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- Question
Which process requires cellular energy?
Options- A. Passive transport
- B. Active transport
- C. Both A & B
- D. None of the above
- Correct Answer
- Active transport
ExplanationActive transport is a method of transport of ions or molecules along the cell membrane in the cell from lower to higher concentration region and which needs cellular energy.
There are three main types of Active Transport. They are:
- The Sodium-Potassium pump,
- Exocytosis, and
- Endocytosis.
- 1. The DASH Diet plan was devised to prevent
Options- A. TB
- B. Thyroid
- C. Hypertension
- D. Diabetes Discuss
- 2. Genes contain instructions for assembling what?
Options- A. Amino acids
- B. Proteins
- C. Nucleotides
- D. All of the above Discuss
- 3. What base is found on RNA but not on DNA?
Options- A. Uracil
- B. Thymine
- C. Adenine
- D. None of the above Discuss
- 4. How many amino acids are found in living organisms?
Options- A. 1500
- B. 3000
- C. 20
- D. 4 Discuss
- 5. Which of the following is not an enzyme?
Options- A. Oxytocin
- B. Trypsin
- C. Pepsin
- D. Ptyalin Discuss
- 6. Goosebumps are caused by contractions of the
Options- A. Muscles
- B. Nerves
- C. Bones
- D. All of the above Discuss
- 7. Which parts of the heart receive blood from the lungs?
Options- A. Right ventricle
- B. Left Atrium
- C. Left Ventricle
- D. Right ATrium Discuss
- 8. Both food and air travel through the
Options- A. pharynx
- B. trachea
- C. larynx
- D. alveolus Discuss
- 9. A tetrad is made up of
Options- A. four homologous pairs of chromosomes
- B. two homologous chromosomes, each consisting of two chromatids
- C. four non-homologous chromosomes
- D. two homologous pairs of chromosomes Discuss
- 10. What is plant cell wall mainly composed of?
Options- A. Lipids
- B. Vitamin
- C. Cellulose
- D. Protein Discuss
Biology problems
Search Results
Correct Answer: Hypertension
Explanation:
he DASH Diet plan was devised to prevent high blood pressure i.e, hypertension.
Correct Answer: Proteins
Explanation:
Genes which are segment of DNA of a cell contains instructions for assembling proteins.
Correct Answer: Uracil
Explanation:
Uracil is present in RNA and binds to adenine whereas thymine is present in DNA and binds to adenine.
Correct Answer: 20
Explanation:
Amino acids are a crucial, yet basic unit of protein, and they contain an amino group and a carboxylic group. They play an extensive role in gene expression processes.
Amino acids become proteins when 50 or more are bonded together in a chain. All the millions of different proteins in living things are formed by the bonding of only 20 amino acids.
Eight of these amino acids are essential and cannot be produced by the body.
They are:
? Leucine
? Isoleucine
? Lysine
? Threonine
? Methionine
? Phenylalanine
? Valine
? Tryptophan
? Histidine is an amino acid that is categorized as semi-essential since the human body doesn't always need it to properly function
Nonessential amino acids are produced by the human body either from essential amino acids or from normal protein breakdowns. Nonessential amino acids include:
? Asparagine
? Alanine
? Arginine
? Aspartic acid
? Cysteine
? Glutamic acid
? Glutamine
? Proline
? Glycine
? Tyrosine
? Serine.
Correct Answer: Oxytocin
Explanation:
Oxytocin is a mamallian hormone and also acts as neuro transmitter in the brain.
Correct Answer: Muscles
Correct Answer: Left Atrium
Correct Answer: pharynx
Correct Answer: two homologous chromosomes, each consisting of two chromatids
Correct Answer: Lipids
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