NSO Level 1- Science Olympiad (SOF) Class 7: Questions 578 - 580 of 593

Access detailed explanations (illustrated with images and videos) to 593 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 350.00 or

How to register?

Question number: 578

» Respiration in Organisms

Edit

Appeared in Year: 2012

Match List-Ⅰ List-Ⅱ▾

Question

Match Column – I with Column – II and select the correct option from the codes given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Liver

(i)

Breaks down proteins into peptides

(B)

Pancreas

(ii)

Breaks down starch into sugar

(C)

Intestinal gland

(iii)

Breaks down fats

(D)

Salivary gland

(iv)

Breaks down peptides into amino acids

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iii)
  • (ii)
  • (iv)

b.

  • (ii)
  • (i)
  • (iv)
  • (iii)

c.

  • (iv)
  • (ii)
  • (iii)
  • (i)

d.

  • (iii)
  • (iv)
  • (i)
  • (ii)

Question number: 579

» Heat

Edit

Appeared in Year: 2012

MCQ▾

Question

The temperature shown by a mercury-in-glass thermometer increase. Which of the following is constant?

Choices

Choice (4) Response

a.

Volume of the mercury

b.

Mass of the mercury

c.

Internal energy of the mercury

d.

Density of the mercury

Question number: 580

» Nutrition in Plants and Animals

Edit

Appeared in Year: 2012

MCQ▾

Question

Garima took a plant and placed it in the dark for 24 hours to de-starch its leaves. After that, she performed an activity as shown here.

Image shows plant placed in the dark for to destarch its leaves

Image Shows Plant Placed in the Dark for to Destarch Its Leaves

This diagram shows plant placed in the dark for to de-starch its leaves

(i) She put one leaf (marked as X) in clean plastic bag containing soda lime and another leaf (marked as Y) in a clean plastic bag containing water. The she left the plant in sunlight for 6 hours.

(ii) She took out the leaves and boiled them in alcohol.

(iii) She performed the iodine test on the leaves.

Select the option with correct iodine test results and the conclusions of the activity.

Choices

Choice (4) Response

a.

Table shows iodine test on the leaves

Table shows iodine test on the leaves

Leaf X

(Iodine test)

is necessary for photosynthesis

Leaf Y

(Iodine test)

is necessary for photosynthesis

Yes

No

b.

Table shows iodine test on the leaves

Table shows iodine test on the leaves

Leaf X

(Iodine test)

is necessary for photosynthesis

Leaf Y

(Iodine test)

is necessary for photosynthesis

No

Yes

c.

Table shows iodine test on the leaves

Table shows iodine test on the leaves

Leaf X

(Iodine test)

is necessary for photosynthesis

Leaf Y

(Iodine test)

is necessary for photosynthesis

Yes

Yes

d.

Table shows iodine test on the leaves

Table shows iodine test on the leaves

Leaf X

(Iodine test)

is necessary for photosynthesis

Leaf Y

(Iodine test)

is necessary for photosynthesis

No

No

Developed by: