Question-3
a. Cross pollination is better than self pollination why?
b. Write the characters of good antibiotics. C. Draw a neuron and label it.
d. Define: -
(0) Vaccine (ii) Toxoids (iii) Serum (iv) Herkogamy
Question-4
a. What is cell theory? State the features.
b. Draw a bisexual flower and label it. c. Write the differences between anaerobic and aerobic respiration.
d. Write the process of mushroom cultivation explain. e. Write the function of the following minerals - (i) Sodium
Question-5
a. Name the deficiency diseases due to lack of following: - Vit B (iv) Vit C
(i) Vit A (ii) Vit D (ii)
b. Write four functions of fat on our diet
c. Write four usefulness of fungi.
d. Farmers plough the field before planting crops. Why?
e. Distinguish between epigeal and hypogeal germination with examples.
Question-6
a. Define pathology.
b. Which organelle is known as power house of the cell?
C. Name the tissues found in human heart.
d. What is placenta? e. Name two usefulness of bacteria.
f. What is the function of cotyledon?
g Tinned food is not good to eat always. Why?
h. Water is the most important nutrients justify.
i. Define ornithophily with example. j. How many chromosomes pairs are found in human cell?
(ii) Iron.
Answers
Answer:
Business has various social responsibilities towards different interested groups. identify the relevant interested groups in the following cases
1.entrepreneur should act according to well accepted values of the society.
2.Business should provide fair return on their in capital investment.
3. Business should avoid any type of pollution
4. Business enterprises must pay taxes regularly and honestly.
5. Business suit supply good quality products at reasonable price.
6. They should be proper and safe working cconditio
Explanation:
3. (a) Cross pollinated flowers produce more pollen garains and helps flower to survive in different climate. It allows diversity in the species as the genetic information of different plants are combined. It concludes that Cross pollination is good than self pollination.
(b) Characteristics of good antibiotics will kill all the harmful bacteria in the host.
(d) (i) Vaccine helps us to fight against virus and increase our immune system.
(ii) Toxoids also can be used as a vaccine.
(iii) A protein-rich liquid which got seperate when blood coagulate is Serum.
(iv) Herkogamy is a common strategy employed by hermaphroditic angiosperms to reduce sexual interference between male and female function.
4. (a) Cell theory states that living things are composed of one or more cells.
Cell is basic unit of life, and that cells arise from existing cells.
(c) Anaerobic respiration is the process of creating energy without the presence of Oxygen.
Aerobic respiration is the process of creating energy with the presence of Oxygen.
(d) The process of mushroom cultivation are 6;
- Making Composting
- Finish composting
- Spawning
- Casing
- Pinning
- Cropping
(e) Nerve transmission, Muscle Contraction,and Proper fluid balance are function of sodium.
5. (a) (i) Vitamin A- Night Blindness
(ii) Vitamin B- Beri Beri
(iii) Vitamin C- Scurvy
(iv) Vitamin D- Rickets
(b) Four function of fat in our diet;
- Provision of energy.
- Carrier of Vitamins.
- Structrual Component.
4. Saturated fatty acids.
(c) Four uses of fungi;
- Produce citric acid.
- Produce Antibiotics.
- Human hormones.
- Used in Pest control.
- In making Pencilin. (A Vaccine)
(d) For making Field fertile and to remove weeds.
(e) •Epigeal gemination take •Hypogeal germination take
place above the ground. place below the ground.
•Cotyledons emerge out •Cotyledons remain in the
of the soil. soil.
•Hypocotyl is long and its •Hypocotyl is short and its
upper part of the hypocotyl upper part of the hypcotyl is
is curved down to protect not curved down.
the plumle.
•Example- Green beans • Examples- Pea, Corn
6. (a) Pathology is scientific study of diseases of the body.
(b) Mithocondria is known as the power house of the cell.
(c) Cardiac muscle tissue is found in human heart.
(d) Placenta is an organ that develop in ureturs during pregnancy.
(e) Bacteria are used in the production of cheese and yogurt.
(f) Function of cotyledon is to give to the developing embryo.
(g) Because they might caught harmful bacteria causing food poisoning.
(h) Because water exceed the body's ability to produce.
(i) Ornithophily is the process in which Cross pollination takes place with the help of Birds.
Example; Bottle Brush
(j) 46 chromosomes are found in human body in which 23 are male and 23 are female.
(k) (i) Iron is essential element for blood production.
(ii) Iron is a hard silver metal.
(iii) Iron is found in meat and fish.
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