

1. Fructose
2. None of the above
3. Galactose
4. Glucose

Q. Which of the following is fruit sugar?

1. Lactose
2. Fructose
3. Maltose
4. Deoxyribose

Q. The alternation of gametophytic generation from a sporophytic generation occurs as a result of

1. oogamy
2. mitosis
3. isogamy
4. meiosis

Q.

The difference between alpha and beta forms of pyranose ring is that

1. The oxygen atoms are more in alpha form

2. They are mirror images of each other

3. In the β form, the OH group in the 1 position (the far right) is down, and, in the α form, the OH group in the 1 position (the far right) is up

4. In the α form, the OH group in the 1 position (the far right) is down, and, in the β form, the OH group in the 1 position (the far right) is up

Q.

In which of the following groups of plants do the gametophytes lack an independent free - living existence?

1. Bryophytes and Angiosperms
2. Gymnosperms and Angiosperms
3. Bryophytes and Pteridophytes
4. Pteridophytes and Angiosperms

Q. The dominant photosynthetic phase in a haplontic life cycle is the

1. zygote
2. sporophyte
3. gamete
4. gametophyte

Q.

Independent gametophyte is not found in:

1. The first seed plants.

2. Sea weeds.

3. The amphibians of plant kingdom.

4. The first vascular plants.

Q. Gametophytic phase is small, short-lived and photosynthetic in pteridophytes.

1. True
2. False

Q. The sporophyte is a dominant phase in

1. all land plants
2. all spermatophytes only
3. all vascular cryptogams only
4. all spermatophytes and pteridophytes

Q. Life cycle of Ectocarpus and Fucus respectively are:

1. Diplontic, Haplo-diplontic
2. Haplo-diplontic, Diplontic
3. Haplontic, Diplontic
4. Haplo-diplontic, Haplontic

Q.

The life cycle in which haploid gametophyte phase is dominant is termed as-

1. Haplo-diplontic

2. Triplontic

3. Diplontic

4. Haplontic

Q. Which of the following algae exhibit diplontic life cycle?

1. Fucus
2. Ectocarpus
3. Volvox
4. Spirogyra

Q. Which of the following statements about haplontic life cycle is false?

1. There are no free living sporophytes
2. Haploid spores divide mitotically to form the gametophyte
3. There is no zygote formation
4. Sporophytic generation is represented only by the one-celled zygote

Q.

Most of the energy required by the human body comes from:

1. proteins

2. glycogen storage

3. breakdown of lipids

4. breakdown of starch to glucose

Q. Match the columns I and II and choose the correct combination from the options given: Column I Column II

a. Haplontic life cycle	i. Gymnosperms and angiosperms
b. Diplontic life cycle	ii. Spirogyra
c. Haplo-diplontic life cycle	iii. Bryophytes and pteridophytes

1. a-ii, b-iii, c-i
2. a-iii, b-i, c-ii
3. a-ii, b-i, c-iii
4. a-i, b-ii, c-iii

Q. Which of the following algae shows haplo-diplontic life cycle?

1. Fucus
2. Polysiphonia
3. Volvox
4. None of the above

Q. Gametes are formed through a type of cell division called meiosis

1. False
2. True

Q. Which of the following is a keto sugar?

1. Glyceraldehyde
2. Fructose
3. Glucose
4. Ribose

Q. The first cell of the sporophytic and gametophytic generation in plants are

1. spore and zygote respectively
2. sperm and egg respectively
3. zygote and spore mother cell respectively
4. zygote and spore respectively

Q. Identify the labels A, B, C and D in the figure given below.

1. A - Sporophyte; B - Meiosis;
   C - Gametogenesis; D - Zygote
2. A - Sporophyte; B - Mitosis;
   C - Gametogenesis; D - Zygote
3. A - Sporophyte; B - Meiosis;
   C - Gametogenesis; D - Endosperm
4. A - Gametophyte; B - Meiosis;
   C - Gametogenesis; D - Zygote

Q. Which of the following is an example of monosaccharide?

1. Galactose
2. Lactose
3. Maltose
4. Sucrose

Q. What change occured during evolution of sporophytes in plant kingdom?

1. Gradual increase of fertile part of sporophytic tissue
2. Gradual sterilization of gametophytic tissues
3. Gradual sterilization of sporophytic tissues
4. Gradual reduction of sporophyte

Q.

A dominant diploid sporophyte is found in the life cycle of _______.

1. bryophytes
2. gymnosperms
3. angiosperms
4. Both (b) and (c)

Q. Identify the labels A, B, C and D in the figure given below.