AP 10th Class Question Paper 2025-26 FA1 Biological Science

FOR AP 10TH CLASS FA1 EXAM PREPARATION

AP 10th Class 2025-26
Question Paper · FA1
Biological Science
EXAM YEAR TYPE SUBJECT

AP 10th Class FA1 2025-26 Question Paper Biological Science

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AP FA1 2025-26 Question Paper & Answer Key
Class 10 · Subject: Biological Science (General Science Paper II) (English /
)

Name of the Student: ____________________ Roll No: ____________
Class : X Max Marks : 35
Medium : Telugu & English Time : 1 hr. 15 min.
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SECTION - I (5 x 1 = 5)
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Note: Each question carries 1 mark.
 1

1. In which parts of the alimentary canal, proteins get digested?
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Answer: Stomach and small intestine.

2. Expand ATP.
ATP 1 .
Answer: Adenosine triphosphate.
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3. What is the use of the instrument shown in the picture?
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Answer: Used to measure blood pressure.

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4. What will happen if our respiratory tract is not moist?
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Answer: Increased susceptibility to infections, irritation and inflammation of the respiratory tract, and

s em impaired gas exchange — the protective layers of the respiratory tract dry out.
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6CO2 + 12H2O —(Chlorophyll / Sunlight)→ C6H12O6 (Glucose) + 6O2 + 6H2O
What are the factors required for photosynthesis?
O ణజ < అ స S T T ఏ>??

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SECTION - II (3 x 2 = 6)
అ ల స .
Note: Each question carries 2 marks.
 2 .

6. What is the role of acid in the stomach?
జఠW !ఆ Y ఏ>??
Answer: The acid in the stomach aids in digestion, helps nutrient absorption, and protects the body from
harmful pathogens.

7. What questions will you ask your teachers about the evil effects of tobacco consumption?
[ 1 < క \ ]  ల  N J J ఉY aల ఏ  అb+ ?
Answer: 1. What is tobacco? 2. Why is taking tobacco harmful to human beings? 3. Does tobacco affect
any human organ? 4. What is mixed in tobacco?

8. What would be the consequences of deficiency of hemoglobin in our bodies?
మ c ! de gh ! క \ i ఏ>??
Answer: 1. Tissues and organs do not get sufficient oxygen. 2. Leads to fatigue. 3. Causes weakness in
the body. 4. Shortness of breath. 5. Bleeding problems in women. 6. Heart diseases.
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SECTION - III (4 x 4 = 16)
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Note: Each question carries 4 marks.
 4 .

9. Write the differences between blood and lymph.
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Blood is red in colour. Lymph is colourless.
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In the plasma there are present three types of
corpuscles i.e. R.B.C., W.B.C. and blood platelets.
Only W.B.C.s are present.

Protein contents are very high. Protein contents are very low.
Haemoglobin is present. Haemoglobin is absent.
It acts as transporting fluid in the body. It acts as a middle man between blood and tissue.

10. Observe the flow chart and answer the following questions.
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i) In which organelle does pyruvate break down into carbon dioxide and water?
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Answer: Mitochondria.

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ii) Where does glucose break down into pyruvate?

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Answer: In the cytoplasm.

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Answer: Carbon dioxide + water + energy.
iv) In which cells is lactic acid formed by the process of anaerobic respiration?
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Answer: In muscle cells.

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11. What food habits will you follow to keep your digestive system healthy?
J& ఆƒ „} O J ఏ ఆ† అల అ స ?
Answer: 1. Follow a balanced diet. 2. Eat roughage and fibre-rich food. 3. Drink plenty of water. 4. Eat
lots of fruits and vegetables. 5. Eat seasonal fruits. 6. Include green leafy vegetables in your diet. 7.
Include sufficient fats for a healthy digestive system.

12. Draw a neat labelled diagram of the human excretory system.
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Answer:

Labelled parts: kidneys, renal artery, renal vein, aorta, vena cava, ureters, urinary bladder, urethra.
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SECTION - IV (1 x 8 = 8)
Note: Answer the question.
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Note: This question carries 8 marks.
8 .
Note: This question has an internal choice.
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13. A) How do you demonstrate that carbon dioxide is necessary for photosynthesis?
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B) Write the activity you did in your laboratory to show the effect of saliva on starch. g
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Answer (A):
Aim: To show that carbon dioxide is essential for photosynthesis.
Material: Two potted plants, potassium hydroxide, vaseline.
Procedure:
1. Take two healthy potted plants which are nearly of the same size.
2. Keep them in a dark room for three days.
3. Now place each plant on a separate glass plate. Place a watch-glass containing potassium hydroxide
by the side of one of the plants.
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4. The potassium hydroxide absorbs carbon dioxide. Cover both plants with separate bell-jars as shown
in the figure. Use vaseline to seal the bottom of the jars to the glass plates so that the set-up is air-tight.

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Keep the plants in sunlight for about two hours, then pluck a leaf from each plant and check for the
presence of starch.
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a Observation:
(i) The leaf from (a) shows absence of starch, as the CO2 produced by respiration is absorbed by KOH
and so there is no photosynthesis.
(ii) The leaf from (b) shows presence of enough starch.
Conclusion: We can conclude from this activity that carbon dioxide is necessary to carry out
photosynthesis at the proper rate. That is why plants take in CO2 from the atmosphere during the
day. This shows that carbon dioxide is essential for photosynthesis.

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