Nutrition in Plants

Slimy green patches are formed in ponds by

1. Fungi
2. Algae
3. Bacteria
4. Lichens

During photosynthesis, carbohydrates get converted to

1. Proteins
2. Starch
3. Carbohydrates
4. All of them

Stomata is surrounded by

1. Guard cells
2. Chlorophyll
3. Carbohydrates
4. None of them

Living organisms are made up of tiny units called

1. Nucleus
2. Cell
3. Cytoplasm
4. Cell membrane

Variegated leaf means

1. green leaf
2. leaf having both green and white or yellow part
3. Red leaf
4. Black leaf

Match: I.Nutrition, II.Parasite, III.Saprophyte, IV.Symbiosis with A.Organism deriving food from dead matter, B.Association of two organisms both benefited, C.Process of obtaining food, D.Organism deriving food from living body of another

1. I-B, II-C, III-D, IV-A
2. I-C, II-D, III-A, IV-B
3. I-D, II-A, III-B, IV-C
4. I-A, II-B, III-C, IV-D

Photosynthesis is a

1. natural process
2. chemical process
3. natural chemical process
4. physical process

Which of the following season provides ideal conditions for fungi to grow?

1. Cold weather
2. Raining season
3. Hot and humid weather
4. Both raining season and hot and humid weather

Amarbel is a

1. host
2. parasite
3. autotroph
4. saprotroph

What will happen on the earth in the absence of photosynthesis?

1. Fruits are not available to eat
2. We cannot get relief under the shadow of trees in hot summer days
3. All the flowers will be destroyed
4. Life would be impossible on earth

Which one of the following organisms is a producer?

1. Yeast
2. Cow
3. Grass
4. Paramecium

Heterotrophic plants are those which

1. feed on dead and decaying organisms
2. draw nutrition from the living tissues of other organisms
3. depend on sources other than themselves for food
4. all of these

Farmers need to add nitrogen fertilizers to the soil in which

1. moong beans are grown
2. peas are grown
3. gram are grown
4. wheat are grown

We will observe some green patches on a moist piece of bread if we leave it in a moist warm place for 2-3 days. The green patches are

1. green leaves
2. atmospheric nitrogen
3. water mixed with dust particles
4. fungi

Which of the following is a false statement?

1. Rhizobium can take atmospheric nitrogen and convert it into a soluble form
2. Though nitrogen gas is available in plenty in the air, plants cannot use it directly
3. Plants need nitrogen in a soluble form
4. Rhizobium feeds on atmospheric nitrogen

In a lichen which of the following is autotrophic?

1. Algal partner
2. Fungal partner
3. Both algal and fungal partners
4. None of these

Which of the following part/s of a desert plant perform the function of photosynthesis?

1. Leaves
2. Stem
3. Both leaves and stem
4. None of these

The green colour pigment in the leaves is

1. chlorophyll
2. anthocyanin
3. protoplast
4. chloroplast

Which of the following is not true about saprophytic plants?

1. These plants are green in colour
2. These plants are commonly seen during and after rain
3. Yeast shows saprophytic mode of nutrition
4. These plants secrete digestive juices on the dead and decaying organic matter

Saprophytic mode of nutrition is found in

1. lichens
2. bladderwort
3. mushroom
4. cuscuta

Two different organisms living together and both benefiting from each other, are known as

1. saprophytic
2. symbiotic
3. parasitic
4. heterotrophs

Pitcher plant is green in colour but it eats insects to complete the requirement of

1. water
2. carbon dioxide
3. nitrogen
4. oxygen

Which of the following is the function of stomata?

1. Carbon dioxide enters the leaf through stomata
2. Oxygen discharges into the atmosphere from the leaf through stomata
3. Food material synthesised in leaf is discharged into the atmosphere through stomata
4. Water enters the leaf through stomata

Identify X in the reaction: CO2 + Water (light/chlorophyll) → X + Oxygen

1. Vitamin
2. Protein
3. Carbohydrate
4. Minerals

Which of the following raw material is not necessary for photosynthesis?

1. CO2
2. H2O
3. Sunlight
4. Nitrogen

In an experiment with Hydrilla plants, one kept in sunlight (B) and one in shade (A), which will show more oxygen bubbles in 10 minutes?

1. More bubbles in A
2. More bubbles in B
3. No bubbles in both A and B
4. Same number of bubbles in A and B

Which one of the following is not an insectivorous plant?

1. Bladderwort
2. Lichens
3. Pitcher Plant
4. Sundew