TARGET SSC: Biology Test- 5

1 Comments 1650 view(s)
ssc-cgl-2015-notification

TARGET SSC: Biology Test- 5

1. Which source has been particularly fruitful in finding anti-tumour agents such as Bryostatins and dolostatins?

  1. Marine sources
  2. Animals
  3. Venoms and toxins
  4. Combinational chemistry

2. Vermicomposting is done by

  1. Fungus
  2. Bacteria
  3. Worms
  4. Animals

3. If waste materials contaminate the source of  drinking water , which of the following diseases will spread?

  1. Scurvy
  2. Typhoid
  3. Malaria
  4. Anaemia

4. Which vein brings clean blood from the lungs into the heart.

  1. Renal vein
  2. Pulmonary Vein
  3. Vena Cava
  4. Hepatic Vein

5. What happens to a person who receives the wrong type of blood?

  1. All the arteries constrict
  2. All the arteries dilate
  3. The RBCs agglutinate
  4. The spleen and lymphnodes deteriorate

6. If all the bullets could not be removed from gun shot injury of a man, it may cause poisoning by

  1. Mercury
  2. Lead
  3. Iron
  4. Arsenic

7. Ringworm is a ______ disease?

  1. Bacterial
  2. Viral
  3. Protozoan
  4. Fungal

8. The plants which grows under water stress conditions of deserts are

  1. Epiphytes
  2. Xerophytes
  3. Heliophytes
  4. Sciophytes

9. Where does the cabbage store food?

  1. Leaves
  2. Fruit
  3. Stem
  4. Root

10. Study of organisms in relation to their environment

  1. Ecology
  2. Zoology
  3. Entomology
  4. Palynology

ANSWERS

1. 1

2. 3

The term vermicomposting means the use of earthworms for composting organic residues. Earthworms can consume practically all kinds of organic matter and they can eat their own body weight per day. The excreta (castings) of the worms are rich in nitrate, available forms of P, K, Ca and Mg. The passage of soil through earthworms promotes the growth of bacteria and actinomycetes. Actinomycetes thrive in the presence of worms and their content in worm casts is more than six times that in the original soil.

3. 3

4. 2

Arteries

Veins

Oxygen Concentration Arteries carry oxygenated blood (with the exception of the pulmonary artery and umbilical artery). Veins carry deoxygenated blood (with the exception of pulmonary veins and umbilical vein).
Types Pulmonary and systemic arteries. Superficial veins, deep veins, pulmonary veins and systemic veins
Direction of Blood Flow From the heart to various parts of the body. From various parts of the body to the heart.
Anatomy Thick, elastic muscle layer that can handle high pressure of the blood flowing through the arteries. Thin, elastic muscle layer with semilunar valves that prevent the blood from flowing in the opposite direction.
Overview Arteries are red blood vessels that carry blood away from the heart. resistance vessels Veins are blue blood vessels that carry blood towards the heart. capacitance vessels

5. 3

6. 2

Lead intoxication (plumbism)

7. 4

8. 2

A xerophyte  is a species of plant that has adapted to survive in an environment with little liquid water, such as a desert or an ice- or snow-covered region in the Alps or the Arctic.

9. 1

Bulbs

Usually grow just below the surface of the ground and produce a fleshy, leafy shoot above ground. Bulbs usually consist of layers, or clustered segments. e.g. fennel, garlic, leek, onion, shallot, spring onion

Flowers

The edible flowers of certain vegetables. e.g. artichoke (globe), broccoflower, cauliflower, broccoli, choi sum, courgette or other squash flowers, gai  lan (Chinese sprouting broccoli)

Fruits

Vegetable fruit are fleshy and contain seeds. e.g. bitter melon, capsicum, chilli, choko, courgette, cucumber, eggplant, fuzzy melon, Indian marrow, marrow, plantain, pumpkin and squash, scallopini, tindora, tomatillo, tomato, turia (ribbed gourd)

Fungi

When referring to vegetables, fungi are commonly known as mushrooms. button white, Swiss brown, cup (opened not flat), enoki, oyster, Portabello (brown flat or cup), shiitake, truffle – black and white

Leaves

The edible leaves of plants. bok choy, Brussels sprout, cabbage, lettuce, ong choi, puha, radicchio, silverbeet, sorrel, spinach, tat soi, tung ho, watercress, witloof, wong nga baak (Peking cabbage)

Roots

Usually a long or round-shaped taproot. beetroot, carrot, celeriac, daikon, parsnip, radish, swede, turnip

Seeds

(Legumes) apart from sweet corn, seeds grow in pods which are sometimes eaten along with the seed. bean (green, French, butter, snake), broad bean, pea, snow pea, sweet corn

Stems

The edible stalks of plants when the stalk is the main part of the vegetable. asparagus, celery, kohlrabi

Tubers

Vegetables which grow underground on the root of a plant. earth gem, Jerusalem artichoke, kumara, potato, yam

10. 1

Comments (1)

answer 3 should be 2

Leave Your Comment