Biology Practice Question and Answer
8 Q: Which is a specialised excretory cell found in Platyhelminthes that acts like a kidney, removing waste material through filtration?
380 064a67f809a74b54cff5c6cec
64a67f809a74b54cff5c6cec- 1Fat cellfalse
- 2Flame celltrue
- 3Stem cellfalse
- 4Sponge cellfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Flame cell"
Explanation :
1. Which is a special excretory cell found in Platyhelminthes which acts like a kidney, and the flame cell does the work of removing waste material through filtration?
Q: Nyctalopia, more commonly known as Night Blindness, is caused by the deficiency of which nutrient?
379 064bfc7da2d3130f575545330
64bfc7da2d3130f575545330- 1Vitamin Cfalse
- 2Magnesiumfalse
- 3Potassiumfalse
- 4Vitamin Atrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Vitamin A"
Explanation :
1. Nyctalopia (night blindness) is caused by deficiency of Vitamin A.
2. Foods rich in Vitamin A are carrots, spinach, sweet potatoes, lettuce, etc.
3. Vitamin A deficiency can cause damage to rod cells, which reduces the ability to see in low light.
Q: Where does the mouth lead into the alimentary canal?
378 063c7b828f3a01033444ec47e
63c7b828f3a01033444ec47e- 1Pharynxfalse
- 2Larynxfalse
- 3Oral cavitytrue
- 4Tonguefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Oral cavity"
Q: Which part of the digestive system receives secretions from the liver and the pancreas?
376 064919e0ecae316dfef6878f3
64919e0ecae316dfef6878f3- 1Large intestinesfalse
- 2Stomachfalse
- 3Gall bladderfalse
- 4Small intestinestrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Small intestines"
Explanation :
The small intestine is the part of the digestive system that receives secretions from the liver and pancreas.
Q: Insulin facilitates glucose uptake in
365 063cfbac196cf700df49c723f
63cfbac196cf700df49c723f- 1Kidney tubulefalse
- 2Brainfalse
- 3Red blood cellsfalse
- 4Skeleton muscletrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Skeleton muscle"
Q: The human shoulder joint is an example of a ______ joint.
362 0649196ac14cf8fe013d799e2
649196ac14cf8fe013d799e2- 1fixedfalse
- 2pivotalfalse
- 3hingefalse
- 4ball and sockettrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "ball and socket"
Explanation :
1. The human shoulder joint is an example of a ball and socket joint.
2. In this type of joint, a rounded end of one bone fits into a flat or cup-shaped recess of the other bone.
Q: Which is the smallest bone in the human body?
361 064b1793ce154aff533669d03
64b1793ce154aff533669d03- 1Stapestrue
- 2Phalangesfalse
- 3Humerusfalse
- 4Pelvisfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Stapes"
Explanation :
1. The smallest bone in the human body is the stapes.
2. This bone is located in the middle ear.
3. The length of the stapes is about 3 millimeters.
Q: ______ is caused when a child’s growing bones fail to develop due to a lack of vitamin D.
361 064b17e342d3130f57524cb8c
64b17e342d3130f57524cb8c- 1Night blindnessfalse
- 2Ricketstrue
- 3Goitrefalse
- 4Scurvyfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Rickets"
Explanation :
1. Rickets occurs when a child's growing bones do not develop due to vitamin D deficiency.
2. Vitamin D is an essential nutrient that helps in the absorption of calcium and phosphate.
3. Symptoms of rickets include.
- Pain and tenderness in the bones of the feet and hands
- curvature in the bones of the legs
- pain in shoulders and hips
- muscle weakness
- delayed development