Science Grade 10: Male Reproductive System External Parts

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What is the main function of the penis?

For reproduction only

For sexual intercourse, reproduction, and urination (correct)

For sexual intercourse only

For urination only

Which part of the male external genitalia is highly sensitive to the touch?

The glans penis

The corona and frenulum (correct)

The scrotum

The urethra

What is the function of the testicles (testes)?

They produce testosterone

They produce sperm

They produce both sperm and testosterone (correct)

They regulate temperature for sperm production

What is the purpose of the vas deferens?

To transport sperm from the epididymis Signup and view all the answers

What is the role of the prostate gland?

It secretes an alkaline fluid to neutralize acidity Signup and view all the answers

What is the purpose of the Cowper's glands (bulbourethral glands)?

To secrete fluid to lubricate the urethra during sexual arousal Signup and view all the answers

What is the primary function of testosterone in males?

All of the above Signup and view all the answers

What is the role of the epididymis?

To store sperm for up to 6 weeks as they mature Signup and view all the answers

What is the main function of the seminal vesicles?

To secrete a fluid that nourishes and enables sperm movement Signup and view all the answers

What is the correct pathway for sperm production and release?

Testes -> Epididymis -> Vas deferens -> Seminal vesicles -> Prostate gland -> Urethra Signup and view all the answers

What is the main function of DNA replication?

To ensure the accurate copying of genetic information for cell growth, repair, and reproduction Signup and view all the answers

What is the process of DNA replication called?

Unwinding the double helix structure Signup and view all the answers

What is the main function of RNA?

To transfer genetic information from DNA to ribosomes for protein synthesis Signup and view all the answers

What is the main function of a gene?

To code for a single protein (polypeptide) molecule Signup and view all the answers

What is the main function of a codon?

To code for a specific amino acid Signup and view all the answers

What is the main function of a ribosome?

To synthesize proteins Signup and view all the answers

What is the main difference between transcription and translation?

Transcription produces RNA, while translation produces proteins Signup and view all the answers

What is the main function of transfer RNA (tRNA)?

To carry amino acids to the ribosomes Signup and view all the answers

What is the main function of the small nuclear ribonucleoproteins (snRNPs)?

To cut the introns from pre-mRNA Signup and view all the answers

What is the main function of the spliceosome?

To join the remaining exons together to form the final mRNA Signup and view all the answers