31. What is the deep subcutaneous tissue (hypodermis) made of?
[A] fat
[B] connective tissue
[C] Both 1 and 2
[D] keratin
Show Answer
Correct Answer: C [Both 1 and 2]
Notes:
The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
32. Which of the following is an example of a basic nervous system function?
[A] Remembering a painful experience
[B] Sweating during a yoga class
[C] Feeling afraid of the dark
[D] Learning English as a second language
Show Answer
Correct Answer: B [Sweating during a yoga class]
Notes:
Sweating during a yoga class is an example of a basic nervous system function.
33. The open space between bones is filled by which of the following?
[A] air
[B] blood
[C] bone cells
[D] bone marrow
Show Answer
Correct Answer: D [bone marrow]
Notes:
Bone marrow is found in the hollow center of bones. Bone marrow cells – the soft, fatty core of many bones, this protected hollow space makes red blood cells and releases them into the bloodstream.
34. What is different from blood in being lymph?
[A] no plasma
[B] more RBCs and less WBCs
[C] more WBCs and no RBCs
[D] plasma without proteins
Show Answer
Correct Answer: C [more WBCs and no RBCs]
Notes:
The difference between blood and lymph is that lymph, unlike blood, is colorless and is the return fluid from tissues to the central circulation.
35. Which systems protect our body against disease-causing microbes?
[A] Immune system
[B] Digestive system
[C] Excretory system
[D] Respiratory system
Show Answer
Correct Answer: A [Immune system]
Notes:
The immune system protects our body against disease-causing microbes. The main parts of the immune system are white blood cells, antibodies, complement system, lymphatic system, spleen, thymus, and bone marrow.
36. Which of the following secretes digestive enzymes into the duodenum that break down proteins, fats, and carbohydrates?
[A] Liver
[B] Pancreas
[C] Gallbladder
[D] Small intestine
Show Answer
Correct Answer: B [Pancreas]
Notes:
The pancreas secretes digestive enzymes into the duodenum that break down proteins, fats, and carbohydrates.
37. Initiates and maintains milk production in breasts:
[A] Prolactin
[B] Renin and angiotensin
[C] Oxytocin
[D] Erythropoietin
Show Answer
Correct Answer: A [Prolactin]
Notes:
Prolactin initiates and maintains milk production in breasts. Prolactin secretes by the Pituitary gland.
38. Which of the following cell organelle contains DNA apart from nucleus?
[A] Golgi Apparatus
[B] Mitochondria
[C] Cytoplasm
[D] Ribosome
Show Answer
Correct Answer: B [Mitochondria]
Notes:
The three organelles that contain DNA are the nucleus, mitochondria and chloroplasts. Mitochondria are unlike most organelles (with an exception of plant chloroplasts) in that they have their own set of DNA and genes that encode proteins. They are specialized structures unique to the cells of animals, plants and fungi.
39. The green colour of the leaves is due to the presence of ____:
[A] Proteins
[B] Carbohydrates
[C] Lipids
[D] Chlorophyll
Show Answer
Correct Answer: D [Chlorophyll]
Notes:
The green color in leaves is caused by the presence of a compound called “chlorophyll,” which the plant produces to do photosynthesis for capturing solar energy. The chlorophyll is green because it absorbs red and blue wavelengths of light — and so green is not absorbed and is reflected, making the plant look green to eyes.
40. Pulses are obtained from the family of ____:
[A] Liliaceae
[B] Fungi
[C] Cycadaceae
[D] Leguminosae
Show Answer
Correct Answer: D [Leguminosae]
Notes:
Pulse, in botany, is a common name for members of the Fabaceae (Leguminosae), a large plant family. Pulses, high in protein, are used as food for humans and other animals. Besides, they play a key role in crop rotation due to their ability to fix nitrogen.
