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- Question
Which molecule is always single stranded?
Options- A. RNA
- B. DNA
- C. Mitochondria
- D. Cellulose
- Correct Answer
- RNA
ExplanationRNA is a single-stranded molecule in many of its biological roles and consists of a much shorter chain of nucleotides.
- 1. The renal medulla is composed of tissue called
Options- A. Renal Sinus
- B. Renal Pyramids
- C. Vasa Recta
- D. Renal Pelvis Discuss
- 2. In which of the following, the cellular power plants - Mitochondria are absent?
Options- A. Bacteria
- B. Red Algae
- C. Brown Algae
- D. Green Algae Discuss
- 3. Which of the following is a nucleotide found in DNA?
Options- A. Deoxyribose + Phosphate Group + Polymerase
- B. Adenine + Phosphate Group + Thymine
- C. Deoxyribose + Phosphate Group + Thymine
- D. Cytosine + Phosphate Group + Uracil Discuss
- 4. Sugar is a component of which of the following?
Options- A. Lipids
- B. Nucleic acids
- C. Carbohydrates
- D. Both B & C Discuss
- 5. What is a direct result of aerobic respiration?
Options- A. The enzymes for anaerobic respiration are produced and stored in lysosomes
- B. Alcohol is produced by yeast and bacteria
- C. The potential energy of glucose is transferred to ATP molecules
- D. Lactic acid is produced in muscle tissue Discuss
- 6. In what chief capacity does vitamin k function?
Options- A. raise plasma calcium
- B. blood clot
- C. produce rhodopsin
- D. bone density Discuss
- 7. Blood flow to a tissue will increase if the
Options- A. pH rises
- B. Level of carbon dioxide at the tissue increases
- C. Vessels constrict
- D. Level of oxygen at the tissue increases Discuss
- 8. Menstruation is triggered by a drop in the levels of
Options- A. progesterone
- B. relaxin
- C. FSH
- D. LH Discuss
- 9. Body cells that respond to insulin include
Options- A. Liver cells
- B. Endothelial cells
- C. Skin cells
- D. Bone cells Discuss
- 10. What color tubes are used for which tests in phlebotomy? Discuss
Biology problems
Search Results
Correct Answer: Renal Pyramids
Explanation:
The renal medulla is composed of tissue called Renal Pyramids.
Correct Answer: Bacteria
Explanation:
Mitochondria is absent in Bacteria as well as in Blue Green Algae. They are seen in eukaryotic cells for respiration purpose.
Correct Answer: Deoxyribose + Phosphate Group + Thymine
Correct Answer: Carbohydrates
Explanation:
Sugar is a component of Carbohydrates.
Correct Answer: The potential energy of glucose is transferred to ATP molecules
Explanation:
Aerobic respiration is the reaction takes place in presence of oxygen which quite opposite to anerobic. The direct result of aerobic repiration is ATP molecules from breakdown of glucose molecules.
Correct Answer: blood clot
Explanation:
The chief capacity of vitamin K is to help our blood clot so that we don't bleed too much.
Vitamin K is actually made up of two different types of vitamins, Vitamin K1 and Vitamin K2. They are both responsible for helping the blood to clot so that people do not bleed to death. Vitamin K1 can be consumed by eating leafy green vegetables, such as kale and spinach, as well as other vegetables, such as broccoli and collard greens. Meats, cheeses, and eggs can provide a great source of Vitamin K2.
Correct Answer: Level of carbon dioxide at the tissue increases
Explanation:
The movement of blood in the body is called blood flow. The blood flows through the vessels, tissues and organs. Blood flow to a tissue will increase if the level of carbon dioxide at the tissue increases.
Correct Answer: progesterone
Explanation:
The principal hormone secreted by the corpus luteum is progesterone. Menstruation is triggered by a drop in the levels of progesterone.
Correct Answer: Liver cells
Explanation:
Body cells that respond to insulin include liver cells and many other cells in the human body.
Correct Answer: Phlebotomy is the process of making an incision in a vein with a needle The person who performs that is called as Phlebotomist Given below are tubes color for which test test which one is used is given clearly They are :: Grey-Top Tube - Potassium Oxalate This tube is used primarily for glucose tolerance testing Lavender-Top Tube - EDTA: EDTA is the anticoagulant used for most hematology procedures Its primary use is for the CBC and individual components of the CBC The larger (6ml) tube is used for blood bank procedures Red-Top Tube - This tube has no anticoagulant and is used for many chemistry tests, drug levels, and blood bank procedures Green-Top Tube - Sodium Heparin or Lithium Heparin Navy Blue-Top Tube - There are two general types - one with K2 EDTA and one with no anti-coagulant This tube is used primarily for trace metal analysis Serum Separator Tube (SST®) - This tube contains a clot activator and serum gel separator It has no anticoagulant and is used for many chemistry tests It cannot be used for certain drug levels or any blood bank procedures Yellow-Top Tube - ACD (Sol A or Sol B) Blue-Top Tube - Sodium Citrate (NaCitrate): This tube is primarily used for coagulation studies (PT and PTT) Complete filling of this tube is essential to obtain accurate results
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